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Rule Fog Hunter

Fog Hunter Forecast for Chesil Beach, Dorset & Jurassic Coast

Weymouth, England, United Kingdom

A long bank of graded pebbles separates the Fleet lagoon from the Channel, forming a sweeping line toward the Isle of Portland.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread7.7°C
Visibility24134 (Clear)
Relative Humidity61%
Wind Speed2.8m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (85-hour forecast)

  • Fog Probability100% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Dorset & Jurassic Coast. The requirements and hourly values below show how those signals apply at Chesil Beach.

Explore Fog Hunter conditions across Dorset & Jurassic Coast →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Chesil Beach 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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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
Europe/London
Fog Probability
≥ 75.0%
Sat, Aug 22
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%
13:000%
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%
18:000%
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
Europe/London
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 06:08 Sunset 20:15
20:00
38% 9.7°C 0mm 61% 0cm 1.9° 17°C 0mm 0.78kPa 24134m 2.8m/s 2.8m/s
21:00 ☾
24% 9.9°C 0mm 61% 0cm -7.2° 18°C 0mm 0.78kPa 24134m 2.7m/s 2.5m/s
22:00 ☾
10% 10°C 0mm 62% 0cm -15° 18°C 0mm 0.76kPa 24135m 3.4m/s 3m/s
23:00 ☾
7% 11°C 0mm 64% 0cm -21° 18°C 0mm 0.73kPa 24134m 3.8m/s 2.8m/s
Sun, Aug 23 Sunrise 06:08 Sunset 20:15
24:00 ☾
4% 10°C 0mm 63% 0cm -26° 17°C 0mm 0.74kPa 24134m 2.9m/s 2.3m/s
01:00 ☾
1% 9.8°C 0mm 63% 0cm -28° 17°C 0mm 0.72kPa 24134m 3.3m/s 3m/s
02:00 ☾
1% 9.1°C 0mm 61% 0cm -27° 17°C 0mm 0.73kPa 24134m 3m/s 2.7m/s
03:00 ☾
1% 10°C 0mm 64% 0cm -24° 17°C 0mm 0.71kPa 24134m 3.7m/s 2.7m/s
04:00 ☾
1% 12°C 0mm 67% 0cm -18° 18°C 0mm 0.67kPa 24134m 4.9m/s 3.8m/s
05:00 ☾
1% 13°C 0mm 71% 0cm -11° 18°C 0mm 0.6kPa 24134m 5.1m/s 4.4m/s
06:00 ☾
0% 13°C 0mm 73% 0cm -2.2° 18°C 0mm 0.56kPa 24135m 5m/s 4.7m/s
07:00
0% 13°C 0mm 72% 0cm 7° 18°C 0.06mm 0.57kPa 24135m 4.9m/s 4.9m/s
08:00
12% 13°C 0mm 71% 0cm 16° 18°C 0mm 0.59kPa 24135m 5.2m/s 5.2m/s
09:00
25% 13°C 0mm 71% 0cm 26° 18°C 0mm 0.59kPa 24134m 5.5m/s 5.5m/s
10:00
37% 13°C 0mm 71% 0cm 35° 18°C 0.06mm 0.59kPa 24134m 6.3m/s 6.1m/s
11:00
40% 13°C 0mm 72% 0cm 42° 18°C 0.13mm 0.58kPa 24134m 6.9m/s 6.8m/s
12:00
42% 13°C 0mm 71% 0cm 48° 18°C 0.13mm 0.58kPa 24135m 7.1m/s 6.9m/s
13:00
45% 12°C 0mm 71% 0cm 51° 18°C 0.13mm 0.6kPa 24135m 7.2m/s 6.9m/s
14:00
57% 12°C 0mm 70% 0cm 50° 18°C 0mm 0.61kPa 24135m 7.3m/s 6.9m/s
15:00
68% 12°C 0mm 69% 0cm 45° 18°C 0mm 0.63kPa 24134m 7.5m/s 7m/s
16:00
80% 12°C 0mm 69% 0cm 38° 18°C 0mm 0.63kPa 24135m 7.5m/s 6.8m/s
17:00
76% 12°C 0mm 69% 0cm 29° 18°C 0mm 0.63kPa 24135m 7.1m/s 6m/s
18:00
71% 12°C 0mm 70% 0cm 20° 18°C 0mm 0.61kPa 24134m 7.5m/s 5.8m/s
19:00
67% 13°C 0mm 71% 0cm 11° 18°C 0mm 0.6kPa 24135m 8.1m/s 5.7m/s
20:00
57% 13°C 0mm 72% 0cm 1.6° 18°C 0mm 0.57kPa 24134m 9.4m/s 6m/s
21:00 ☾
46% 13°C 0mm 72% 0cm -7.5° 18°C 0mm 0.58kPa 24134m 10m/s 6.4m/s
22:00 ☾
36% 13°C 0mm 72% 0cm -15° 18°C 0mm 0.57kPa 24134m 10m/s 6.6m/s
23:00 ☾
31% 14°C 0mm 74% 0cm -22° 18°C 0mm 0.54kPa 24134m 10m/s 6.4m/s
Mon, Aug 24 Sunrise 06:10 Sunset 20:13
24:00 ☾
26% 14°C 0mm 74% 0cm -26° 18°C 0mm 0.55kPa 24134m 10m/s 6.5m/s
01:00 ☾
21% 13°C 0mm 72% 0cm -28° 18°C 0mm 0.59kPa 24134m 11m/s 7m/s
02:00 ☾
20% 13°C 0mm 73% 0cm -27° 18°C 0mm 0.56kPa 24134m 12m/s 8.4m/s
03:00 ☾
20% 14°C 0mm 75% 0cm -24° 18°C 0mm 0.52kPa 24134m 12m/s 9m/s
04:00 ☾
19% 14°C 0mm 77% 0cm -18° 18°C 0mm 0.47kPa 24135m 12m/s 9.3m/s
05:00 ☾
15% 14°C 0mm 77% 0cm -11° 18°C 0mm 0.47kPa 24134m 12m/s 9.7m/s
06:00 ☾
12% 14°C 0mm 76% 0cm -2.4° 18°C 0mm 0.48kPa 24134m 12m/s 10m/s
07:00
8% 13°C 0mm 76% 0cm 6.7° 18°C 0mm 0.5kPa 24134m 13m/s 11m/s
08:00
6% 13°C 0mm 74% 0cm 16° 18°C 0mm 0.53kPa 24134m 13m/s 11m/s
09:00
4% 13°C 0mm 74% 0cm 26° 18°C 0mm 0.53kPa 24135m 14m/s 12m/s
10:00
2% 13°C 0mm 74% 0cm 34° 18°C 0mm 0.54kPa 24135m 14m/s 12m/s
11:00
1% 13°C 0mm 73% 0cm 42° 18°C 0mm 0.55kPa 24134m 14m/s 13m/s
12:00
1% 13°C 0mm 72% 0cm 48° 18°C 0mm 0.57kPa 24134m 15m/s 13m/s
13:00
0% 13°C 0mm 73% 0cm 50° 18°C 0mm 0.57kPa 24134m 14m/s 12m/s
14:00
1% 13°C 0mm 72% 0cm 49° 18°C 0mm 0.59kPa 24134m 15m/s 12m/s
15:00
2% 13°C 0mm 72% 0cm 45° 18°C 0mm 0.59kPa 24135m 15m/s 12m/s
16:00
3% 13°C 0mm 71% 0cm 38° 19°C 0mm 0.61kPa 24134m 15m/s 12m/s
17:00
2% 13°C 0mm 68% 0cm 29° 19°C 0mm 0.7kPa 24135m 15m/s 11m/s
18:00
1% 12°C 0mm 64% 0cm 20° 19°C 0mm 0.81kPa 24134m 15m/s 12m/s
19:00
0% 12°C 0mm 61% 0cm 10° 20°C 0mm 0.89kPa 24135m 17m/s 12m/s
20:00
4% 11°C 0mm 58% 0cm 1.3° 20°C 0mm 0.97kPa 24134m 18m/s 13m/s
21:00 ☾
8% 12°C 0mm 59% 0cm -7.8° 20°C 0mm 0.96kPa 24134m 18m/s 12m/s
22:00 ☾
12% 12°C 0mm 64% 0cm -16° 19°C 0.06mm 0.8kPa 24134m 18m/s 12m/s
23:00 ☾
9% 14°C 0mm 74% 0cm -22° 18°C 0.13mm 0.54kPa 24135m 17m/s 12m/s
Tue, Aug 25 Sunrise 06:11 Sunset 20:11
24:00 ☾
7% 14°C 0mm 79% 0cm -27° 18°C 0.31mm 0.43kPa 18411m 17m/s 12m/s
01:00 ☾
4% 14°C 0mm 80% 0cm -28° 18°C 0.38mm 0.41kPa 24134m 16m/s 11m/s
02:00 ☾
4% 14°C 0mm 79% 0cm -28° 18°C 0.25mm 0.44kPa 24134m 15m/s 11m/s
03:00 ☾
5% 14°C 0mm 78% 0cm -24° 18°C 0.13mm 0.47kPa 24134m 14m/s 11m/s
04:00 ☾
5% 15°C 0mm 76% 0cm -19° 19°C 0mm 0.51kPa 24135m 14m/s 11m/s
05:00 ☾
6% 15°C 0mm 76% 0cm -11° 19°C 0mm 0.51kPa 24135m 13m/s 10m/s
06:00 ☾
6% 15°C 0mm 77% 0cm -2.7° 19°C 0mm 0.51kPa 24135m 13m/s 9.6m/s
07:00
7% 15°C 0mm 77% 0cm 6.5° 19°C 0mm 0.51kPa 24135m 12m/s 9.1m/s
08:00
10% 15°C 0mm 77% 0cm 16° 19°C 0mm 0.49kPa 24135m 12m/s 8.4m/s
09:00
12% 15°C 0mm 78% 0cm 25° 19°C 0mm 0.47kPa 24135m 11m/s 7.6m/s
10:00
15% 15°C 0mm 79% 0cm 34° 19°C 0mm 0.46kPa 24135m 9.7m/s 6.9m/s
11:00
13% 15°C 0mm 79% 0cm 42° 19°C 0.06mm 0.45kPa 24135m 9.6m/s 6.8m/s
12:00
12% 15°C 0mm 80% 0cm 47° 19°C 0.13mm 0.43kPa 24135m 9.4m/s 6.7m/s
13:00
10% 15°C 0mm 80% 0cm 50° 19°C 0.19mm 0.42kPa 24135m 9.2m/s 6.6m/s
14:00
14% 16°C 0mm 82% 0cm 49° 19°C 0.27mm 0.39kPa 24135m 8.2m/s 5.8m/s
15:00
18% 16°C 0mm 84% 0cm 44° 19°C 0.35mm 0.35kPa 24135m 7.1m/s 5.1m/s
16:00
22% 16°C 0mm 85% 0cm 37° 19°C 0.44mm 0.31kPa 24135m 6m/s 4.3m/s
17:00
16% 16°C 0mm 87% 0cm 29° 18°C 0.54mm 0.29kPa 24135m 4.6m/s 3.4m/s
18:00
11% 16°C 0mm 88% 0cm 20° 18°C 0.65mm 0.26kPa 24135m 3.1m/s 2.5m/s
19:00
5% 17°C 0mm 89% 0cm 10° 18°C 0.75mm 0.23kPa 24135m 1.6m/s 1.6m/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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