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Rule Fog Hunter

Fog Hunter Forecast for Hanoi, Vietnam

Hanoi, Hanoi, Vietnam

The view layers Hanoi's scooters, narrow facades and overhead wires along Old Quarter streets, or use lakeside trees to frame temples and colonial buildings.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread0.8°C
Visibility9793 (Moderate)
Relative Humidity95%
Wind Speed5.7m/s (moderate winds)

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)

  • Fog Probability100% of hours

How this forecast is evaluated

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

Explore Fog Hunter conditions across Vietnam →

Recorded match history

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

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
0
recorded matching windows

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
Fog Probability
≥ 75.0%
Sat, Aug 22
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sun, Aug 23
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Mon, Aug 24
24:000%
01:0020%
02:000%
03:0036%
04:0053%
05:0053%
06:0029%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Tue, Aug 25
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
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 Fog Probability 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
Clear Sky Probability (Ensemble)
%
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Solar Elevation
°
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Sun, Aug 23 Sunrise 05:37 Sunset 18:21
03:00 ☾
0% 24°C 0.15mm 95% 0cm -35° 25°C 2.9mm 0.16kPa 9793m 14m/s 5.7m/s
04:00 ☾
0% 24°C 1.7mm 96% 0cm -23° 25°C 4.3mm 0.13kPa 5126m 14m/s 5.8m/s
05:00 ☾
0% 24°C 3.5mm 97% 0cm -9.3° 24°C 7.2mm 0.09kPa 3957m 13m/s 4.7m/s
06:00 ☾
0% 24°C 2.5mm 98% 0cm 4.4° 24°C 11mm 0.07kPa 4381m 12m/s 4.3m/s
07:00
0% 24°C 4mm 98% 0cm 18° 24°C 15mm 0.05kPa 3494m 11m/s 4.8m/s
08:00
0% 24°C 11mm 98% 0cm 32° 24°C 8.9mm 0.05kPa 2297m 13m/s 6.1m/s
09:00
0% 24°C 26mm 98% 0cm 46° 24°C 29mm 0.05kPa 1107m 13m/s 7.2m/s
10:00
0% 24°C 23mm 98% 0cm 60° 24°C 50mm 0.07kPa 1365m 14m/s 7.7m/s
11:00
0% 24°C 21mm 98% 0cm 73° 24°C 75mm 0.05kPa 1566m 15m/s 7.5m/s
12:00
0% 24°C 19mm 97% 0cm 80° 24°C 93mm 0.09kPa 1863m 15m/s 8.1m/s
13:00
0% 24°C 18mm 97% 0cm 73° 24°C 110mm 0.1kPa 1800m 15m/s 8m/s
14:00
0% 24°C 10mm 97% 0cm 60° 25°C 14mm 0.1kPa 2308m 13m/s 6.6m/s
15:00
0% 24°C 6.9mm 97% 0cm 46° 25°C 23mm 0.11kPa 2516m 12m/s 6m/s
16:00
0% 24°C 1.5mm 97% 0cm 32° 25°C 28mm 0.1kPa 4653m 10m/s 5.1m/s
17:00
0% 24°C 0.2mm 96% 0cm 18° 25°C 30mm 0.11kPa 9450m 9.2m/s 4.8m/s
18:00
0% 24°C 0.07mm 96% 0cm 4.1° 25°C 31mm 0.13kPa 17132m 7.5m/s 4.1m/s
19:00 ☾
0% 24°C 0.01mm 96% 0cm -9.7° 25°C 32mm 0.13kPa 22604m 7.4m/s 4.3m/s
20:00 ☾
0% 24°C 0mm 96% 0cm -23° 25°C 0.13mm 0.13kPa 24135m 7.5m/s 3.9m/s
21:00 ☾
0% 24°C 0mm 95% 0cm -35° 25°C 0.13mm 0.15kPa 24134m 7.1m/s 3.4m/s
22:00 ☾
0% 24°C 0.01mm 95% 0cm -46° 25°C 0.19mm 0.15kPa 24135m 7.3m/s 3.4m/s
23:00 ☾
0% 24°C 0mm 96% 0cm -55° 25°C 0.25mm 0.13kPa 24135m 7.4m/s 3.5m/s
Mon, Aug 24 Sunrise 05:37 Sunset 18:20
24:00 ☾
0% 24°C 0.03mm 96% 0cm -58° 25°C 0.25mm 0.12kPa 22272m 7.7m/s 3.6m/s
01:00 ☾
0% 24°C 0.16mm 96% 0cm -54° 25°C 0.44mm 0.11kPa 21468m 7.8m/s 3.6m/s
02:00 ☾
0% 24°C 0.04mm 96% 0cm -46° 25°C 0.13mm 0.13kPa 21435m 7.8m/s 4m/s
03:00 ☾
0% 24°C 0mm 96% 0cm -35° 25°C 0.19mm 0.11kPa 24134m 7m/s 4m/s
04:00 ☾
0% 24°C 0mm 96% 0cm -23° 24°C 0.19mm 0.11kPa 24134m 6.4m/s 3.5m/s
05:00 ☾
0% 24°C 0mm 97% 0cm -9.4° 24°C 0.19mm 0.1kPa 23713m 5.2m/s 2.4m/s
06:00 ☾
0% 24°C 0mm 97% 0cm 4.4° 24°C 0.25mm 0.1kPa 24041m 4m/s 1.9m/s
07:00
0% 24°C 0mm 93% 0cm 18° 25°C 0.31mm 0.23kPa 22960m 4.1m/s 2.1m/s
08:00
0% 24°C 0mm 87% 0cm 32° 27°C 0.19mm 0.45kPa 24134m 3.4m/s 2m/s
09:00
0% 24°C 0mm 80% 0cm 46° 28°C 0.38mm 0.75kPa 24134m 3m/s 1.8m/s
10:00
0% 24°C 0mm 74% 0cm 60° 29°C 0.56mm 1.1kPa 22239m 2.4m/s 1.4m/s
11:00
0% 24°C 0mm 69% 0cm 73° 31°C 1.1mm 1.4kPa 21176m 2.2m/s 1.5m/s
12:00
0% 25°C 0mm 69% 0cm 80° 31°C 2.2mm 1.4kPa 7356m 2m/s 1.8m/s
13:00
0% 25°C 0mm 71% 0cm 72° 31°C 3.6mm 1.3kPa 5870m 1.8m/s 1.3m/s
14:00
0% 25°C 0mm 71% 0cm 59° 31°C 1.6mm 1.3kPa 6090m 1.4m/s 1.1m/s
15:00
0% 25°C 0mm 73% 0cm 46° 31°C 3.7mm 1.2kPa 7589m 1.7m/s 1.6m/s
16:00
0% 26°C 0mm 76% 0cm 32° 30°C 5.4mm 1kPa 14838m 1.9m/s 1.8m/s
17:00
0% 26°C 0mm 80% 0cm 18° 30°C 6.4mm 0.84kPa 24134m 1.9m/s 1.7m/s
18:00
0% 26°C 0mm 87% 0cm 3.9° 28°C 8.4mm 0.5kPa 3588m 2.1m/s 1.7m/s
19:00 ☾
0% 25°C 0mm 92% 0cm -9.9° 27°C 12mm 0.29kPa 6858m 2.4m/s 1.9m/s
20:00 ☾
0% 25°C 0mm 92% 0cm -23° 26°C 2mm 0.26kPa 12266m 3.2m/s 2.3m/s
21:00 ☾
0% 25°C 0mm 92% 0cm -36° 26°C 2.6mm 0.28kPa 24135m 2.5m/s 1.9m/s
22:00 ☾
0% 25°C 0mm 91% 0cm -47° 26°C 2.6mm 0.29kPa 24134m 1.7m/s 1.6m/s
23:00 ☾
0% 25°C 0mm 91% 0cm -55° 26°C 2.6mm 0.29kPa 24135m 1.3m/s 1.3m/s
Tue, Aug 25 Sunrise 05:38 Sunset 18:19
24:00 ☾
0% 24°C 0mm 92% 0cm -58° 26°C 2.6mm 0.27kPa 24134m 1.5m/s 1.4m/s
01:00 ☾
0% 24°C 0mm 92% 0cm -55° 26°C 2.7mm 0.25kPa 17369m 1.1m/s 1m/s
02:00 ☾
1% 24°C 0mm 95% 0cm -46° 25°C 0.63mm 0.17kPa 17775m 0.71m/s 0.65m/s
03:00 ☾
2% 24°C 0mm 94% 0cm -35° 25°C 1.3mm 0.18kPa 17755m 0.23m/s 0.14m/s
04:00 ☾
3% 24°C 0mm 95% 0cm -23° 25°C 2.1mm 0.16kPa 9379m 0.4m/s 0.39m/s
05:00 ☾
2% 24°C 0mm 95% 0cm -9.5° 25°C 2.4mm 0.17kPa 21873m 1.1m/s 1.1m/s
06:00 ☾
2% 24°C 0mm 95% 0cm 4.3° 25°C 2.6mm 0.17kPa 24134m 1.7m/s 1.5m/s
07:00
1% 25°C 0mm 94% 0cm 18° 25°C 2.8mm 0.18kPa 16458m 2.4m/s 1.6m/s
08:00
2% 25°C 0mm 89% 0cm 32° 27°C 3.8mm 0.4kPa 13253m 3m/s 2m/s
09:00
3% 26°C 0mm 83% 0cm 46° 29°C 4.9mm 0.67kPa 10049m 3.6m/s 2.4m/s
10:00
4% 27°C 0mm 78% 0cm 60° 31°C 5.9mm 0.99kPa 6844m 4.1m/s 2.8m/s
11:00
4% 26°C 0.16mm 82% 0cm 73° 30°C 7.5mm 0.75kPa 12608m 4.1m/s 2.7m/s
12:00
3% 26°C 0.33mm 86% 0cm 80° 29°C 9.1mm 0.54kPa 18371m 4.1m/s 2.6m/s
13:00
3% 26°C 0.49mm 90% 0cm 72° 27°C 11mm 0.35kPa 24135m 4.1m/s 2.5m/s
14:00
3% 26°C 0.33mm 91% 0cm 59° 27°C 8.3mm 0.33kPa 20379m 3.3m/s 2.1m/s
15:00
4% 25°C 0.16mm 91% 0cm 45° 27°C 5.9mm 0.3kPa 16624m 2.4m/s 1.8m/s
16:00
4% 25°C 0mm 92% 0cm 31° 27°C 3.5mm 0.28kPa 12868m 1.5m/s 1.4m/s
17:00
4% 25°C 0.22mm 93% 0cm 17° 26°C 5mm 0.24kPa 10612m 1.6m/s 1.4m/s
18:00
3% 25°C 0.44mm 94% 0cm 3.7° 26°C 6.5mm 0.2kPa 8355m 1.7m/s 1.5m/s
19:00 ☾
3% 25°C 0.66mm 95% 0cm -10° 26°C 7.9mm 0.17kPa 6099m 1.8m/s 1.5m/s
20:00 ☾
3% 25°C 0.51mm 95% 0cm -23° 26°C 6.1mm 0.16kPa 10737m 3.1m/s 1.9m/s
21:00 ☾
3% 25°C 0.35mm 95% 0cm -36° 26°C 4.2mm 0.15kPa 15376m 4.4m/s 2.2m/s
22:00 ☾
3% 25°C 0.2mm 96% 0cm -47° 26°C 2.3mm 0.15kPa 20014m 5.7m/s 2.6m/s
23:00 ☾
3% 25°C 0.3mm 96% 0cm -55° 26°C 2.7mm 0.13kPa 17908m 5.7m/s 2.7m/s
Wed, Aug 26 Sunrise 05:38 Sunset 18:18
24:00 ☾
4% 25°C 0.4mm 96% 0cm -58° 25°C 3.1mm 0.12kPa 15802m 5.6m/s 2.8m/s
01:00 ☾
4% 25°C 0.5mm 97% 0cm -55° 25°C 3.4mm 0.1kPa 13695m 5.5m/s 3m/s
02:00 ☾
4% 25°C 0.54mm 96% 0cm -47° 25°C 3mm 0.11kPa 15033m 6.3m/s 3.6m/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.

How opportunities work → Weather data sources →
Forecast generated

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