Rule
Golden Hour
Golden Hour Forecast for Ha Long Bay, Vietnam
Ha Long, Quảng Ninh, Vietnam
The view layers Ha Long Bay's limestone towers from a boat or high viewpoint, using a junk silhouette and open water to separate overlapping karst forms.
5 matching opportunities in the 14-day forecast.
Hourly forecast scores
Forecast valid from Oct 7, 2026, 11:00 PM UTC (one hour; not an observation)Low Cloud Cover0%
Mid Cloud Cover0%
High Cloud Cover88%
Sun Elevation3.0°
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Asia/Bangkok
First upcoming window
Exceptional Golden Hour at Sunset
Ha Long Bay
Thu, Oct 8 · 17:04–17:47 · 1h window
Medium confidence
67%
🌇Golden Hour Potential92.4%
Low Cloud Cover: 0%
Mid Cloud Cover: 0%
High Cloud Cover: 0%
Sun Elevation: 7.1° (Daylight)
Exceptional Golden Hour at Sunset
Ha Long Bay
Sun, Oct 11 · 17:02–17:45
🌇Golden Hour Potential:91.5%
Low
Exceptional Golden Hour at Sunset
Ha Long Bay
Mon, Oct 12 · 17:01–17:44
🌇Golden Hour Potential:88.9%
Low
Exceptional Golden Hour (calm) at Sunset
Ha Long Bay
Wed, Oct 14 · 17:00–17:42
🌇Golden Hour Potential:91.9%
Low
Exceptional Golden Hour at Sunset
Ha Long Bay
Thu, Oct 15 · 17:00–17:41
🌇Golden Hour Potential:92.6%
Low
72-hour requirements breakdown
When available, this detailed table covers only the stated 72-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Asia/Bangkok.
Most common blockers
Ranked across the 95-hour forecast horizon, not the full opportunity period.
- Golden Hour Potential99% of hours
- Golden Hour88% of hours
- Precipitation Chance58% of hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time Asia/Bangkok | Golden Hour Any | Golden Hour Potential ≥ 80.0% | Precipitation Chance ≤ 5.0% | Visibility ≥ 1000.0m |
|---|---|---|---|---|
| Thu, Oct 8 | ||||
| Rule fails. 06:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 58%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 13920m. Meets requirement |
| Rule fails. 07:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 29%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 13920m. Meets requirement |
| Rule fails. 08:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 29%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 17400m. Meets requirement |
| Rule fails. 09:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 29%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 20180m. Meets requirement |
| Rule fails. 10:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 30%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 20160m. Meets requirement |
| Rule fails. 11:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 20160m. Meets requirement |
| Rule fails. 12:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 20160m. Meets requirement |
| Rule fails. 13:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 24%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 20160m. Meets requirement |
| Rule fails. 14:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 24%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 17380m. Meets requirement |
| Rule fails. 15:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 17380m. Meets requirement |
| Rule fails. 16:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 17380m. Meets requirement |
| Rule passes. 17:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 92%. Meets requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 17380m. Meets requirement |
| Rule fails. 18:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 25%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 17380m. Meets requirement |
| Rule fails. 19:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 15660m. Meets requirement |
| Rule fails. 20:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 29%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 15660m. Meets requirement |
| Rule fails. 21:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 29%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 15660m. Meets requirement |
| Rule fails. 22:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 15640m. Meets requirement |
| Rule fails. 23:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 15640m. Meets requirement |
| Fri, Oct 9 | ||||
| Rule fails. 24:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 25%. Misses requirement | Precipitation Chance: 1%. Meets requirement | Visibility: 13880m. Meets requirement |
| Rule fails. 01:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 26%. Misses requirement | Precipitation Chance: 2%. Meets requirement | Visibility: 13880m. Meets requirement |
| Rule fails. 02:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 27%. Misses requirement | Precipitation Chance: 5%. Meets requirement | Visibility: 13880m. Meets requirement |
| Rule fails. 03:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 18%. Misses requirement | Precipitation Chance: 8%. Misses requirement | Visibility: 13880m. Meets requirement |
| Rule fails. 04:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 16%. Misses requirement | Precipitation Chance: 12%. Misses requirement | Visibility: 13880m. Meets requirement |
| Rule fails. 05:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 68%. Misses requirement | Precipitation Chance: 17%. Misses requirement | Visibility: 13860m. Meets requirement |
| Rule fails. 06:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 50%. Misses requirement | Precipitation Chance: 22%. Misses requirement | Visibility: 13860m. Meets requirement |
| Rule fails. 07:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 25%. Misses requirement | Visibility: 15620m. Meets requirement |
| Rule fails. 08:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 20%. Misses requirement | Precipitation Chance: 25%. Misses requirement | Visibility: 17340m. Meets requirement |
| Rule fails. 09:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 24%. Misses requirement | Visibility: 17340m. Meets requirement |
| Rule fails. 10:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 25%. Misses requirement | Visibility: 17340m. Meets requirement |
| Rule fails. 11:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 22%. Misses requirement | Precipitation Chance: 32%. Misses requirement | Visibility: 5640m. Meets requirement |
| Rule fails. 12:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 22%. Misses requirement | Precipitation Chance: 42%. Misses requirement | Visibility: 6200m. Meets requirement |
| Rule fails. 13:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 23%. Misses requirement | Precipitation Chance: 51%. Misses requirement | Visibility: 2060m. Meets requirement |
| Rule fails. 14:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 23%. Misses requirement | Precipitation Chance: 57%. Misses requirement | Visibility: 1860m. Meets requirement |
| Rule fails. 15:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 20%. Misses requirement | Precipitation Chance: 61%. Misses requirement | Visibility: 2460m. Meets requirement |
| Rule fails. 16:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 20%. Misses requirement | Precipitation Chance: 63%. Misses requirement | Visibility: 2080m. Meets requirement |
| Rule fails. 17:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 38%. Misses requirement | Precipitation Chance: 62%. Misses requirement | Visibility: 2000m. Meets requirement |
| Rule fails. 18:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 20%. Misses requirement | Precipitation Chance: 59%. Misses requirement | Visibility: 1860m. Meets requirement |
| Rule fails. 19:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 22%. Misses requirement | Precipitation Chance: 55%. Misses requirement | Visibility: 2880m. Meets requirement |
| Rule fails. 20:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 25%. Misses requirement | Precipitation Chance: 51%. Misses requirement | Visibility: 3300m. Meets requirement |
| Rule fails. 21:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 25%. Misses requirement | Precipitation Chance: 47%. Misses requirement | Visibility: 4500m. Meets requirement |
| Rule fails. 22:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 24%. Misses requirement | Precipitation Chance: 43%. Misses requirement | Visibility: 7640m. Meets requirement |
| Rule fails. 23:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 24%. Misses requirement | Precipitation Chance: 41%. Misses requirement | Visibility: 8920m. Meets requirement |
| Sat, Oct 10 | ||||
| Rule fails. 24:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 26%. Misses requirement | Precipitation Chance: 39%. Misses requirement | Visibility: 10720m. Meets requirement |
| Rule fails. 01:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 15%. Misses requirement | Precipitation Chance: 39%. Misses requirement | Visibility: 6340m. Meets requirement |
| Rule fails. 02:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 14%. Misses requirement | Precipitation Chance: 42%. Misses requirement | Visibility: 4300m. Meets requirement |
| Rule fails. 03:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 14%. Misses requirement | Precipitation Chance: 46%. Misses requirement | Visibility: 4140m. Meets requirement |
| Rule fails. 04:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 15%. Misses requirement | Precipitation Chance: 49%. Misses requirement | Visibility: 7300m. Meets requirement |
| Rule fails. 05:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 37%. Misses requirement | Precipitation Chance: 50%. Misses requirement | Visibility: 7080m. Meets requirement |
| Rule fails. 06:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 43%. Misses requirement | Precipitation Chance: 51%. Misses requirement | Visibility: 8300m. Meets requirement |
| Rule fails. 07:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 18%. Misses requirement | Precipitation Chance: 49%. Misses requirement | Visibility: 7400m. Meets requirement |
| Rule fails. 08:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 45%. Misses requirement | Visibility: 8680m. Meets requirement |
| Rule fails. 09:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 39%. Misses requirement | Visibility: 10860m. Meets requirement |
| Rule fails. 10:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 33%. Misses requirement | Visibility: 15580m. Meets requirement |
| Rule fails. 11:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 28%. Misses requirement | Visibility: 17280m. Meets requirement |
| Rule fails. 12:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 24%. Misses requirement | Visibility: 17280m. Meets requirement |
| Rule fails. 13:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 17%. Misses requirement | Precipitation Chance: 20%. Misses requirement | Visibility: 17280m. Meets requirement |
| Rule fails. 14:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 17%. Misses requirement | Visibility: 17280m. Meets requirement |
| Rule fails. 15:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 16%. Misses requirement | Visibility: 17280m. Meets requirement |
| Rule fails. 16:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 14%. Misses requirement | Visibility: 17280m. Meets requirement |
| Rule fails. 17:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 77%. Misses requirement | Precipitation Chance: 12%. Misses requirement | Visibility: 15560m. Meets requirement |
| Rule fails. 18:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 10%. Misses requirement | Visibility: 13800m. Meets requirement |
| Rule fails. 19:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 8%. Misses requirement | Visibility: 13800m. Meets requirement |
| Rule fails. 20:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 7%. Misses requirement | Visibility: 13800m. Meets requirement |
| Rule fails. 21:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 5%. Meets requirement | Visibility: 13800m. Meets requirement |
| Rule fails. 22:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 4%. Meets requirement | Visibility: 13800m. Meets requirement |
| Rule fails. 23:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 3%. Meets requirement | Visibility: 11880m. Meets requirement |
| Sun, Oct 11 | ||||
| Rule fails. 24:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 1%. Meets requirement | Visibility: 11880m. Meets requirement |
| Rule fails. 01:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 11880m. Meets requirement |
| Rule fails. 02:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 10280m. Meets requirement |
| Rule fails. 03:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 10280m. Meets requirement |
| Rule fails. 04:00 | Golden Hour: No. Misses requirement | Golden Hour Potential: 0%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 8440m. Meets requirement |
| Rule fails. 05:00 | Golden Hour: Yes. Meets requirement | Golden Hour Potential: 63%. Misses requirement | Precipitation Chance: 0%. Meets requirement | Visibility: 6040m. Meets requirement |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).
Supporting forecast inputs
Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.
| Forecast time (Asia/Bangkok) | Diffuse Radiation | Direct Radiation | Golden Hour | High Clouds | Low Clouds | Mid-Level Clouds | Relative Humidity | Solar Elevation | Total Cloud Coverage | Wind Speed |
|---|---|---|---|---|---|---|---|---|---|---|
| Thu, Oct 8, 2026Sunrise · Sunset | ||||||||||
| 2W/m² | 0W/m² | Unavailable | 88% | 0% | 0% | 79% | 3° | 88% | 0.92m/s | |
| 52W/m² | 45W/m² | Unavailable | 9% | 0% | 0% | 74% | 17° | 10% | 1.4m/s | |
| 95W/m² | 212W/m² | Unavailable | 1% | 0% | 0% | 55% | 30° | 1% | 0.59m/s | |
| 120W/m² | 401W/m² | Unavailable | 0% | 2% | 0% | 48% | 43° | 2% | 1.4m/s | |
| 138W/m² | 558W/m² | Unavailable | 0% | 7% | 0% | 45% | 54° | 7% | 2m/s | |
| 153W/m² | 660W/m² | Unavailable | 0% | 6% | 0% | 45% | 62° | 6% | 2.6m/s | |
| 158W/m² | 701W/m² | Unavailable | 1% | 78% | 0% | 45% | 63° | 78% | 3.3m/s | |
| 304W/m² | 342W/m² | Unavailable | 0% | 38% | 1% | 50% | 57° | 38% | 4m/s | |
| 231W/m² | 429W/m² | Unavailable | 0% | 16% | 1% | 51% | 46° | 16% | 4.3m/s | |
| 163W/m² | 365W/m² | Unavailable | 0% | 1% | 0% | 53% | 34° | 1% | 5.3m/s | |
| 104W/m² | 268W/m² | Unavailable | 0% | 0% | 0% | 53% | 21° | 0% | 4.3m/s | |
| 63W/m² | 97W/m² | Unavailable | 0% | 0% | 0% | 57% | 7.1° | 0% | 2.9m/s | |
| Night | 9W/m² | 5W/m² | Unavailable | 0% | 0% | 0% | 61% | -6.9° | 0% | 2.2m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 0% | 0% | 0% | 63% | -21° | 0% | 2.4m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 41% | 0% | 0% | 67% | -35° | 41% | 1.8m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 92% | 0% | 0% | 71% | -49° | 92% | 1.5m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 90% | 0% | 0% | 73% | -62° | 90% | 1.6m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 100% | 0% | 0% | 74% | -72° | 100% | 1.4m/s |
| Fri, Oct 9, 2026Sunrise · Sunset | ||||||||||
| Night | 0W/m² | 0W/m² | Unavailable | 98% | 5% | 0% | 75% | -74° | 98% | 1.7m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 95% | 11% | 7% | 75% | -65° | 96% | 1.9m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 77% | 24% | 13% | 75% | -53° | 83% | 1.9m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 70% | 23% | 27% | 76% | -39° | 81% | 2m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 82% | 10% | 9% | 75% | -25° | 86% | 2.1m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 34% | 15% | 17% | 76% | -11° | 48% | 1.5m/s |
| 1W/m² | 0W/m² | Unavailable | 30% | 89% | 84% | 75% | 2.9° | 93% | 1.4m/s | |
| 43W/m² | 2W/m² | Unavailable | 38% | 34% | 48% | 68% | 16° | 77% | 1.1m/s | |
| 137W/m² | 46W/m² | Unavailable | 28% | 13% | 91% | 59% | 30° | 95% | 1.3m/s | |
| 241W/m² | 99W/m² | Unavailable | 49% | 10% | 100% | 53% | 42° | 100% | 3.4m/s | |
| 295W/m² | 105W/m² | Unavailable | 66% | 9% | 100% | 56% | 54° | 100% | 4.7m/s | |
| 313W/m² | 165W/m² | Unavailable | 55% | 2% | 100% | 61% | 61° | 100% | 4.9m/s | |
| 250W/m² | 26W/m² | Unavailable | 31% | 2% | 100% | 65% | 62° | 100% | 4.5m/s | |
| 206W/m² | 104W/m² | Unavailable | 94% | 1% | 62% | 88% | 56° | 95% | 4.5m/s | |
| 135W/m² | 33W/m² | Unavailable | 100% | 0% | 58% | 95% | 46° | 100% | 3.9m/s | |
| 54W/m² | 2W/m² | Unavailable | 100% | 2% | 63% | 94% | 34° | 100% | 4.4m/s | |
| 52W/m² | 0W/m² | Unavailable | 100% | 5% | 100% | 94% | 20° | 100% | 4.6m/s | |
| 13W/m² | 0W/m² | Unavailable | 100% | 1% | 100% | 94% | 6.9° | 100% | 5.1m/s | |
| Night | 1W/m² | 0W/m² | Unavailable | 98% | 1% | 100% | 93% | -7.1° | 100% | 5.3m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 100% | 9% | 99% | 93% | -21° | 100% | 5.8m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 83% | 2% | 100% | 93% | -35° | 100% | 4.8m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 45% | 17% | 14% | 92% | -49° | 58% | 5.1m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 20% | 20% | 22% | 91% | -62° | 41% | 4.5m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 42% | 11% | 32% | 89% | -73° | 55% | 4m/s |
| Sat, Oct 10, 2026Sunrise · Sunset | ||||||||||
| Night | 0W/m² | 0W/m² | Unavailable | 77% | 19% | 36% | 87% | -75° | 87% | 4.1m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 91% | 49% | 94% | 85% | -66° | 99% | 3.7m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 87% | 35% | 100% | 90% | -53° | 100% | 2.9m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 92% | 99% | 90% | 92% | -39° | 100% | 3.2m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 69% | 94% | 84% | 90% | -25° | 99% | 3m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 96% | 100% | 99% | 90% | -11° | 100% | 2.8m/s |
| 1W/m² | 0W/m² | Unavailable | 78% | 13% | 37% | 89% | 2.8° | 88% | 2.9m/s | |
| 47W/m² | 16W/m² | Unavailable | 97% | 6% | 69% | 86% | 16° | 99% | 3.2m/s | |
| 148W/m² | 49W/m² | Unavailable | 76% | 0% | 16% | 81% | 30° | 80% | 2.8m/s | |
| 192W/m² | 247W/m² | Unavailable | 70% | 3% | 30% | 74% | 42° | 78% | 3.1m/s | |
| 249W/m² | 319W/m² | Unavailable | 45% | 0% | 37% | 66% | 53° | 65% | 3.5m/s | |
| 223W/m² | 480W/m² | Unavailable | 6% | 1% | 48% | 60% | 61° | 52% | 3.3m/s | |
| 291W/m² | 430W/m² | Unavailable | 5% | 1% | 23% | 57% | 62° | 27% | 3.4m/s | |
| 221W/m² | 526W/m² | Unavailable | 4% | 0% | 14% | 55% | 56° | 17% | 3.8m/s | |
| 176W/m² | 505W/m² | Unavailable | 5% | 0% | 8% | 54% | 46° | 12% | 4m/s | |
| 136W/m² | 424W/m² | Unavailable | 17% | 0% | 3% | 57% | 33° | 20% | 3.9m/s | |
| 107W/m² | 254W/m² | Unavailable | 12% | 1% | 1% | 61% | 20° | 13% | 3.4m/s | |
| 66W/m² | 84W/m² | Unavailable | 70% | 1% | 2% | 68% | 6.7° | 71% | 2.5m/s | |
| Night | 8W/m² | 3W/m² | Unavailable | 93% | 4% | 4% | 77% | -7.3° | 94% | 1.3m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 41% | 9% | 1% | 79% | -21° | 46% | 0.56m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 2% | 9% | 0% | 79% | -35° | 11% | 0.7m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 3% | 1% | 0% | 79% | -49° | 3% | 0.97m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 5% | 0% | 0% | 82% | -62° | 5% | 1m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 5% | 0% | 3% | 85% | -73° | 9% | 1m/s |
| Sun, Oct 11, 2026Sunrise · Sunset | ||||||||||
| Night | 0W/m² | 0W/m² | Unavailable | 4% | 0% | 9% | 87% | -75° | 12% | 1.2m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 13% | 0% | 2% | 88% | -66° | 15% | 1.3m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 53% | 1% | 0% | 90% | -53° | 53% | 1.1m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 24% | 0% | 0% | 91% | -39° | 24% | 1.1m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 11% | 1% | 1% | 92% | -25° | 12% | 1.4m/s |
| Night | 0W/m² | 0W/m² | Unavailable | 8% | 3% | 2% | 92% | -11° | 11% | 1.4m/s |
How this forecast is evaluated
See which weather signals PhotoWeather uses to identify Golden Hour conditions across Vietnam. The requirements and hourly values above show how those signals apply at Ha Long Bay.
Explore Golden Hour conditions across Vietnam →Recorded match history
Completed PhotoWeather forecast matches recorded for this exact rule at Ha Long Bay during the last 365 days.
Last 30 days
18
recorded matching windows · 69% average confidence
Last 90 days
28
recorded matching windows · 71% average confidence
Last 365 days
80
recorded matching windows · 74% average confidence
Most frequent recorded start hour
18:00 local time, shared by 40 of 80 matches recorded in the last 365 days.
Most represented month
April, with 26 of 80 matches recorded in the last 365 days.
These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.
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How this forecast is made
Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.
The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.
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