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Rule Fog Hunter

Fog Hunter Forecast for Mývatn, Iceland

Reykjahlíð, Northeast, Iceland

Mývatn surrounds shallow water with pseudocraters, lava pillars, and distant volcanic ridges. Geothermal steam adds moving layers, while snow makes the dark volcanic forms especially graphic in winter.

Currently

Real-time conditions
Fog Probability
69%
Dewpoint Spread0.6°C
Visibility347 (Fog)
Relative Humidity96%
Wind Speed3.9m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Reykjavik
fog weather icon
Next opportunity
Dense Fog at Dawn
Mývatn
Today · 03:00–04:00 · 1h window
Medium confidence
56%
🌫️Fog Probability79.2%
Dewpoint Spread: 0.6°C
Visibility: 217 (Fog)
Relative Humidity: 96%
Wind Speed: 3.7m/s (calm conditions)
fog weather icon
Dense Fog at Sunrise
Mývatn
Today · 04:00–05:00
🌫️Fog Probability:79.2%
Medium

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 Mývatn.

Explore Fog Hunter conditions across Iceland →

Recorded match history

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

Last 30 days
3
recorded matching windows · 56% average confidence
Last 90 days
11
recorded matching windows · 77% average confidence
Last 365 days
15
recorded matching windows · 75% average confidence
Most frequent recorded start hour

01:00 local time, shared by 4 of 14 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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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
9matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Atlantic/Reykjavik
Fog Probability
≥ 75.0%
Thu, Aug 13
04:000%
05:000%
06:000%
07:0030%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:0055%
19:0079%
20:0079%
21:0079%
22:0079%
23:0079%
Fri, Aug 14
24:0079%
01:0079%
02:0069%
03:0079%
04:0079%
05:0047%
06:0073%
07:0059%
08:0052%
09:000%
10:000%
11:000%
12:0034%
13:0063%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sat, Aug 15
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%
Sun, Aug 16
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 17
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
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
Fri, Aug 14 Sunrise 04:44 Sunset 21:37
04:00 ☾
0% 6°C 0.05mm 96% 0cm -4° 6.6°C 0.06mm 0.04kPa 347m 6.1m/s 3.9m/s
05:00
0% 5.8°C 0.03mm 96% 0cm 0.86° 6.5°C 0.13mm 0.04kPa 3538m 7.1m/s 3.8m/s
06:00
0% 5.7°C 0.02mm 96% 0cm 6° 6.3°C 0.19mm 0.04kPa 1375m 8.1m/s 3.5m/s
07:00
0% 5.7°C 0.02mm 95% 0cm 12° 6.4°C 0mm 0.04kPa 5940m 8.4m/s 3.3m/s
08:00
0% 5.6°C 0.03mm 95% 0cm 18° 6.4°C 0.06mm 0.05kPa 6426m 8.4m/s 3.4m/s
09:00
0% 5.6°C 0.04mm 94% 0cm 24° 6.4°C 0.06mm 0.05kPa 6555m 8.3m/s 3.1m/s
10:00
0% 5.6°C 0.06mm 94% 0cm 29° 6.5°C 0.13mm 0.06kPa 6634m 8.1m/s 3.3m/s
11:00
0% 5.7°C 0.07mm 94% 0cm 34° 6.6°C 0.19mm 0.06kPa 6352m 7.9m/s 3.5m/s
12:00
0% 5.8°C 0.03mm 95% 0cm 37° 6.5°C 0.25mm 0.04kPa 792m 7.8m/s 3.7m/s
13:00
0% 5.8°C 0mm 96% 0cm 39° 6.4°C 0mm 0.04kPa 236m 7.5m/s 4.2m/s
14:00
0% 5.5°C 0mm 94% 0cm 38° 6.4°C 0.06mm 0.06kPa 7096m 6.6m/s 4.4m/s
15:00
0% 5.1°C 0mm 87% 0cm 35° 7.1°C 0.06mm 0.13kPa 24134m 5.4m/s 4.3m/s
16:00
0% 4.6°C 0mm 81% 0cm 31° 7.6°C 0.06mm 0.2kPa 24134m 5.4m/s 4.3m/s
17:00
0% 4.2°C 0mm 79% 0cm 26° 7.6°C 0.06mm 0.22kPa 24135m 5m/s 4.1m/s
18:00
0% 3.9°C 0mm 76% 0cm 20° 7.8°C 0.06mm 0.25kPa 24134m 4.7m/s 3.8m/s
19:00
0% 3.4°C 0mm 75% 0cm 14° 7.6°C 0mm 0.26kPa 24134m 4.2m/s 3.4m/s
20:00
0% 3.1°C 0mm 76% 0cm 8.2° 7.1°C 0mm 0.24kPa 24134m 3.4m/s 3m/s
21:00
0% 3.1°C 0mm 82% 0cm 2.6° 5.9°C 0mm 0.16kPa 24134m 2.5m/s 2.3m/s
22:00 ☾
1% 2.9°C 0mm 86% 0cm -2.4° 4.9°C 0mm 0.12kPa 24135m 2m/s 2m/s
23:00 ☾
2% 2.6°C 0mm 86% 0cm -6.4° 4.8°C 0mm 0.12kPa 24135m 1.1m/s 1.2m/s
Sat, Aug 15 Sunrise 04:48 Sunset 21:33
24:00 ☾
3% 2.6°C 0mm 82% 0cm -9.1° 5.4°C 0mm 0.16kPa 24135m 0.52m/s 0.45m/s
01:00 ☾
10% 2.4°C 0mm 80% 0cm -10° 5.6°C 0mm 0.18kPa 24135m 0.41m/s 0.39m/s
02:00 ☾
18% 2.6°C 0mm 80% 0cm -9.7° 5.8°C 0mm 0.19kPa 24134m 0.14m/s 0.21m/s
03:00 ☾
25% 2.6°C 0mm 79% 0cm -7.7° 5.9°C 0mm 0.19kPa 24134m 0.32m/s 0.3m/s
04:00 ☾
23% 2.2°C 0mm 82% 0cm -4.3° 5°C 0mm 0.16kPa 24135m 0.42m/s 0.39m/s
05:00
21% 2.1°C 0mm 83% 0cm 0.62° 4.6°C 0mm 0.14kPa 24134m 0.91m/s 0.9m/s
06:00
19% 2.3°C 0mm 82% 0cm 5.7° 5.1°C 0mm 0.15kPa 24134m 0.81m/s 0.76m/s
07:00
20% 2.3°C 0mm 76% 0cm 12° 6.3°C 0mm 0.23kPa 24134m 0.4m/s 0.24m/s
08:00
21% 2.6°C 0mm 72% 0cm 18° 7.4°C 0mm 0.29kPa 24135m 0.64m/s 0.38m/s
09:00
22% 2.8°C 0mm 68% 0cm 24° 8.5°C 0mm 0.36kPa 24135m 1.3m/s 0.83m/s
10:00
20% 3°C 0mm 64% 0cm 29° 9.6°C 0mm 0.43kPa 24135m 1.9m/s 1.3m/s
11:00
18% 3.1°C 0mm 60% 0cm 34° 10°C 0mm 0.5kPa 24134m 1.8m/s 1.4m/s
12:00
16% 3.2°C 0mm 57% 0cm 37° 11°C 0mm 0.57kPa 24134m 1.4m/s 1.1m/s
13:00
24% 2.9°C 0mm 54% 0cm 38° 12°C 0mm 0.64kPa 24135m 1.2m/s 0.87m/s
14:00
33% 2.9°C 0mm 51% 0cm 38° 13°C 0mm 0.71kPa 24134m 0.81m/s 0.71m/s
15:00
41% 2.7°C 0mm 49% 0cm 35° 13°C 0mm 0.77kPa 24135m 0.82m/s 0.95m/s
16:00
42% 2.9°C 0mm 48% 0cm 31° 14°C 0mm 0.8kPa 24135m 1.1m/s 1.7m/s
17:00
44% 3.1°C 0mm 48% 0cm 26° 14°C 0mm 0.81kPa 24135m 1.6m/s 2.5m/s
18:00
45% 3.5°C 0mm 51% 0cm 20° 13°C 0mm 0.75kPa 24135m 1.6m/s 3.2m/s
19:00
50% 3.8°C 0mm 56% 0cm 14° 12°C 0mm 0.63kPa 24134m 2.1m/s 3.3m/s
20:00
54% 4°C 0mm 62% 0cm 7.9° 11°C 0mm 0.49kPa 24135m 2.8m/s 3.2m/s
21:00
59% 4°C 0mm 70% 0cm 2.3° 9.2°C 0mm 0.35kPa 24134m 2.7m/s 2.6m/s
22:00 ☾
59% 3.5°C 0mm 73% 0cm -2.8° 8°C 0mm 0.28kPa 24135m 2.1m/s 2.2m/s
23:00 ☾
60% 3.3°C 0mm 75% 0cm -6.8° 7.5°C 0mm 0.26kPa 24135m 1.4m/s 1.5m/s
Sun, Aug 16 Sunrise 04:51 Sunset 21:29
24:00 ☾
60% 3.3°C 0mm 77% 0cm -9.4° 7°C 0mm 0.23kPa 24134m 1m/s 1m/s
01:00 ☾
67% 3.3°C 0mm 78% 0cm -11° 6.8°C 0mm 0.22kPa 24135m 0.7m/s 0.69m/s
02:00 ☾
74% 3.1°C 0mm 79% 0cm -10° 6.5°C 0mm 0.21kPa 24134m 0.6m/s 0.53m/s
03:00 ☾
81% 3°C 0mm 79% 0cm -8° 6.3°C 0mm 0.2kPa 24135m 0.53m/s 0.48m/s
04:00 ☾
81% 3.1°C 0mm 81% 0cm -4.6° 6.1°C 0mm 0.18kPa 24134m 0.42m/s 0.43m/s
05:00
80% 3°C 0mm 82% 0cm 0.38° 5.9°C 0mm 0.17kPa 24134m 0.33m/s 0.27m/s
06:00
80% 3.4°C 0mm 80% 0cm 5.4° 6.7°C 0mm 0.2kPa 24134m 0.41m/s 0.46m/s
07:00
81% 3.3°C 0mm 71% 0cm 11° 8.2°C 0mm 0.31kPa 24134m 0.92m/s 0.74m/s
08:00
82% 3.6°C 0mm 68% 0cm 17° 9.1°C 0mm 0.37kPa 24135m 1.1m/s 0.92m/s
09:00
83% 3.8°C 0mm 66% 0cm 23° 9.9°C 0mm 0.42kPa 24134m 1m/s 0.81m/s
10:00
84% 4.1°C 0mm 63% 0cm 29° 11°C 0mm 0.48kPa 24135m 0.8m/s 0.75m/s
11:00
84% 4.2°C 0mm 60% 0cm 33° 12°C 0mm 0.55kPa 24135m 0.61m/s 0.77m/s
12:00
85% 4.3°C 0mm 57% 0cm 37° 13°C 0mm 0.62kPa 24135m 0.71m/s 1.1m/s
13:00
83% 5°C 0mm 61% 0cm 38° 12°C 0mm 0.56kPa 24135m 1.6m/s 1.8m/s
14:00
81% 5.7°C 0mm 65% 0cm 37° 12°C 0mm 0.5kPa 24135m 2.4m/s 2.5m/s
15:00
79% 6.3°C 0mm 68% 0cm 35° 12°C 0mm 0.45kPa 24135m 3.3m/s 3.1m/s
16:00
75% 6.3°C 0mm 72% 0cm 31° 11°C 0mm 0.37kPa 24135m 2.6m/s 2.5m/s
17:00
71% 6.3°C 0mm 76% 0cm 26° 10°C 0mm 0.31kPa 24135m 1.9m/s 1.8m/s
18:00
67% 6.3°C 0mm 80% 0cm 20° 9.6°C 0mm 0.24kPa 24135m 1.1m/s 1.2m/s
19:00
67% 6.2°C 0mm 81% 0cm 14° 9.3°C 0mm 0.22kPa 24135m 0.96m/s 1m/s
20:00
66% 6.2°C 0mm 83% 0cm 7.6° 8.9°C 0mm 0.2kPa 24135m 0.78m/s 0.86m/s
21:00
66% 6.1°C 0mm 84% 0cm 2.1° 8.6°C 0mm 0.17kPa 24135m 0.6m/s 0.7m/s
22:00 ☾
66% 6.2°C 0mm 84% 0cm -3.1° 8.7°C 0mm 0.18kPa 24135m 0.67m/s 0.76m/s
23:00 ☾
65% 6.2°C 0mm 84% 0cm -7.1° 8.8°C 0mm 0.18kPa 24135m 0.74m/s 0.83m/s
Mon, Aug 17 Sunrise 04:55 Sunset 21:25
24:00 ☾
65% 6.3°C 0mm 84% 0cm -9.7° 8.9°C 0mm 0.19kPa 24135m 0.81m/s 0.89m/s
01:00 ☾
65% 6.3°C 0mm 78% 0cm -11° 10°C 0mm 0.27kPa 24135m 0.91m/s 0.78m/s
02:00 ☾
65% 6.2°C 0mm 72% 0cm -10° 11°C 0mm 0.36kPa 24135m 1m/s 0.66m/s
03:00 ☾
65% 6.1°C 0mm 67% 0cm -8.3° 12°C 0mm 0.46kPa 24135m 1.1m/s 0.54m/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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