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Rule Fog Hunter

Fog Hunter Forecast for Jökulsárlón Glacier Lagoon, Iceland

Iceland

Jökulsárlón holds drifting blue and white ice beneath Vatnajökull’s outlet glaciers. Changing ice shapes, reflections, dark moraine shores, and the narrow channel toward Diamond Beach continually alter the composition.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.8°C
Visibility6845 (Moderate)
Relative Humidity88%
Wind Speed2.5m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Reykjavik

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (80-hour forecast)

  • Fog Probability100% of hours

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 Jökulsárlón Glacier Lagoon.

Explore Fog Hunter conditions across Iceland →

Recorded match history

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

Last 30 days
0
recorded matching windows
Last 90 days
10
recorded matching windows · 69% average confidence
Last 365 days
10
recorded matching windows · 69% average confidence
Most frequent recorded start hour

19:00 local time, shared by 3 of 10 matches recorded in the last 365 days.

Most represented month

May, with 7 of 10 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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80-hour requirements breakdown

When available, the detailed table below covers only the stated 80-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 80 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Atlantic/Reykjavik
Fog Probability
≥ 75.0%
Thu, Aug 13
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, Aug 14
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%
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%
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
Thu, Aug 13 Sunrise 04:50 Sunset 21:26
15:00
0% 11°C 0mm 88% 0cm 37° 13°C 0.06mm 0.17kPa 6845m 2.5m/s 2.5m/s
16:00
0% 11°C 0mm 89% 0cm 33° 13°C 0.06mm 0.17kPa 717m 3.2m/s 3.1m/s
17:00
0% 11°C 0mm 88% 0cm 27° 13°C 0.06mm 0.19kPa 426m 3.5m/s 3.3m/s
18:00
0% 11°C 0mm 86% 0cm 21° 13°C 0.06mm 0.22kPa 636m 3.2m/s 2.7m/s
19:00
0% 11°C 0mm 87% 0cm 14° 13°C 0mm 0.2kPa 6914m 2.5m/s 2.1m/s
20:00
0% 11°C 0mm 87% 0cm 7.7° 13°C 0mm 0.2kPa 11383m 2.4m/s 2.3m/s
21:00
0% 9.9°C 0mm 85% 0cm 1.9° 12°C 0mm 0.21kPa 11476m 2.6m/s 2.8m/s
22:00 ☾
1% 9.1°C 0mm 83% 0cm -3.5° 12°C 0mm 0.24kPa 11576m 3.2m/s 3.5m/s
23:00 ☾
1% 8.7°C 0mm 80% 0cm -7.6° 12°C 0mm 0.28kPa 11719m 3.1m/s 3.4m/s
Fri, Aug 14 Sunrise 04:53 Sunset 21:23
24:00 ☾
2% 8.6°C 0mm 78% 0cm -10° 12°C 0mm 0.32kPa 13125m 2.9m/s 3.1m/s
01:00 ☾
7% 8.6°C 0mm 76% 0cm -11° 13°C 0mm 0.35kPa 24134m 3.2m/s 3.4m/s
02:00 ☾
12% 8.6°C 0mm 78% 0cm -11° 12°C 0mm 0.32kPa 24135m 3.5m/s 3.7m/s
03:00 ☾
17% 8.4°C 0mm 78% 0cm -8.7° 12°C 0mm 0.31kPa 24134m 3.5m/s 3.7m/s
04:00 ☾
15% 8.5°C 0mm 78% 0cm -5° 12°C 0mm 0.3kPa 24135m 3.5m/s 3.7m/s
05:00
12% 8.5°C 0mm 80% 0cm 0.28° 12°C 0mm 0.28kPa 24134m 3m/s 2.8m/s
06:00
10% 8.8°C 0mm 84% 0cm 5.7° 11°C 0mm 0.22kPa 24134m 2.7m/s 2.4m/s
07:00
7% 8.7°C 0mm 84% 0cm 12° 11°C 0mm 0.21kPa 8491m 2.1m/s 1.6m/s
08:00
4% 8.6°C 0mm 82% 0cm 18° 12°C 0mm 0.25kPa 7883m 2.6m/s 1.9m/s
09:00
1% 8.2°C 0mm 77% 0cm 25° 12°C 0mm 0.33kPa 12482m 3m/s 2.1m/s
10:00
1% 7.6°C 0mm 70% 0cm 31° 13°C 0mm 0.45kPa 11628m 3.7m/s 2.4m/s
11:00
0% 7.1°C 0mm 67% 0cm 35° 13°C 0mm 0.5kPa 11711m 3.4m/s 2.3m/s
12:00
0% 6.9°C 0mm 65% 0cm 39° 13°C 0mm 0.53kPa 11664m 2.5m/s 1.7m/s
13:00
1% 7°C 0mm 69% 0cm 40° 13°C 0mm 0.46kPa 11716m 2.7m/s 2.4m/s
14:00
3% 7.6°C 0mm 75% 0cm 39° 12°C 0mm 0.34kPa 11452m 2.6m/s 2m/s
15:00
4% 7.7°C 0mm 78% 0cm 37° 11°C 0mm 0.3kPa 11416m 1.3m/s 1.8m/s
16:00
6% 7.4°C 0mm 75% 0cm 32° 12°C 0mm 0.35kPa 11450m 1.1m/s 1.5m/s
17:00
7% 7.3°C 0mm 72% 0cm 27° 12°C 0mm 0.39kPa 12145m 1.8m/s 1.7m/s
18:00
9% 7.5°C 0mm 74% 0cm 20° 12°C 0mm 0.37kPa 11658m 2.3m/s 2.2m/s
19:00
19% 7.5°C 0mm 75% 0cm 14° 12°C 0mm 0.34kPa 12153m 2.1m/s 2.1m/s
20:00
29% 7.5°C 0mm 76% 0cm 7.4° 12°C 0mm 0.33kPa 24135m 1.9m/s 1.8m/s
21:00
39% 7.3°C 0mm 76% 0cm 1.7° 11°C 0mm 0.32kPa 24135m 1.7m/s 1.7m/s
22:00 ☾
36% 6.6°C 0mm 74% 0cm -3.8° 11°C 0mm 0.35kPa 24134m 1.8m/s 1.7m/s
23:00 ☾
32% 5.9°C 0mm 71% 0cm -7.9° 11°C 0mm 0.38kPa 24134m 1.7m/s 1.5m/s
Sat, Aug 15 Sunrise 04:56 Sunset 21:19
24:00 ☾
29% 5.6°C 0mm 70% 0cm -11° 11°C 0mm 0.4kPa 24135m 1.7m/s 1.6m/s
01:00 ☾
25% 5.8°C 0mm 71% 0cm -12° 11°C 0mm 0.38kPa 24135m 1.4m/s 1.2m/s
02:00 ☾
22% 6.1°C 0mm 72% 0cm -11° 11°C 0mm 0.37kPa 24134m 0.83m/s 0.78m/s
03:00 ☾
18% 6.3°C 0mm 73% 0cm -9° 11°C 0mm 0.35kPa 24134m 0.81m/s 0.52m/s
04:00 ☾
17% 6.8°C 0mm 76% 0cm -5.3° 11°C 0mm 0.31kPa 24135m 1m/s 0.39m/s
05:00
15% 7.2°C 0mm 81% 0cm 0.06° 10°C 0mm 0.23kPa 24134m 1.3m/s 0.57m/s
06:00
14% 7°C 0mm 82% 0cm 5.4° 9.9°C 0mm 0.22kPa 24135m 2m/s 1.9m/s
07:00
12% 6.5°C 0mm 81% 0cm 12° 9.6°C 0.06mm 0.22kPa 24134m 1.8m/s 2m/s
08:00
9% 6.1°C 0mm 80% 0cm 18° 9.3°C 0.06mm 0.23kPa 24134m 1.6m/s 2.1m/s
09:00
7% 5.9°C 0.01mm 80% 0cm 25° 9.3°C 0.06mm 0.24kPa 14371m 1.5m/s 1.9m/s
10:00
5% 6.1°C 0.02mm 79% 0cm 30° 9.6°C 0.13mm 0.25kPa 11619m 0.92m/s 1.1m/s
11:00
3% 6.4°C 0mm 79% 0cm 35° 9.9°C 0.13mm 0.26kPa 11338m 0.72m/s 0.62m/s
12:00
1% 6.8°C 0mm 79% 0cm 38° 10°C 0.13mm 0.26kPa 11369m 0.9m/s 0.94m/s
13:00
1% 7.1°C 0mm 79% 0cm 40° 11°C 0mm 0.27kPa 11409m 1.2m/s 1.3m/s
14:00
2% 7.3°C 0mm 79% 0cm 39° 11°C 0mm 0.27kPa 11399m 1.7m/s 1.9m/s
15:00
2% 7.6°C 0mm 79% 0cm 36° 11°C 0mm 0.27kPa 11358m 2m/s 2.2m/s
16:00
4% 8°C 0mm 80% 0cm 32° 11°C 0mm 0.26kPa 11387m 2.1m/s 2.3m/s
17:00
5% 8.3°C 0mm 82% 0cm 26° 11°C 0.06mm 0.23kPa 11925m 2m/s 2.2m/s
18:00
7% 8.3°C 0mm 83% 0cm 20° 11°C 0.06mm 0.23kPa 15156m 2.1m/s 2.2m/s
19:00
18% 7.8°C 0mm 80% 0cm 14° 11°C 0mm 0.27kPa 24134m 1.8m/s 1.8m/s
20:00
29% 7.2°C 0mm 76% 0cm 7.1° 11°C 0mm 0.32kPa 24134m 1.5m/s 1.3m/s
21:00
40% 6.8°C 0mm 74% 0cm 1.4° 11°C 0mm 0.34kPa 24134m 1.4m/s 1.3m/s
22:00 ☾
41% 6.2°C 0mm 73% 0cm -4.1° 11°C 0mm 0.35kPa 24134m 1.7m/s 1.5m/s
23:00 ☾
41% 5.8°C 0mm 71% 0cm -8.2° 11°C 0mm 0.37kPa 24135m 1.6m/s 1.5m/s
Sun, Aug 16 Sunrise 04:59 Sunset 21:16
24:00 ☾
42% 5.4°C 0mm 70% 0cm -11° 11°C 0mm 0.38kPa 24135m 1.6m/s 1.5m/s
01:00 ☾
46% 6.3°C 0mm 74% 0cm -12° 11°C 0mm 0.34kPa 24135m 1.5m/s 1.5m/s
02:00 ☾
49% 7.2°C 0mm 78% 0cm -12° 11°C 0mm 0.29kPa 24135m 1.4m/s 1.4m/s
03:00 ☾
53% 8.1°C 0mm 82% 0cm -9.3° 11°C 0mm 0.24kPa 24135m 1.3m/s 1.3m/s
04:00 ☾
54% 8.3°C 0mm 83% 0cm -5.6° 11°C 0mm 0.23kPa 24135m 1.3m/s 1.4m/s
05:00
55% 8.6°C 0mm 84% 0cm -0.35° 11°C 0mm 0.21kPa 24135m 1.3m/s 1.4m/s
06:00
56% 8.8°C 0mm 85% 0cm 5.1° 11°C 0mm 0.19kPa 24135m 1.3m/s 1.4m/s
07:00
62% 8.9°C 0mm 85% 0cm 11° 11°C 0mm 0.2kPa 24135m 1.4m/s 1.6m/s
08:00
68% 8.9°C 0mm 85% 0cm 18° 11°C 0mm 0.2kPa 24135m 1.6m/s 1.8m/s
09:00
74% 9°C 0mm 85% 0cm 24° 12°C 0mm 0.21kPa 24135m 1.7m/s 2m/s
10:00
70% 9.1°C 0mm 84% 0cm 30° 12°C 0mm 0.21kPa 24135m 2m/s 2.2m/s
11:00
66% 9.3°C 0mm 84% 0cm 35° 12°C 0mm 0.22kPa 24135m 2.2m/s 2.3m/s
12:00
62% 9.4°C 0mm 84% 0cm 38° 12°C 0mm 0.23kPa 24135m 2.4m/s 2.5m/s
13:00
57% 9.4°C 0mm 84% 0cm 40° 12°C 0mm 0.22kPa 24135m 2.5m/s 2.5m/s
14:00
52% 9.3°C 0mm 84% 0cm 39° 12°C 0mm 0.22kPa 24135m 2.5m/s 2.6m/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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