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Rule Fog Hunter

Fog Hunter Forecast for Höfn, Iceland

Hofn, East, Iceland

Höfn occupies a low harbour peninsula surrounded by tidal flats and fishing boats. Open water and wet sand lead toward Vatnajökull’s outlet glaciers and the sharply defined profile of Vestrahorn.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.4°C
Visibility24135 (Clear)
Relative Humidity91%
Wind Speed8.2m/s (moderate winds)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Reykjavik
fog weather icon
Next opportunity
Dense Fog
Höfn
Sat, Aug 29 · 24:00–04:00 · 4h window
Low confidence
31%
🌫️Fog Probability80-100%
Dewpoint Spread: 0.8°C
Visibility: 98 (Dense fog)
Relative Humidity: 95%
Wind Speed: 3.4m/s (calm conditions)

How this forecast is evaluated

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

Explore Fog Hunter conditions across Iceland →

Recorded match history

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

Last 30 days
1
recorded matching window · 40% average confidence
Last 90 days
2
recorded matching windows · 70% average confidence
Last 365 days
2
recorded matching windows · 70% average confidence

Only 2 completed matches are recorded in the last 365 days—insufficient history to identify a reliable typical start time or month.

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
Atlantic/Reykjavik
Fog Probability
≥ 75.0%
Sat, Aug 22
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%
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%
13:0069%
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%
01:000%
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%
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%
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
Atlantic/Reykjavik
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
Sat, Aug 22 Sunrise 05:13 Sunset 20:52
20:00
0% 9.6°C 0mm 91% 0cm 4.6° 11°C 0mm 0.12kPa 24135m 9.9m/s 8.2m/s
21:00 ☾
0% 9.9°C 0mm 94% 0cm -1.3° 11°C 0mm 0.08kPa 24135m 11m/s 8.6m/s
22:00 ☾
0% 10°C 0mm 94% 0cm -6.6° 11°C 0.13mm 0.08kPa 2575m 12m/s 9m/s
23:00 ☾
0% 10°C 0.27mm 96% 0cm -11° 11°C 0.25mm 0.05kPa 1813m 14m/s 9.3m/s
Sun, Aug 23 Sunrise 05:16 Sunset 20:48
24:00 ☾
0% 10°C 0.32mm 97% 0cm -13° 11°C 0.56mm 0.04kPa 1675m 14m/s 9.5m/s
01:00 ☾
0% 10°C 0.26mm 96% 0cm -14° 11°C 0.25mm 0.05kPa 1658m 14m/s 9.8m/s
02:00 ☾
0% 10°C 0.29mm 97% 0cm -13° 11°C 0.56mm 0.04kPa 1652m 15m/s 9.6m/s
03:00 ☾
0% 11°C 0.22mm 98% 0cm -11° 11°C 0.81mm 0.03kPa 1596m 14m/s 9m/s
04:00 ☾
0% 11°C 0.28mm 98% 0cm -7.2° 11°C 1mm 0.03kPa 1470m 14m/s 8.4m/s
05:00 ☾
0% 11°C 0.21mm 98% 0cm -2.1° 11°C 1.3mm 0.02kPa 1522m 12m/s 7.1m/s
06:00
0% 11°C 0.79mm 99% 0cm 3.7° 11°C 1.7mm 0.02kPa 608m 11m/s 6.3m/s
07:00
0% 11°C 1.9mm 99% 0cm 10° 11°C 0.94mm 0.01kPa 345m 8.8m/s 5.5m/s
08:00
0% 11°C 0.55mm 99% 0cm 16° 11°C 1.8mm 0.01kPa 492m 8m/s 5.3m/s
09:00
0% 11°C 1.1mm 100% 0cm 23° 11°C 2.5mm 0.01kPa 285m 4.8m/s 3.9m/s
10:00
0% 11°C 0.13mm 100% 0cm 28° 11°C 2.8mm 0.01kPa 255m 5.6m/s 4.2m/s
11:00
0% 11°C 0mm 99% 0cm 33° 11°C 2.8mm 0.01kPa 390m 4.3m/s 3.5m/s
12:00
0% 11°C 0mm 99% 0cm 36° 11°C 2.8mm 0.01kPa 609m 3.2m/s 2.6m/s
13:00
2% 11°C 0mm 98% 0cm 37° 11°C 0mm 0.03kPa 1622m 2.5m/s 2.3m/s
14:00
4% 10°C 0mm 93% 0cm 36° 11°C 0mm 0.09kPa 21275m 3.4m/s 3.1m/s
15:00
6% 9.6°C 0mm 90% 0cm 33° 11°C 0mm 0.14kPa 24135m 3.7m/s 3.6m/s
16:00
6% 9.3°C 0mm 88% 0cm 29° 11°C 0mm 0.16kPa 24135m 3.6m/s 3.7m/s
17:00
5% 9°C 0mm 87% 0cm 23° 11°C 0mm 0.18kPa 24134m 3.9m/s 4.3m/s
18:00
5% 8.8°C 0mm 85% 0cm 17° 11°C 0mm 0.2kPa 24135m 3.5m/s 3.7m/s
19:00
8% 8.8°C 0mm 84% 0cm 11° 11°C 0mm 0.21kPa 24134m 3.9m/s 4m/s
20:00
12% 8.4°C 0mm 84% 0cm 4.3° 11°C 0mm 0.22kPa 24134m 3.9m/s 3.7m/s
21:00 ☾
15% 7.5°C 0mm 79% 0cm -1.7° 11°C 0mm 0.28kPa 24134m 3.1m/s 3.1m/s
22:00 ☾
13% 6.4°C 0mm 73% 0cm -7° 11°C 0mm 0.36kPa 24134m 2.6m/s 2.5m/s
23:00 ☾
12% 5.5°C 0mm 68% 0cm -11° 11°C 0mm 0.42kPa 24134m 2.3m/s 2.2m/s
Mon, Aug 24 Sunrise 05:19 Sunset 20:45
24:00 ☾
10% 5.5°C 0mm 70% 0cm -14° 11°C 0mm 0.4kPa 24134m 1.6m/s 1.5m/s
01:00 ☾
8% 6.2°C 0mm 74% 0cm -15° 11°C 0mm 0.34kPa 24134m 0.81m/s 0.65m/s
02:00 ☾
7% 7.1°C 0mm 80% 0cm -14° 10°C 0mm 0.25kPa 24134m 3.4m/s 3.4m/s
03:00 ☾
5% 7.2°C 0mm 86% 0cm -11° 9.5°C 0mm 0.17kPa 24135m 5.1m/s 3.7m/s
04:00 ☾
3% 6.5°C 0mm 80% 0cm -7.6° 9.9°C 0mm 0.25kPa 24134m 3.8m/s 2.9m/s
05:00 ☾
2% 5.7°C 0mm 75% 0cm -2.5° 9.8°C 0mm 0.3kPa 24134m 3.8m/s 3.3m/s
06:00
0% 5.6°C 0mm 77% 0cm 3.5° 9.5°C 0mm 0.28kPa 24134m 5.1m/s 4.6m/s
07:00
0% 6°C 0mm 78% 0cm 9.7° 9.5°C 0mm 0.26kPa 24134m 5.8m/s 4.8m/s
08:00
0% 6.2°C 0.09mm 78% 0cm 16° 9.7°C 0mm 0.26kPa 24135m 6.4m/s 4.7m/s
09:00
0% 6.4°C 0.49mm 79% 0cm 22° 9.8°C 0.25mm 0.25kPa 22680m 6.2m/s 4.7m/s
10:00
0% 6.4°C 1.1mm 82% 0cm 28° 9.3°C 1mm 0.21kPa 11795m 5.9m/s 4.9m/s
11:00
0% 6.6°C 1.1mm 85% 0cm 33° 9.1°C 1.9mm 0.18kPa 11254m 6m/s 5m/s
12:00
0% 7.1°C 1.7mm 88% 0cm 36° 9°C 3.2mm 0.14kPa 8538m 5.9m/s 4.6m/s
13:00
0% 7.3°C 2mm 88% 0cm 37° 9.2°C 1.8mm 0.14kPa 8255m 5.7m/s 4.8m/s
14:00
0% 7.7°C 2.9mm 88% 0cm 36° 9.5°C 3.8mm 0.14kPa 7109m 6.2m/s 4.9m/s
15:00
0% 8°C 1.8mm 92% 0cm 33° 9.3°C 6.8mm 0.1kPa 6866m 6.4m/s 5.8m/s
16:00
0% 9°C 0.03mm 94% 0cm 28° 10°C 7.5mm 0.08kPa 8404m 4.5m/s 4.1m/s
17:00
0% 8.7°C 0.92mm 94% 0cm 23° 9.6°C 8.2mm 0.08kPa 8231m 5.2m/s 5.3m/s
18:00
0% 9.1°C 1.4mm 95% 0cm 17° 9.9°C 9.8mm 0.07kPa 7232m 6.9m/s 5.7m/s
19:00
0% 10°C 2.8mm 96% 0cm 10° 11°C 2.5mm 0.05kPa 2851m 8.3m/s 5.9m/s
20:00
0% 10°C 5.2mm 98% 0cm 3.9° 11°C 7.3mm 0.03kPa 720m 12m/s 7.1m/s
21:00 ☾
0% 11°C 3mm 97% 0cm -2.1° 11°C 12mm 0.04kPa 745m 16m/s 8.5m/s
22:00 ☾
0% 11°C 0.29mm 97% 0cm -7.3° 11°C 15mm 0.04kPa 1725m 14m/s 8.7m/s
23:00 ☾
1% 9.6°C 0.02mm 90% 0cm -11° 11°C 16mm 0.13kPa 9607m 13m/s 7.7m/s
Tue, Aug 25 Sunrise 05:22 Sunset 20:41
24:00 ☾
1% 9.1°C 0mm 88% 0cm -14° 11°C 16mm 0.16kPa 20046m 13m/s 7.9m/s
01:00 ☾
3% 8.3°C 0mm 88% 0cm -15° 10°C 11mm 0.15kPa 20844m 10m/s 6.5m/s
02:00 ☾
5% 7.5°C 0mm 88% 0cm -14° 9.3°C 5.4mm 0.14kPa 21641m 7.2m/s 5m/s
03:00 ☾
7% 6.6°C 0mm 88% 0cm -12° 8.4°C 0.19mm 0.13kPa 22439m 4.1m/s 3.6m/s
04:00 ☾
7% 6.4°C 0mm 83% 0cm -7.9° 9.1°C 0.23mm 0.19kPa 22372m 4.4m/s 3.8m/s
05:00 ☾
7% 6.2°C 0mm 78% 0cm -2.8° 9.8°C 0.27mm 0.27kPa 22305m 4.7m/s 4.1m/s
06:00
7% 5.8°C 0mm 73% 0cm 3.2° 11°C 0.31mm 0.35kPa 22238m 5m/s 4.4m/s
07:00
7% 5.8°C 0mm 72% 0cm 9.4° 11°C 0.21mm 0.36kPa 22231m 4.7m/s 4.2m/s
08:00
8% 5.8°C 0mm 71% 0cm 16° 11°C 0.1mm 0.38kPa 22225m 4.4m/s 4m/s
09:00
8% 5.8°C 0mm 70% 0cm 22° 11°C 0mm 0.39kPa 22218m 4m/s 3.9m/s
10:00
8% 6.2°C 0mm 73% 0cm 28° 11°C 0mm 0.35kPa 22210m 3.6m/s 3.4m/s
11:00
8% 6.6°C 0mm 76% 0cm 32° 11°C 0mm 0.3kPa 22201m 3.2m/s 3m/s
12:00
8% 7°C 0mm 80% 0cm 35° 10°C 0mm 0.26kPa 22193m 2.7m/s 2.5m/s
13:00
7% 7.1°C 0mm 83% 0cm 36° 10°C 0mm 0.21kPa 22194m 2m/s 1.9m/s
14:00
7% 7.3°C 0mm 86% 0cm 35° 9.6°C 0mm 0.17kPa 22196m 1.3m/s 1.2m/s
15:00
6% 7.4°C 0mm 89% 0cm 33° 9.2°C 0mm 0.13kPa 22197m 0.53m/s 0.58m/s
16:00
5% 7.2°C 0mm 88% 0cm 28° 9°C 0mm 0.13kPa 22197m 0.8m/s 0.86m/s
17:00
5% 7°C 0mm 88% 0cm 23° 8.9°C 0mm 0.13kPa 22198m 1.1m/s 1.2m/s
18:00
4% 6.8°C 0mm 88% 0cm 16° 8.7°C 0mm 0.14kPa 22198m 1.3m/s 1.4m/s
19:00
3% 6.8°C 0mm 88% 0cm 9.9° 8.7°C 0mm 0.14kPa 22197m 1.1m/s 1.3m/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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