Rule
Cloudscapes
Cloudscapes Forecast for Phong Nha, Vietnam
Dong Hoi, Quảng Bình Province, Vietnam
Inside Phong Nha, use people for scale against immense chambers and mineral formations; outside, frame cave mouths beneath jungle-covered karsts.
14 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)Cloud Cover99%
Wind Gusts6.6m/s
Precipitation Chance31%
Air Pressure1015.3hPa
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Asia/Bangkok
First upcoming window
Striking Cloud Drama at Sunrise
Phong Nha
Mon, Oct 12 · 05:00–07:00 · 2h window
Medium confidence
59%
☁️Cloud Drama Score84.5%
Cloud Cover: 45%
Wind Gusts: 5.9m/s
Precipitation Chance: 25%
Air Pressure: 1013.2hPa
Dramatic Cloud Drama
Phong Nha
Mon, Oct 12 · 07:00–11:00
☁️Cloud Drama Score:78.2-100%
Medium
Striking Cloud Drama
Phong Nha
Mon, Oct 12 · 16:00–17:00
☁️Cloud Drama Score:80.6%
Low
Dramatic Cloud Drama at Sunset
Phong Nha
Mon, Oct 12 · 17:00–18:00
☁️Cloud Drama Score:89.7%
Medium
Dramatic Cloud Drama
Phong Nha
Mon, Oct 12 · 18:00–19:00
☁️Cloud Drama Score:94.9%
Medium
Striking Cloud Drama
Phong Nha
Sat, Oct 17 · 10:00–11:00
☁️Cloud Drama Score:77%
Low
Dramatic Cloud Drama
Phong Nha
Sat, Oct 17 · 13:00–17:00
☁️Cloud Drama Score:75.9-85.8%
Low
+7 more windows in the next 14 days
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.
- Cloud Drama Score100% of hours
0matching hours in the displayed 72-hour forecast
AND logic: all conditions required
Meets requirement
Misses requirement
Time Asia/Bangkok | Cloud Drama Score ≥ 75.0% |
|---|---|
| Thu, Oct 8 | |
| Rule fails. 06:00 | Cloud Drama Score: 63%. Misses requirement |
| Rule fails. 07:00 | Cloud Drama Score: 59%. Misses requirement |
| Rule fails. 08:00 | Cloud Drama Score: 50%. Misses requirement |
| Rule fails. 09:00 | Cloud Drama Score: 50%. Misses requirement |
| Rule fails. 10:00 | Cloud Drama Score: 50%. Misses requirement |
| Rule fails. 11:00 | Cloud Drama Score: 38%. Misses requirement |
| Rule fails. 12:00 | Cloud Drama Score: 45%. Misses requirement |
| Rule fails. 13:00 | Cloud Drama Score: 58%. Misses requirement |
| Rule fails. 14:00 | Cloud Drama Score: 54%. Misses requirement |
| Rule fails. 15:00 | Cloud Drama Score: 53%. Misses requirement |
| Rule fails. 16:00 | Cloud Drama Score: 60%. Misses requirement |
| Rule fails. 17:00 | Cloud Drama Score: 57%. Misses requirement |
| Rule fails. 18:00 | Cloud Drama Score: 58%. Misses requirement |
| Rule fails. 19:00 | Cloud Drama Score: 0.1%. Misses requirement |
| Rule fails. 20:00 | Cloud Drama Score: 0.1%. Misses requirement |
| Rule fails. 21:00 | Cloud Drama Score: 0.1%. Misses requirement |
| Rule fails. 22:00 | Cloud Drama Score: 0.3%. Misses requirement |
| Rule fails. 23:00 | Cloud Drama Score: 0.7%. Misses requirement |
| Fri, Oct 9 | |
| Rule fails. 24:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 01:00 | Cloud Drama Score: 2.9%. Misses requirement |
| Rule fails. 02:00 | Cloud Drama Score: 1.4%. Misses requirement |
| Rule fails. 03:00 | Cloud Drama Score: 4.2%. Misses requirement |
| Rule fails. 04:00 | Cloud Drama Score: 0.4%. Misses requirement |
| Rule fails. 05:00 | Cloud Drama Score: 58%. Misses requirement |
| Rule fails. 06:00 | Cloud Drama Score: 58%. Misses requirement |
| Rule fails. 07:00 | Cloud Drama Score: 58%. Misses requirement |
| Rule fails. 08:00 | Cloud Drama Score: 53%. Misses requirement |
| Rule fails. 09:00 | Cloud Drama Score: 52%. Misses requirement |
| Rule fails. 10:00 | Cloud Drama Score: 52%. Misses requirement |
| Rule fails. 11:00 | Cloud Drama Score: 39%. Misses requirement |
| Rule fails. 12:00 | Cloud Drama Score: 38%. Misses requirement |
| Rule fails. 13:00 | Cloud Drama Score: 51%. Misses requirement |
| Rule fails. 14:00 | Cloud Drama Score: 55%. Misses requirement |
| Rule fails. 15:00 | Cloud Drama Score: 54%. Misses requirement |
| Rule fails. 16:00 | Cloud Drama Score: 61%. Misses requirement |
| Rule fails. 17:00 | Cloud Drama Score: 59%. Misses requirement |
| Rule fails. 18:00 | Cloud Drama Score: 59%. Misses requirement |
| Rule fails. 19:00 | Cloud Drama Score: 2.7%. Misses requirement |
| Rule fails. 20:00 | Cloud Drama Score: 5.9%. Misses requirement |
| Rule fails. 21:00 | Cloud Drama Score: 6.1%. Misses requirement |
| Rule fails. 22:00 | Cloud Drama Score: 1.6%. Misses requirement |
| Rule fails. 23:00 | Cloud Drama Score: 4.4%. Misses requirement |
| Sat, Oct 10 | |
| Rule fails. 24:00 | Cloud Drama Score: 1.5%. Misses requirement |
| Rule fails. 01:00 | Cloud Drama Score: 0.4%. Misses requirement |
| Rule fails. 02:00 | Cloud Drama Score: 0.1%. Misses requirement |
| Rule fails. 03:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 04:00 | Cloud Drama Score: 0.7%. Misses requirement |
| Rule fails. 05:00 | Cloud Drama Score: 38%. Misses requirement |
| Rule fails. 06:00 | Cloud Drama Score: 57%. Misses requirement |
| Rule fails. 07:00 | Cloud Drama Score: 58%. Misses requirement |
| Rule fails. 08:00 | Cloud Drama Score: 52%. Misses requirement |
| Rule fails. 09:00 | Cloud Drama Score: 52%. Misses requirement |
| Rule fails. 10:00 | Cloud Drama Score: 51%. Misses requirement |
| Rule fails. 11:00 | Cloud Drama Score: 41%. Misses requirement |
| Rule fails. 12:00 | Cloud Drama Score: 27%. Misses requirement |
| Rule fails. 13:00 | Cloud Drama Score: 57%. Misses requirement |
| Rule fails. 14:00 | Cloud Drama Score: 53%. Misses requirement |
| Rule fails. 15:00 | Cloud Drama Score: 53%. Misses requirement |
| Rule fails. 16:00 | Cloud Drama Score: 40%. Misses requirement |
| Rule fails. 17:00 | Cloud Drama Score: 57%. Misses requirement |
| Rule fails. 18:00 | Cloud Drama Score: 55%. Misses requirement |
| Rule fails. 19:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 20:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 21:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 22:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 23:00 | Cloud Drama Score: 0%. Misses requirement |
| Sun, Oct 11 | |
| Rule fails. 24:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 01:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 02:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 03:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 04:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 05:00 | Cloud Drama Score: 57%. Misses 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) | Air Pressure | High Clouds | Low Clouds | Mid-Level Clouds | Precipitation Chance | Relative Humidity | Solar Elevation | Total Cloud Coverage | Visibility | Wind Gusts | Wind Speed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thu, Oct 8, 2026Sunrise · Sunset | |||||||||||
| 1015hPa | 71% | 81% | 84% | 31% | 86% | 3° | 99% | 9660m | 6.6m/s | 4m/s | |
| 1016hPa | 88% | 73% | 73% | 33% | 83% | 17° | 98% | 7120m | 7.4m/s | 4.2m/s | |
| 1016hPa | 99% | 66% | 53% | 33% | 79% | 31° | 100% | 11300m | 8m/s | 4.5m/s | |
| 1016hPa | 98% | 86% | 24% | 32% | 72% | 44° | 100% | 15880m | 9.3m/s | 4.7m/s | |
| 1016hPa | 96% | 95% | 100% | 33% | 71% | 56° | 100% | 20340m | 9.3m/s | 4.5m/s | |
| 1016hPa | 85% | 100% | 100% | 38% | 72% | 65° | 100% | 20340m | 9m/s | 4.2m/s | |
| 1014hPa | 94% | 100% | 100% | 46% | 74% | 66° | 100% | 5680m | 11m/s | 5.8m/s | |
| 1013hPa | 98% | 90% | 93% | 55% | 77% | 60° | 100% | 11140m | 11m/s | 5.5m/s | |
| 1012hPa | 89% | 41% | 64% | 66% | 75% | 49° | 98% | 6360m | 11m/s | 5.9m/s | |
| 1012hPa | 90% | 80% | 43% | 79% | 75% | 36° | 98% | 7020m | 12m/s | 5.9m/s | |
| 1012hPa | 95% | 54% | 38% | 88% | 77% | 22° | 98% | 5620m | 11m/s | 5.3m/s | |
| 1012hPa | 100% | 23% | 17% | 92% | 82% | 8° | 100% | 5400m | 9.7m/s | 5m/s | |
| Night | 1012hPa | 96% | 60% | 35% | 93% | 89% | -6.2° | 99% | 5000m | 8.6m/s | 4.3m/s |
| Night | 1013hPa | 90% | 23% | 5% | 90% | 89% | -21° | 93% | 5880m | 7.4m/s | 4.2m/s |
| Night | 1013hPa | 57% | 11% | 0% | 82% | 88% | -35° | 62% | 10840m | 6.9m/s | 3.8m/s |
| Night | 1013hPa | 15% | 7% | 0% | 71% | 89% | -49° | 21% | 14340m | 6.3m/s | 3.5m/s |
| Night | 1013hPa | 63% | 23% | 22% | 61% | 86% | -63° | 77% | 17380m | 6.1m/s | 3.7m/s |
| Night | 1013hPa | 73% | 57% | 98% | 53% | 86% | -75° | 100% | 4120m | 6.8m/s | 3.9m/s |
| Fri, Oct 9, 2026Sunrise · Sunset | |||||||||||
| Night | 1013hPa | 67% | 98% | 100% | 46% | 92% | -78° | 100% | 2700m | 6.6m/s | 3.2m/s |
| Night | 1012hPa | 79% | 100% | 82% | 45% | 94% | -68° | 100% | 3340m | 6.2m/s | 3.8m/s |
| Night | 1011hPa | 98% | 98% | 100% | 54% | 95% | -54° | 100% | 2000m | 7.7m/s | 4.4m/s |
| Night | 1011hPa | 85% | 100% | 100% | 68% | 95% | -40° | 100% | 2480m | 7.5m/s | 4.2m/s |
| Night | 1011hPa | 95% | 100% | 100% | 80% | 96% | -26° | 100% | 1460m | 8.4m/s | 4.7m/s |
| Night | 1011hPa | 95% | 100% | 86% | 85% | 96% | -12° | 100% | 1680m | 8.2m/s | 4.3m/s |
| 1011hPa | 99% | 100% | 23% | 88% | 95% | 2.9° | 100% | 2280m | 7.7m/s | 4.3m/s | |
| 1012hPa | 99% | 100% | 65% | 90% | 95% | 17° | 100% | 2700m | 7.5m/s | 3.4m/s | |
| 1012hPa | 98% | 100% | 100% | 94% | 95% | 31° | 100% | 1780m | 7.7m/s | 4.2m/s | |
| 1013hPa | 100% | 100% | 98% | 97% | 93% | 44° | 100% | 1560m | 7.8m/s | 3.4m/s | |
| 1013hPa | 100% | 100% | 100% | 100% | 94% | 56° | 100% | 1780m | 8m/s | 4m/s | |
| 1012hPa | 100% | 100% | 100% | 100% | 93% | 64° | 100% | 1420m | 8.4m/s | 4.7m/s | |
| 1012hPa | 100% | 100% | 95% | 100% | 94% | 66° | 100% | 1740m | 9.1m/s | 4.7m/s | |
| 1010hPa | 100% | 96% | 100% | 100% | 91% | 59° | 100% | 1960m | 9.6m/s | 5.2m/s | |
| 1010hPa | 99% | 100% | 100% | 100% | 93% | 48° | 100% | 1300m | 11m/s | 5.1m/s | |
| 1009hPa | 99% | 100% | 100% | 99% | 93% | 35° | 100% | 1440m | 9.6m/s | 5m/s | |
| 1009hPa | 98% | 100% | 81% | 98% | 94% | 22° | 100% | 2260m | 9.4m/s | 4.9m/s | |
| 1010hPa | 98% | 100% | 34% | 94% | 94% | 7.9° | 100% | 2820m | 8.7m/s | 4.5m/s | |
| Night | 1010hPa | 98% | 100% | 76% | 89% | 95% | -6.4° | 100% | 2660m | 8.5m/s | 3.6m/s |
| Night | 1011hPa | 99% | 86% | 42% | 86% | 94% | -21° | 100% | 2420m | 7.1m/s | 4m/s |
| Night | 1012hPa | 99% | 100% | 56% | 86% | 92% | -35° | 100% | 2580m | 7.3m/s | 2.1m/s |
| Night | 1012hPa | 96% | 100% | 8% | 87% | 95% | -49° | 100% | 4780m | 4.6m/s | 1.2m/s |
| Night | 1012hPa | 63% | 53% | 81% | 88% | 95% | -63° | 96% | 2540m | 5m/s | 1.9m/s |
| Night | 1012hPa | 91% | 89% | 49% | 88% | 94% | -75° | 99% | 2740m | 4.8m/s | 2.5m/s |
| Sat, Oct 10, 2026Sunrise · Sunset | |||||||||||
| Night | 1012hPa | 77% | 100% | 84% | 88% | 96% | -78° | 100% | 2380m | 4.5m/s | 0.52m/s |
| Night | 1011hPa | 95% | 100% | 22% | 88% | 98% | -68° | 100% | 2680m | 3.2m/s | 0.63m/s |
| Night | 1011hPa | 98% | 100% | 100% | 88% | 99% | -54° | 100% | 1280m | 4.2m/s | 0.92m/s |
| Night | 1011hPa | 98% | 100% | 20% | 88% | 99% | -40° | 100% | 2920m | 5.2m/s | 2.5m/s |
| Night | 1011hPa | 100% | 100% | 69% | 88% | 97% | -26° | 100% | 2420m | 5.2m/s | 2.3m/s |
| Night | 1011hPa | 99% | 100% | 9% | 90% | 96% | -12° | 100% | 3620m | 4m/s | 1.3m/s |
| 1012hPa | 100% | 100% | 97% | 92% | 98% | 2.9° | 100% | 1740m | 3.6m/s | 1.5m/s | |
| 1013hPa | 99% | 100% | 80% | 94% | 96% | 17° | 100% | 2240m | 4.1m/s | 1.8m/s | |
| 1013hPa | 99% | 89% | 59% | 96% | 95% | 30° | 100% | 1880m | 4.7m/s | 2.3m/s | |
| 1014hPa | 98% | 100% | 99% | 99% | 94% | 44° | 100% | 2120m | 6.9m/s | 3.6m/s | |
| 1014hPa | 100% | 82% | 38% | 100% | 93% | 55° | 100% | 2680m | 9.5m/s | 4.8m/s | |
| 1013hPa | 100% | 92% | 45% | 100% | 93% | 64° | 100% | 2760m | 9.9m/s | 4.7m/s | |
| 1013hPa | 100% | 80% | 10% | 99% | 92% | 65° | 100% | 3620m | 9.6m/s | 4m/s | |
| 1012hPa | 99% | 98% | 38% | 98% | 91% | 59° | 100% | 3540m | 9.4m/s | 4.2m/s | |
| 1011hPa | 99% | 91% | 15% | 98% | 87% | 48° | 100% | 5540m | 9m/s | 3.1m/s | |
| 1010hPa | 98% | 92% | 66% | 97% | 90% | 35° | 100% | 2140m | 8.7m/s | 3.7m/s | |
| 1010hPa | 99% | 13% | 9% | 96% | 92% | 22° | 99% | 9800m | 8.8m/s | 1.5m/s | |
| 1011hPa | 100% | 31% | 40% | 94% | 90% | 7.7° | 100% | 5020m | 4.8m/s | 1.9m/s | |
| Night | 1011hPa | 100% | 35% | 13% | 90% | 95% | -6.6° | 100% | 5620m | 3.1m/s | 1.3m/s |
| Night | 1012hPa | 100% | 38% | 42% | 88% | 90% | -21° | 100% | 4140m | 2.5m/s | 0.18m/s |
| Night | 1013hPa | 95% | 79% | 23% | 87% | 95% | -35° | 99% | 6940m | 2.9m/s | 1.3m/s |
| Night | 1014hPa | 59% | 23% | 11% | 86% | 96% | -49° | 70% | 5780m | 3.2m/s | 1.7m/s |
| Night | 1014hPa | 8% | 21% | 8% | 86% | 96% | -63° | 33% | 7220m | 3.5m/s | 2.1m/s |
| Night | 1014hPa | 1% | 32% | 62% | 87% | 94% | -75° | 73% | 3200m | 3.6m/s | 0.83m/s |
| Sun, Oct 11, 2026Sunrise · Sunset | |||||||||||
| Night | 1013hPa | 47% | 66% | 26% | 88% | 94% | -78° | 86% | 5300m | 1.4m/s | 0.87m/s |
| Night | 1013hPa | 73% | 100% | 24% | 88% | 96% | -68° | 100% | 4340m | 2.7m/s | 1.6m/s |
| Night | 1013hPa | 81% | 38% | 47% | 88% | 95% | -54° | 91% | 7220m | 3.9m/s | 2.3m/s |
| Night | 1012hPa | 91% | 66% | 48% | 87% | 96% | -40° | 98% | 2880m | 4.8m/s | 2.4m/s |
| Night | 1012hPa | 96% | 94% | 46% | 84% | 97% | -26° | 100% | 4480m | 5.1m/s | 3.2m/s |
| Night | 1013hPa | 94% | 45% | 37% | 77% | 97% | -12° | 97% | 4980m | 5.7m/s | 3m/s |
How this forecast is evaluated
See which weather signals PhotoWeather uses to identify Cloudscapes conditions across Vietnam. The requirements and hourly values above show how those signals apply at Phong Nha.
Explore Cloudscapes conditions across Vietnam →Recorded match history
Completed PhotoWeather forecast matches recorded for this exact rule at Phong Nha during the last 365 days.
Last 30 days
34
recorded matching windows · 74% average confidence
Last 90 days
70
recorded matching windows · 70% average confidence
Last 365 days
97
recorded matching windows · 68% average confidence
Most frequent recorded start hour
17:00 local time, shared by 15 of 97 matches recorded in the last 365 days.
Most represented month
September, with 34 of 97 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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