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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 Spread3.1°C
Visibility24134 (Clear)
Relative Humidity83%
Wind Speed0.4m/s (calm conditions)

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 (95-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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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-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 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Bangkok
Fog Probability
≥ 75.0%
Mon, Sep 7
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%
Tue, Sep 8
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, Sep 9
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%
Thu, Sep 10
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%
Fri, Sep 11
24:000%
01:000%
02:000%
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
Tue, Sep 8 Sunrise 05:41 Sunset 18:07
05:00 ☾
100% 22°C 0mm 83% 0cm -10° 25°C 0mm 0.54kPa 24134m 0.52m/s 0.42m/s
06:00 ☾
100% 22°C 0mm 84% 0cm 3.6° 25°C 0mm 0.5kPa 24135m 0.61m/s 0.59m/s
07:00
100% 23°C 0mm 80% 0cm 17° 27°C 0mm 0.71kPa 24135m 1.3m/s 1.2m/s
08:00
100% 23°C 0mm 73% 0cm 31° 28°C 0mm 1kPa 24135m 1.2m/s 1.3m/s
09:00
100% 23°C 0mm 67% 0cm 45° 30°C 0mm 1.4kPa 24135m 1.2m/s 1.3m/s
10:00
100% 23°C 0mm 61% 0cm 58° 32°C 0mm 1.8kPa 24135m 1m/s 1.2m/s
11:00
99% 23°C 0mm 56% 0cm 70° 33°C 0mm 2.2kPa 24135m 1m/s 0.94m/s
12:00
98% 23°C 0mm 52% 0cm 75° 34°C 0mm 2.6kPa 24134m 0.91m/s 0.63m/s
13:00
97% 23°C 0mm 49% 0cm 68° 35°C 0mm 2.9kPa 24134m 0.9m/s 0.22m/s
14:00
85% 22°C 0mm 47% 0cm 56° 35°C 0mm 3kPa 24135m 1.3m/s 0.51m/s
15:00
74% 22°C 0mm 46% 0cm 43° 35°C 0mm 3kPa 24135m 1.4m/s 0.91m/s
16:00
62% 23°C 0mm 53% 0cm 29° 34°C 0mm 2.5kPa 24135m 1.7m/s 1.3m/s
17:00
61% 23°C 0mm 55% 0cm 15° 33°C 0mm 2.2kPa 24135m 2.2m/s 1.9m/s
18:00
59% 23°C 0mm 62% 0cm 1.1° 31°C 0mm 1.7kPa 24135m 4.4m/s 2.9m/s
19:00 ☾
58% 23°C 0mm 69% 0cm -13° 30°C 0mm 1.3kPa 24135m 7.1m/s 4.1m/s
20:00 ☾
58% 24°C 0mm 74% 0cm -27° 29°C 0mm 1kPa 24134m 7.3m/s 4m/s
21:00 ☾
59% 24°C 0mm 76% 0cm -40° 28°C 0mm 0.92kPa 24134m 6.8m/s 3.7m/s
22:00 ☾
59% 24°C 0mm 78% 0cm -51° 28°C 0mm 0.82kPa 24135m 6.5m/s 3.3m/s
23:00 ☾
59% 23°C 0mm 78% 0cm -60° 27°C 0.06mm 0.78kPa 24135m 6m/s 3.1m/s
Wed, Sep 9 Sunrise 05:42 Sunset 18:06
24:00 ☾
59% 23°C 0mm 80% 0cm -63° 27°C 0.06mm 0.72kPa 24135m 5.3m/s 2.7m/s
01:00 ☾
59% 23°C 0mm 81% 0cm -59° 27°C 0.13mm 0.67kPa 24134m 4m/s 2.3m/s
02:00 ☾
55% 23°C 0mm 81% 0cm -49° 27°C 0mm 0.65kPa 24134m 2.9m/s 2m/s
03:00 ☾
50% 23°C 0mm 82% 0cm -37° 26°C 0mm 0.62kPa 24135m 2.3m/s 1.8m/s
04:00 ☾
46% 23°C 0mm 83% 0cm -24° 26°C 0mm 0.58kPa 24134m 1.7m/s 1.5m/s
05:00 ☾
42% 23°C 0mm 83% 0cm -11° 26°C 0mm 0.56kPa 24134m 1.3m/s 1.1m/s
06:00 ☾
37% 23°C 0mm 85% 0cm 3.5° 26°C 0mm 0.52kPa 24135m 1m/s 0.85m/s
07:00
33% 24°C 0mm 80% 0cm 17° 27°C 0mm 0.75kPa 24135m 1.3m/s 1.1m/s
08:00
33% 24°C 0mm 73% 0cm 31° 29°C 0mm 1.1kPa 24134m 0.81m/s 0.5m/s
09:00
34% 24°C 0mm 67% 0cm 45° 31°C 0.13mm 1.4kPa 24134m 0.61m/s 0.21m/s
10:00
34% 23°C 0mm 61% 0cm 58° 32°C 0.38mm 1.8kPa 24134m 1.5m/s 1.2m/s
11:00
28% 23°C 0mm 60% 0cm 70° 32°C 0.94mm 1.9kPa 24135m 2.6m/s 2.3m/s
12:00
21% 23°C 0mm 61% 0cm 74° 32°C 2.3mm 1.8kPa 12374m 2.9m/s 2.4m/s
13:00
15% 23°C 0mm 60% 0cm 68° 32°C 4.5mm 2kPa 24135m 2.2m/s 1.4m/s
14:00
12% 24°C 0mm 62% 0cm 56° 32°C 3.5mm 1.8kPa 9170m 2.2m/s 1.7m/s
15:00
8% 25°C 0mm 72% 0cm 42° 30°C 8.8mm 1.2kPa 2911m 2.7m/s 2m/s
16:00
5% 25°C 0mm 78% 0cm 28° 29°C 13mm 0.87kPa 3986m 2.9m/s 1.9m/s
17:00
7% 25°C 0mm 78% 0cm 15° 29°C 15mm 0.88kPa 22472m 2.7m/s 1.6m/s
18:00
9% 24°C 0mm 81% 0cm 0.89° 28°C 16mm 0.71kPa 24134m 2.3m/s 1.6m/s
19:00 ☾
11% 24°C 0mm 84% 0cm -13° 27°C 16mm 0.57kPa 9368m 3.6m/s 2.2m/s
20:00 ☾
21% 24°C 0.01mm 86% 0cm -27° 27°C 1.3mm 0.51kPa 17248m 5.6m/s 2.7m/s
21:00 ☾
30% 24°C 0mm 86% 0cm -40° 27°C 1.7mm 0.49kPa 20713m 4.6m/s 2.4m/s
22:00 ☾
40% 24°C 0mm 87% 0cm -52° 26°C 1.7mm 0.43kPa 24135m 3.2m/s 2.1m/s
23:00 ☾
36% 24°C 0mm 89% 0cm -61° 26°C 1.7mm 0.38kPa 24135m 1.8m/s 1.6m/s
Thu, Sep 10 Sunrise 05:42 Sunset 18:05
24:00 ☾
33% 24°C 0mm 88% 0cm -64° 26°C 1.8mm 0.38kPa 24134m 1.4m/s 1.3m/s
01:00 ☾
29% 23°C 0mm 88% 0cm -59° 26°C 1.8mm 0.41kPa 24134m 0.8m/s 0.71m/s
02:00 ☾
33% 23°C 0mm 87% 0cm -50° 25°C 0.13mm 0.41kPa 24135m 0.61m/s 0.65m/s
03:00 ☾
38% 23°C 0mm 88% 0cm -37° 25°C 0.38mm 0.4kPa 18737m 0.41m/s 0.3m/s
04:00 ☾
42% 23°C 0mm 88% 0cm -24° 25°C 1.1mm 0.37kPa 13031m 0.4m/s 0.05m/s
05:00 ☾
42% 23°C 0mm 88% 0cm -11° 25°C 1.6mm 0.37kPa 24135m 0.4m/s 0.32m/s
06:00 ☾
41% 23°C 0mm 89% 0cm 3.5° 25°C 2.3mm 0.34kPa 14339m 0.9m/s 0.69m/s
07:00
41% 23°C 0mm 84% 0cm 17° 26°C 3.5mm 0.53kPa 6312m 1.5m/s 1.2m/s
08:00
43% 23°C 0mm 75% 0cm 31° 28°C 2.1mm 0.93kPa 5432m 1.2m/s 1.2m/s
09:00
44% 23°C 0mm 71% 0cm 45° 29°C 4mm 1.2kPa 6443m 1.8m/s 1.4m/s
10:00
46% 23°C 0mm 68% 0cm 58° 29°C 5.6mm 1.3kPa 7769m 2.8m/s 2m/s
11:00
42% 23°C 0mm 68% 0cm 69° 30°C 6.8mm 1.3kPa 7599m 2.4m/s 2.1m/s
12:00
39% 24°C 0mm 70% 0cm 74° 30°C 8.2mm 1.2kPa 8377m 2.9m/s 3.2m/s
13:00
35% 24°C 0.01mm 75% 0cm 67° 29°C 9.6mm 1kPa 12318m 4.2m/s 4.4m/s
14:00
33% 23°C 0.09mm 80% 0cm 55° 27°C 7.4mm 0.7kPa 16257m 5.2m/s 4m/s
15:00
31% 23°C 0.16mm 86% 0cm 42° 25°C 5.1mm 0.45kPa 20196m 6.3m/s 3.6m/s
16:00
29% 22°C 0.24mm 92% 0cm 28° 24°C 2.9mm 0.24kPa 24135m 7.3m/s 3.2m/s
17:00
32% 22°C 0.16mm 91% 0cm 14° 24°C 3.2mm 0.25kPa 24135m 7.9m/s 3.3m/s
18:00
36% 22°C 0.08mm 91% 0cm 0.7° 23°C 3.5mm 0.26kPa 24135m 8.6m/s 3.4m/s
19:00 ☾
39% 22°C 0mm 91% 0cm -14° 23°C 3.8mm 0.27kPa 24135m 9.2m/s 3.5m/s
20:00 ☾
47% 21°C 0mm 89% 0cm -27° 23°C 2.5mm 0.3kPa 24135m 10m/s 4.1m/s
21:00 ☾
54% 20°C 0mm 88% 0cm -40° 23°C 1.3mm 0.34kPa 24135m 11m/s 4.8m/s
22:00 ☾
62% 20°C 0mm 86% 0cm -52° 22°C 0mm 0.37kPa 24135m 12m/s 5.4m/s
23:00 ☾
64% 20°C 0mm 84% 0cm -61° 22°C 0mm 0.44kPa 24135m 12m/s 5.5m/s
Fri, Sep 11 Sunrise 05:42 Sunset 18:04
24:00 ☾
66% 19°C 0mm 81% 0cm -64° 23°C 0mm 0.51kPa 24135m 12m/s 5.5m/s
01:00 ☾
68% 19°C 0mm 79% 0cm -60° 23°C 0mm 0.58kPa 24135m 13m/s 5.6m/s
02:00 ☾
67% 19°C 0mm 72% 0cm -50° 24°C 0mm 0.85kPa 24135m 12m/s 6.2m/s
03:00 ☾
66% 19°C 0mm 65% 0cm -38° 26°C 0mm 1.2kPa 24135m 11m/s 6.8m/s
04:00 ☾
65% 18°C 0mm 58% 0cm -24° 27°C 0mm 1.6kPa 24135m 9.5m/s 7.4m/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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