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Rule Golden Hour

Golden Hour Forecast for Mu Cang Chai, Vietnam

Mù Cang Chải, Yên Bái Province, Vietnam

The view traces Mu Cang Chai's tightly curved terrace walls across steep slopes, using isolated huts, paths and farmers as scale within the field patterns.

Currently

Real-time conditions
Low Cloud Cover32%
Mid Cloud Cover94%
High Cloud Cover100%
Sun Elevation-35.9° (Astronomical night)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Bangkok

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (85-hour forecast)

  • Golden Hour Potential100% of hours
  • Precipitation Chance100% of hours
  • Golden Hour83% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Golden Hour conditions across Vietnam. The requirements and hourly values below show how those signals apply at Mu Cang Chai.

Explore Golden Hour conditions across Vietnam →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Mu Cang Chai during the last 365 days.

Last 30 days
1
recorded matching window · 58% average confidence
Last 90 days
3
recorded matching windows · 66% average confidence
Last 365 days
38
recorded matching windows · 79% average confidence
Most frequent recorded start hour

06:00 local time, shared by 19 of 38 matches recorded in the last 365 days.

Most represented month

April, with 26 of 38 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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85-hour requirements breakdown

When available, the detailed table below covers only the stated 85-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
0matching hours in the next 85 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
Sat, Aug 22
12:0015%100%15422m
13:0020%100%13546m
14:0017%99%22731m
15:0020%98%24135m
16:0018%98%24135m
17:0057%99%24134m
18:0058%99%22371m
19:0018%100%21081m
20:0024%100%4535m
21:0020%100%3543m
22:0017%100%20944m
23:0014%100%13277m
Sun, Aug 23
24:0015%100%15203m
01:0012%100%3914m
02:0014%100%5337m
03:0014%100%12473m
04:0014%99%4435m
05:0045%100%13251m
06:0047%100%19516m
07:0011%100%6380m
08:0014%100%7284m
09:0014%100%8497m
10:0014%100%20509m
11:0012%100%14211m
12:0014%100%10321m
13:0015%100%5372m
14:0014%97%24135m
15:0014%95%14647m
16:0014%92%13232m
17:0045%94%12078m
18:0041%96%5182m
19:0014%97%6795m
20:0014%96%12581m
21:0014%96%17938m
22:0014%95%13331m
23:0014%96%10284m
Mon, Aug 24
24:0014%97%9053m
01:0015%98%5251m
02:0014%99%6012m
03:0012%99%5676m
04:0011%100%5288m
05:0030%100%2494m
06:0035%100%7290m
07:0011%100%13085m
08:0012%100%8547m
09:009%99%4425m
10:0011%99%6559m
11:0013%99%6773m
12:0020%100%8364m
13:0022%100%7023m
14:0020%97%14771m
15:0020%93%14111m
16:0021%90%16412m
17:0060%93%9841m
18:0055%95%4972m
19:0024%97%5034m
20:0020%93%15416m
21:0014%89%24135m
22:0014%85%14656m
23:0014%86%12704m
Tue, Aug 25
24:0015%88%15934m
01:0021%90%17379m
02:0021%93%19982m
03:0024%96%24134m
04:0021%100%24134m
05:0073%100%24135m
06:0054%100%23055m
07:0015%100%15438m
08:000%100%14778m
09:000%100%14119m
10:000%100%13459m
11:000%100%17018m
12:000%100%20576m
13:000%100%24135m
14:000%97%24135m
15:000%95%24135m
16:000%93%24135m
17:0055%94%24135m
18:0049%96%24135m
19:000%98%24135m
20:000%94%24135m
21:000%89%24135m
22:000%85%24135m
23:000%82%16189m
Wed, Aug 26
24:000%78%8242m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Golden Hour Potential mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Asia/Bangkok
Golden Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
Relative Humidity
%
Solar Elevation
°
Total Cloud Coverage
%
Wind Speed
m/s
Sun, Aug 23 Sunrise 05:43 Sunset 18:29
03:00
- 100% 32% 94% 98% -36° 100% 0.8m/s
04:00
- 100% 69% 92% 98% -24° 100% 1.2m/s
05:00
- 100% 45% 100% 99% -11° 100% 0.63m/s
06:00
- 100% 66% 100% 99% 100% 0.93m/s
07:00
- 99% 68% 100% 100% 17° 100% 1.1m/s
08:00
- 100% 79% 100% 100% 30° 100% 0.93m/s
09:00
- 100% 90% 99% 100% 44° 100% 1.2m/s
10:00
- 100% 46% 100% 99% 58° 100% 1.1m/s
11:00
- 100% 62% 84% 98% 71° 100% 1.4m/s
12:00
- 100% 64% 100% 92% 79° 100% 1.5m/s
13:00
- 100% 46% 61% 96% 73° 100% 1.3m/s
14:00
- 100% 71% 93% 90% 61° 100% 1.5m/s
15:00
- 100% 59% 98% 92% 47° 100% 1.2m/s
16:00
- 100% 100% 100% 96% 33° 100% 1.1m/s
17:00
- 100% 92% 98% 98% 19° 100% 0.97m/s
18:00
- 100% 100% 100% 99% 5.8° 100% 1.2m/s
19:00
- 100% 100% 100% 99% -7.9° 100% 1.6m/s
20:00
- 100% 100% 100% 99% -21° 100% 1.7m/s
21:00
- 100% 100% 100% 99% -34° 100% 1.5m/s
22:00
- 100% 100% 100% 99% -45° 100% 1.8m/s
23:00
- 100% 100% 100% 99% -53° 100% 1.7m/s
Mon, Aug 24 Sunrise 05:44 Sunset 18:28
24:00
- 100% 100% 100% 99% -57° 100% 1.6m/s
01:00
- 100% 100% 100% 99% -54° 100% 1.6m/s
02:00
- 100% 100% 100% 99% -47° 100% 1.5m/s
03:00
- 100% 100% 100% 99% -36° 100% 1.7m/s
04:00
- 91% 100% 100% 99% -24° 100% 1.6m/s
05:00
- 100% 100% 73% 99% -11° 100% 1.8m/s
06:00
- 100% 100% 80% 99% 100% 1.7m/s
07:00
- 96% 100% 10% 98% 17° 100% 1.7m/s
08:00
- 54% 92% 15% 98% 30° 92% 1.6m/s
09:00
- 56% 92% 8% 97% 44° 92% 1.2m/s
10:00
- 30% 49% 4% 96% 58° 49% 0.89m/s
11:00
- 64% 38% 0% 91% 71° 65% 0.22m/s
12:00
- 10% 30% 0% 88% 79° 30% 0.31m/s
13:00
- 62% 24% 1% 88% 73° 62% 0.25m/s
14:00
- 46% 23% 1% 89% 61° 51% 0.16m/s
15:00
- 45% 15% 4% 90% 47° 45% 0.17m/s
16:00
- 77% 8% 2% 94% 33° 77% 0.45m/s
17:00
- 83% 3% 2% 96% 19° 83% 0.71m/s
18:00
- 99% 8% 4% 97% 5.6° 99% 1.6m/s
19:00
- 100% 7% 5% 98% -8.1° 100% 1.9m/s
20:00
- 100% 8% 6% 98% -21° 100% 1.8m/s
21:00
- 97% 69% 15% 97% -34° 97% 1.7m/s
22:00
- 87% 100% 77% 98% -45° 100% 1.7m/s
23:00
- 100% 94% 86% 98% -53° 100% 1.5m/s
Tue, Aug 25 Sunrise 05:44 Sunset 18:27
24:00
- 98% 76% 84% 98% -57° 98% 1.5m/s
01:00
- 100% 50% 65% 97% -55° 100% 1.1m/s
02:00
- 100% 24% 59% 98% -47° 100% 0.84m/s
03:00
- 100% 7% 28% 98% -36° 100% 0.46m/s
04:00
- 100% 11% 56% 98% -24° 100% 0.69m/s
05:00
- 64% 9% 16% 98% -11° 64% 0.76m/s
06:00
- 100% 25% 5% 99% 2.9° 100% 0.53m/s
07:00
- 100% 48% 27% 98% 17° 100% 0.19m/s
08:00
- 100% 35% 30% 96% 30° 100% 0.61m/s
09:00
- 100% 21% 32% 93% 44° 100% 1m/s
10:00
- 100% 8% 35% 90% 58° 100% 1.4m/s
11:00
- 99% 5% 53% 92% 71° 100% 1.3m/s
12:00
- 98% 3% 70% 93% 79° 100% 1.1m/s
13:00
- 98% 1% 88% 95% 73° 100% 0.97m/s
14:00
- 98% 1% 69% 95% 61° 100% 0.97m/s
15:00
- 99% 1% 51% 94% 47° 100% 0.98m/s
16:00
- 100% 1% 32% 94% 33° 100% 0.99m/s
17:00
- 100% 11% 50% 93% 19° 100% 0.8m/s
18:00
- 100% 22% 68% 93% 5.4° 100% 0.6m/s
19:00
- 100% 32% 86% 92% -8.3° 100% 0.4m/s
20:00
- 87% 54% 80% 93% -22° 99% 0.76m/s
21:00
- 73% 75% 73% 94% -34° 98% 1.1m/s
22:00
- 60% 97% 67% 95% -45° 97% 1.5m/s
23:00
- 73% 98% 78% 96% -54° 98% 1.4m/s
Wed, Aug 26 Sunrise 05:44 Sunset 18:26
24:00
- 87% 99% 89% 98% -58° 99% 1.4m/s
01:00
- 100% 100% 100% 100% -55° 100% 1.4m/s
02:00
- 100% 100% 100% 99% -47° 100% 1.1m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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.

Forecast generated

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