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Rule Cloudscapes

Cloudscapes Forecast for Sapa, Vietnam

Sa Pa, Lào Cai Province, Vietnam

Sapa's terrace walls wrap around steep valleys as dense contour lines. Paths, farmhouses, and field workers clarify the scale of cultivated slopes that would otherwise read as an abstract pattern.

Currently

Real-time conditions
Cloud Cover100%
Wind Gusts1.1m/s
Precipitation Chance99%
Air Pressure859.7hPa

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Bangkok
cloudscapes weather icon
Next opportunity
Striking Cloud Drama
Sapa
Tomorrow · 07:00–08:00 · 1h window
Medium confidence
43%
☁️Cloud Drama Score76.6%
Cloud Cover: 100%
Wind Gusts: 3.1m/s
Precipitation Chance: 98%
Air Pressure: 860.3hPa
cloudscapes weather icon
Striking Cloud Drama
Sapa
Tomorrow · 09:00–10:00
☁️Cloud Drama Score:76.7%
Medium
cloudscapes weather icon
Dramatic Cloud Drama
Sapa
Tomorrow · 15:00–17:00
☁️Cloud Drama Score:100%
High
cloudscapes weather icon
Striking Cloud Drama at Sunset
Sapa
Tomorrow · 17:00–18:00
☁️Cloud Drama Score:75.5%
Medium
cloudscapes weather icon
Dramatic Cloud Drama at Sunrise
Sapa
Thu, Aug 27 · 05:00–07:00
☁️Cloud Drama Score:88.4-97.5%
High
cloudscapes weather icon
Dramatic Cloud Drama
Sapa
Thu, Aug 27 · 08:00–10:00
☁️Cloud Drama Score:78.2-86.2%
Low
cloudscapes weather icon
Dramatic Cloud Drama
Sapa
Fri, Aug 28 · 08:00–09:00
☁️Cloud Drama Score:86.2%
Medium
+1 more windows in the next 14 days

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Cloudscapes conditions across Vietnam. The requirements and hourly values below show how those signals apply at Sapa.

Explore Cloudscapes conditions across Vietnam →

Recorded match history

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

Last 30 days
54
recorded matching windows · 71% average confidence
Last 90 days
91
recorded matching windows · 68% average confidence
Last 365 days
128
recorded matching windows · 66% average confidence
Most frequent recorded start hour

05:00 local time, shared by 18 of 128 matches recorded in the last 365 days.

Most represented month

August, with 41 of 128 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
5matching hours in the next 85 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Bangkok
Cloud Drama Score
≥ 75.0%
Sat, Aug 22
12:0026%
13:0038%
14:0027%
15:0038%
16:0036%
17:0041%
18:0065%
19:0052%
20:006%
21:001.2%
22:000.1%
23:001%
Sun, Aug 23
24:000.9%
01:002.1%
02:001.1%
03:000.4%
04:000.5%
05:0060%
06:0061%
07:0061%
08:0054%
09:0055%
10:0060%
11:0047%
12:0044%
13:0041%
14:0040%
15:0054%
16:0053%
17:0060%
18:0060%
19:0061%
20:004.2%
21:003.6%
22:003.9%
23:006.2%
Mon, Aug 24
24:009.5%
01:008.6%
02:009.1%
03:0010%
04:0011%
05:0070%
06:0069%
07:0077%
08:0059%
09:0077%
10:0058%
11:0060%
12:0067%
13:0073%
14:0043%
15:00100%
16:00100%
17:0076%
18:0043%
19:0033%
20:009.3%
21:006.6%
22:009.4%
23:008.4%
Tue, Aug 25
24:005.6%
01:003.6%
02:000.7%
03:001.5%
04:002.4%
05:0064%
06:0066%
07:0066%
08:0053%
09:0053%
10:0045%
11:0033%
12:0033%
13:0033%
14:0035%
15:0047%
16:0055%
17:0062%
18:0060%
19:0060%
20:000%
21:000%
22:000%
23:000%
Wed, Aug 26
24:000%
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Cloud Drama Score 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
Air Pressure
hPa
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
Precipitation Chance
%
Relative Humidity
%
Solar Elevation
°
Total Cloud Coverage
%
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Sun, Aug 23 Sunrise 05:44 Sunset 18:30
03:00
860hPa 100% 38% 98% 99% 96% -36° 100% 11495m 1.1m/s 1.1m/s
04:00
860hPa 100% 71% 100% 98% 95% -24° 100% 16830m 0.94m/s 0.98m/s
05:00
860hPa 100% 86% 100% 98% 97% -11° 100% 11369m 1.1m/s 1.3m/s
06:00
861hPa 100% 74% 100% 99% 99% 2.9° 100% 8090m 1.3m/s 1.2m/s
07:00
861hPa 100% 74% 100% 99% 99% 16° 100% 10950m 2m/s 1.5m/s
08:00
862hPa 100% 60% 100% 98% 98% 30° 100% 10653m 1.6m/s 1.2m/s
09:00
862hPa 100% 64% 100% 96% 98% 44° 100% 11863m 1.5m/s 0.81m/s
10:00
862hPa 100% 34% 100% 95% 99% 58° 100% 22944m 2.6m/s 1.3m/s
11:00
862hPa 97% 32% 76% 97% 97% 71° 97% 22922m 2.3m/s 1.3m/s
12:00
861hPa 100% 29% 58% 98% 80% 79° 100% 16385m 2.2m/s 1.5m/s
13:00
860hPa 100% 26% 97% 99% 82% 73° 100% 8252m 2.7m/s 1.5m/s
14:00
860hPa 100% 31% 87% 96% 96% 61° 100% 8232m 2.4m/s 1.1m/s
15:00
859hPa 100% 22% 85% 93% 97% 47° 100% 12494m 2.3m/s 1.1m/s
16:00
859hPa 100% 32% 100% 90% 97% 34° 100% 16683m 2.3m/s 1.2m/s
17:00
859hPa 100% 76% 100% 92% 97% 20° 100% 8440m 2.1m/s 1.8m/s
18:00
859hPa 100% 100% 100% 94% 96% 6.1° 100% 11388m 1.5m/s 1.7m/s
19:00
859hPa 100% 99% 100% 96% 96% -7.5° 100% 23570m 1.5m/s 1.8m/s
20:00
860hPa 100% 100% 100% 88% 97% -21° 100% 19924m 2.1m/s 2.1m/s
21:00
860hPa 100% 97% 87% 80% 97% -33° 100% 18622m 2.2m/s 2.3m/s
22:00
861hPa 100% 100% 100% 72% 97% -44° 100% 22465m 2.8m/s 2.3m/s
23:00
861hPa 100% 100% 100% 77% 97% -53° 100% 22088m 3.1m/s 2.4m/s
Mon, Aug 24 Sunrise 05:44 Sunset 18:29
24:00
860hPa 100% 100% 98% 81% 98% -56° 100% 22554m 3.2m/s 2.4m/s
01:00
859hPa 100% 99% 84% 85% 97% -54° 100% 24135m 3.2m/s 2.4m/s
02:00
859hPa 100% 99% 87% 89% 97% -47° 100% 24134m 3.1m/s 2.3m/s
03:00
859hPa 100% 95% 85% 93% 97% -36° 100% 20945m 3.1m/s 2.3m/s
04:00
859hPa 87% 80% 47% 98% 97% -24° 96% 17957m 2.9m/s 2.2m/s
05:00
859hPa 84% 66% 30% 98% 97% -11° 90% 21310m 2.9m/s 2.1m/s
06:00
860hPa 77% 97% 50% 98% 97% 2.9° 98% 17434m 2.9m/s 2.2m/s
07:00
860hPa 53% 100% 82% 98% 96% 16° 100% 19401m 3.1m/s 2.1m/s
08:00
861hPa 69% 100% 86% 94% 97% 30° 100% 12342m 2.5m/s 2m/s
09:00
861hPa 27% 100% 61% 90% 98% 44° 100% 15440m 2.6m/s 2m/s
10:00
861hPa 90% 100% 60% 86% 97% 58° 100% 10703m 2.5m/s 2m/s
11:00
861hPa 48% 98% 44% 89% 97% 70° 99% 8250m 2.8m/s 1.9m/s
12:00
860hPa 47% 47% 1% 92% 96% 79° 59% 12597m 2.8m/s 1.8m/s
13:00
859hPa 40% 24% 1% 94% 82% 73° 40% 11865m 2.2m/s 1.2m/s
14:00
859hPa 83% 16% 2% 94% 77% 61° 83% 9638m 2.3m/s 0.85m/s
15:00
858hPa 37% 42% 21% 93% 82% 47° 67% 7217m 2.2m/s 0.92m/s
16:00
859hPa 37% 51% 36% 93% 94% 33° 56% 8789m 2.4m/s 1.2m/s
17:00
859hPa 78% 26% 7% 95% 96% 20° 78% 12137m 1.9m/s 1.4m/s
18:00
859hPa 83% 4% 6% 96% 96% 5.9° 83% 15754m 1.9m/s 1.8m/s
19:00
860hPa 93% 1% 5% 98% 97% -7.8° 93% 22768m 1.5m/s 2m/s
20:00
860hPa 100% 12% 5% 94% 96% -21° 100% 24134m 1.5m/s 1.9m/s
21:00
861hPa 100% 46% 23% 89% 96% -33° 100% 24135m 1.4m/s 1.9m/s
22:00
862hPa 80% 81% 70% 85% 95% -44° 81% 24134m 1.3m/s 1.7m/s
23:00
861hPa 45% 84% 84% 87% 94% -53° 87% 24135m 1.2m/s 1.4m/s
Tue, Aug 25 Sunrise 05:45 Sunset 18:28
24:00
861hPa 96% 54% 53% 89% 93% -57° 96% 24134m 1m/s 1.2m/s
01:00
860hPa 100% 24% 28% 90% 93% -54° 100% 24135m 0.82m/s 0.93m/s
02:00
860hPa 100% 0% 44% 80% 94% -47° 100% 24134m 0.61m/s 0.64m/s
03:00
860hPa 100% 0% 53% 69% 94% -36° 100% 24134m 0.63m/s 0.56m/s
04:00
860hPa 100% 3% 34% 59% 95% -24° 100% 24134m 0.7m/s 0.74m/s
05:00
860hPa 100% 20% 68% 70% 95% -11° 100% 24135m 0.71m/s 0.67m/s
06:00
861hPa 100% 28% 97% 81% 95% 2.8° 100% 22047m 0.81m/s 0.82m/s
07:00
861hPa 74% 37% 100% 93% 96% 16° 100% 14459m 0.73m/s 0.69m/s
08:00
890hPa 82% 27% 100% 94% 94% 30° 100% 17684m 0.76m/s 0.7m/s
09:00
919hPa 91% 17% 100% 96% 91% 44° 100% 20909m 0.79m/s 0.71m/s
10:00
948hPa 100% 7% 100% 98% 88% 58° 100% 24135m 0.82m/s 0.73m/s
11:00
949hPa 99% 5% 84% 97% 88% 70° 99% 22906m 0.79m/s 0.7m/s
12:00
949hPa 98% 3% 68% 97% 89% 78° 98% 21678m 0.77m/s 0.67m/s
13:00
949hPa 96% 2% 52% 97% 89% 73° 96% 20449m 0.75m/s 0.64m/s
14:00
950hPa 95% 4% 40% 96% 91% 61° 95% 19730m 0.81m/s 0.75m/s
15:00
951hPa 93% 8% 28% 95% 93% 47° 93% 19010m 0.87m/s 0.86m/s
16:00
951hPa 92% 10% 16% 94% 95% 33° 92% 18291m 0.93m/s 0.96m/s
17:00
951hPa 95% 27% 28% 95% 96% 19° 95% 18060m 1.2m/s 0.99m/s
18:00
951hPa 97% 44% 39% 97% 97% 5.7° 97% 17830m 1.4m/s 1m/s
19:00
950hPa 100% 61% 51% 98% 97% -8° 100% 17599m 1.6m/s 1m/s
20:00
950hPa 99% 70% 59% 92% 98% -21° 99% 16138m 1.2m/s 0.73m/s
21:00
950hPa 98% 79% 66% 86% 98% -34° 98% 14677m 0.77m/s 0.43m/s
22:00
950hPa 97% 88% 74% 80% 98% -45° 97% 13216m 0.33m/s 0.13m/s
23:00
951hPa 98% 90% 81% 79% 99% -53° 98% 11309m 0.3m/s 0.12m/s
Wed, Aug 26 Sunrise 05:45 Sunset 18:27
24:00
951hPa 99% 92% 87% 78% 99% -57° 99% 9401m 0.27m/s 0.11m/s
01:00
952hPa 100% 94% 94% 77% 99% -55° 100% 7494m 0.24m/s 0.1m/s
02:00
952hPa 100% 74% 79% 77% 98% -47° 100% 6638m 0.38m/s 0.27m/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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