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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 Spread1.6°C
Visibility8506 (Moderate)
Relative Humidity89%
Wind Speed6.1m/s (moderate winds)

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 (95-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
4
recorded matching windows · 77% 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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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
Atlantic/Reykjavik
Fog Probability
≥ 75.0%
Fri, Aug 21
19:000%
20:000%
21:000%
22:000%
23:000%
Sat, Aug 22
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 23
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:0061%
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%
01:000%
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 05:18 Sunset 20:55
20:00
0% 9.1°C 0.06mm 89% 0cm 5° 11°C 0.13mm 0.14kPa 8506m 7.8m/s 6.1m/s
21:00 ☾
0% 9.1°C 0.13mm 92% 0cm -0.96° 10°C 0.31mm 0.11kPa 8506m 8.3m/s 6.4m/s
22:00 ☾
0% 9.5°C 0.54mm 93% 0cm -6.4° 11°C 0.81mm 0.09kPa 5747m 8.3m/s 5.9m/s
23:00 ☾
0% 9.8°C 0.85mm 95% 0cm -11° 11°C 1.7mm 0.06kPa 4435m 8.8m/s 6.4m/s
Sun, Aug 23 Sunrise 05:21 Sunset 20:51
24:00 ☾
0% 9.9°C 1.4mm 95% 0cm -13° 11°C 2.9mm 0.07kPa 3392m 8.4m/s 6.1m/s
01:00 ☾
0% 10°C 1.1mm 96% 0cm -14° 11°C 1.4mm 0.05kPa 3378m 8.6m/s 6.2m/s
02:00 ☾
0% 10°C 1.3mm 96% 0cm -14° 11°C 2.8mm 0.04kPa 2723m 8.8m/s 6.1m/s
03:00 ☾
0% 10°C 0.79mm 96% 0cm -11° 11°C 3.8mm 0.05kPa 1884m 7.7m/s 5.4m/s
04:00 ☾
0% 10°C 0.82mm 96% 0cm -7.7° 11°C 4.8mm 0.05kPa 1168m 6.6m/s 4.5m/s
05:00 ☾
0% 10°C 1.4mm 96% 0cm -2.6° 11°C 5.8mm 0.05kPa 988m 5.6m/s 3.7m/s
06:00
0% 10°C 1.1mm 96% 0cm 3.3° 11°C 7.3mm 0.05kPa 888m 5.2m/s 3.3m/s
07:00
0% 10°C 0.6mm 97% 0cm 9.5° 11°C 0.81mm 0.04kPa 709m 5.1m/s 3.3m/s
08:00
0% 10°C 0.35mm 96% 0cm 16° 11°C 1.8mm 0.05kPa 624m 4.1m/s 2.7m/s
09:00
0% 9.9°C 0mm 92% 0cm 22° 11°C 1.8mm 0.1kPa 1150m 2.6m/s 1.8m/s
10:00
0% 9.8°C 0mm 90% 0cm 28° 11°C 1.8mm 0.14kPa 8718m 1.9m/s 1.5m/s
11:00
0% 9.8°C 0mm 89% 0cm 33° 11°C 1.9mm 0.14kPa 11017m 2.9m/s 2.5m/s
12:00
0% 9.3°C 0mm 85% 0cm 36° 12°C 1.9mm 0.21kPa 11866m 3.3m/s 2.8m/s
13:00
2% 8.8°C 0.01mm 80% 0cm 37° 12°C 0mm 0.28kPa 11866m 2.7m/s 2.6m/s
14:00
3% 8.4°C 0mm 77% 0cm 36° 12°C 0mm 0.32kPa 13431m 3m/s 2.7m/s
15:00
5% 7.9°C 0mm 75% 0cm 34° 12°C 0mm 0.35kPa 11855m 3.4m/s 3.1m/s
16:00
4% 7.6°C 0mm 73% 0cm 29° 12°C 0mm 0.38kPa 11347m 3m/s 2.9m/s
17:00
4% 7.5°C 0mm 72% 0cm 24° 12°C 0mm 0.4kPa 11962m 2.8m/s 2.8m/s
18:00
3% 7.1°C 0mm 72% 0cm 18° 12°C 0mm 0.4kPa 14430m 3.2m/s 3.1m/s
19:00
10% 6.7°C 0mm 71% 0cm 11° 12°C 0mm 0.4kPa 24134m 3.5m/s 3.2m/s
20:00
18% 5.9°C 0mm 69% 0cm 4.6° 11°C 0mm 0.42kPa 24134m 3.3m/s 3.1m/s
21:00 ☾
25% 5°C 0mm 66% 0cm -1.4° 11°C 0mm 0.45kPa 24134m 3.1m/s 3m/s
22:00 ☾
21% 4.1°C 0mm 62% 0cm -6.8° 11°C 0mm 0.49kPa 24134m 3.1m/s 2.9m/s
23:00 ☾
18% 3.6°C 0mm 61% 0cm -11° 11°C 0mm 0.5kPa 24134m 2.7m/s 2.5m/s
Mon, Aug 24 Sunrise 05:24 Sunset 20:48
24:00 ☾
14% 3.6°C 0mm 61% 0cm -14° 11°C 0mm 0.5kPa 24134m 2.4m/s 2.2m/s
01:00 ☾
10% 3.8°C 0mm 62% 0cm -15° 11°C 0mm 0.48kPa 24134m 2m/s 1.7m/s
02:00 ☾
5% 4.5°C 0mm 68% 0cm -14° 10°C 0mm 0.41kPa 24134m 1.5m/s 0.8m/s
03:00 ☾
1% 5.7°C 0mm 75% 0cm -12° 9.9°C 0mm 0.3kPa 24135m 1.8m/s 1.7m/s
04:00 ☾
1% 6.2°C 0mm 80% 0cm -8° 9.6°C 0mm 0.24kPa 24134m 4.3m/s 3.7m/s
05:00 ☾
0% 6.6°C 0mm 86% 0cm -2.9° 8.8°C 0mm 0.16kPa 24134m 5.3m/s 4m/s
06:00
0% 6.9°C 0mm 89% 0cm 3° 8.6°C 0mm 0.13kPa 21620m 5.4m/s 4.4m/s
07:00
0% 6.2°C 0mm 82% 0cm 9.2° 9°C 0mm 0.2kPa 24134m 5.8m/s 4.3m/s
08:00
0% 5.8°C 0.16mm 78% 0cm 16° 9.5°C 0.06mm 0.27kPa 23348m 6.8m/s 4.3m/s
09:00
0% 6.3°C 0.86mm 85% 0cm 22° 8.6°C 0.63mm 0.16kPa 6256m 7.1m/s 4.9m/s
10:00
0% 6.6°C 1.4mm 91% 0cm 28° 8°C 1.9mm 0.09kPa 3771m 6.7m/s 4.7m/s
11:00
0% 6.9°C 1.8mm 94% 0cm 32° 7.9°C 3.6mm 0.07kPa 3246m 6.7m/s 4.5m/s
12:00
0% 6.9°C 2.2mm 94% 0cm 36° 7.8°C 5.8mm 0.06kPa 2702m 6.7m/s 4.8m/s
13:00
0% 7.2°C 3.6mm 94% 0cm 37° 8.1°C 3.1mm 0.06kPa 2558m 7.9m/s 5.7m/s
14:00
0% 7.9°C 4.8mm 97% 0cm 36° 8.4°C 7.3mm 0.04kPa 1695m 9.2m/s 5.9m/s
15:00
0% 8.5°C 4.1mm 99% 0cm 33° 8.7°C 12mm 0.01kPa 218m 8.7m/s 5.5m/s
16:00
0% 8.5°C 3.4mm 99% 0cm 29° 8.6°C 15mm 0.01kPa 191m 7.7m/s 5.4m/s
17:00
0% 10°C 5.9mm 99% 0cm 23° 10°C 19mm 0.01kPa 191m 11m/s 7.7m/s
18:00
0% 9.9°C 9.2mm 99% 0cm 17° 10°C 26mm 0.01kPa 153m 14m/s 8.2m/s
19:00
1% 9.6°C 11mm 99% 0cm 11° 9.8°C 8.6mm 0.01kPa 223m 13m/s 6.8m/s
20:00
1% 10°C 7.8mm 99% 0cm 4.3° 10°C 16mm 0.01kPa 326m 13m/s 6.8m/s
21:00 ☾
2% 10°C 1.9mm 97% 0cm -1.7° 11°C 20mm 0.04kPa 919m 12m/s 7.3m/s
22:00 ☾
3% 9.3°C 0.22mm 94% 0cm -7.1° 10°C 21mm 0.08kPa 1722m 12m/s 7.7m/s
23:00 ☾
3% 9°C 0.12mm 93% 0cm -11° 10°C 21mm 0.09kPa 1423m 12m/s 7.2m/s
Tue, Aug 25 Sunrise 05:27 Sunset 20:44
24:00 ☾
4% 8.8°C 0.01mm 92% 0cm -14° 10°C 22mm 0.1kPa 2159m 12m/s 7.7m/s
01:00 ☾
6% 8.8°C 0.007mm 92% 0cm -15° 10°C 15mm 0.1kPa 9484m 8.6m/s 5.4m/s
02:00 ☾
7% 8.8°C 0.003mm 91% 0cm -14° 10°C 7.4mm 0.11kPa 16809m 5.1m/s 3.1m/s
03:00 ☾
9% 8.9°C 0mm 91% 0cm -12° 10°C 0.25mm 0.11kPa 24135m 1.6m/s 0.81m/s
04:00 ☾
9% 9°C 0.007mm 91% 0cm -8.3° 10°C 0.29mm 0.12kPa 24135m 1.7m/s 1.1m/s
05:00 ☾
9% 9.1°C 0.01mm 90% 0cm -3.2° 11°C 0.33mm 0.12kPa 24135m 1.7m/s 1.4m/s
06:00
9% 9.2°C 0.02mm 90% 0cm 2.8° 11°C 0.38mm 0.13kPa 24135m 1.7m/s 1.7m/s
07:00
9% 9.3°C 0.01mm 89% 0cm 9° 11°C 0.25mm 0.14kPa 24135m 2.1m/s 2m/s
08:00
9% 9.5°C 0.007mm 89% 0cm 15° 11°C 0.13mm 0.15kPa 24135m 2.4m/s 2.3m/s
09:00
9% 9.6°C 0mm 88% 0cm 22° 11°C 0mm 0.16kPa 24135m 2.7m/s 2.6m/s
10:00
8% 9.6°C 0mm 88% 0cm 27° 12°C 0mm 0.16kPa 24135m 2.7m/s 2.6m/s
11:00
8% 9.7°C 0mm 88% 0cm 32° 12°C 0mm 0.17kPa 24135m 2.7m/s 2.6m/s
12:00
7% 9.8°C 0mm 88% 0cm 35° 12°C 0mm 0.17kPa 24135m 2.7m/s 2.7m/s
13:00
7% 9.5°C 0mm 87% 0cm 37° 12°C 0mm 0.18kPa 24135m 2.7m/s 2.7m/s
14:00
8% 9.3°C 0mm 87% 0cm 36° 11°C 0mm 0.18kPa 24135m 2.7m/s 2.7m/s
15:00
8% 9.1°C 0mm 86% 0cm 33° 11°C 0mm 0.18kPa 24135m 2.7m/s 2.7m/s
16:00
6% 8.5°C 0mm 83% 0cm 29° 11°C 0mm 0.23kPa 24135m 2.9m/s 2.8m/s
17:00
4% 7.9°C 0mm 79% 0cm 23° 11°C 0mm 0.28kPa 24135m 3m/s 2.9m/s
18:00
2% 7.3°C 0mm 76% 0cm 17° 11°C 0mm 0.33kPa 24135m 3.1m/s 3.1m/s
19:00
2% 7.7°C 0.003mm 77% 0cm 10° 11°C 0mm 0.31kPa 24135m 3.3m/s 3.2m/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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