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Rule Fog Hunter

Morning Mist in Tuscany

Val d'Orcia, Italy

Thick, moody fog for atmospheric forest and landscape shots

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Rome
Next opportunity
Dense Fog (lingering) at Sunrise
Tomorrow · 08:00–09:00 · 1h window
Medium confidence
57%

What this forecast looks for

Plain-language explanation from the rule

Fog Hunter detects atmospheric conditions ideal for moody photography:

  • Fog Probability: Based on humidity, temperature, and dewpoint spread
  • Visibility: Looking for that ethereal, limited visibility effect
  • Wind Speed: Calm conditions help fog form and persist
  • Dewpoint Spread: When air temperature approaches dewpoint, fog forms

Perfect for forest scenes, mountain valleys, and atmospheric landscapes.

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72-hour requirements breakdown

What passed or failed, hour by hour
1matching hours in the next 72 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Rome
Fog Probability
≥ 85.0%
Dewpoint Spread
≤ 2.0°C
Visibility
≤ 3000.0m
Wind Speed
≤ 2.0m/s
Fri, Jan 9
07:000%3.4°C40060m1.4m/s
08:000%2.5°C29940m1.8m/s
09:000%3.6°C43580m1.6m/s
10:000%2.6°C30540m1.5m/s
11:000%2.8°C30860m1.9m/s
12:000%4.7°C49040m4.2m/s
13:000%4.9°C49660m6.6m/s
14:000%6.4°C60200m8.2m/s
15:000%5.5°C53760m8.7m/s
16:000%5°C49760m8.5m/s
17:000%4.2°C43580m7.3m/s
18:000%3.2°C32460m6.7m/s
19:000%2.7°C26620m6.9m/s
20:000%2.5°C25860m6.9m/s
21:000%2.5°C24460m6.3m/s
22:000%2.9°C29060m6.7m/s
23:000%1.8°C15420m7.4m/s
Sat, Jan 10
24:000%1.7°C15000m5.5m/s
01:000%2°C20160m3m/s
02:000%1.7°C15780m2m/s
03:000%1°C7800m4.1m/s
04:000%1°C6920m4.8m/s
05:0065%0.9°C5460m3.5m/s
06:0078%0.7°C4520m2.6m/s
07:0078%0.7°C3700m1.9m/s
08:0094%0.4°C2500m1.8m/s
09:0078%0.7°C3980m2.3m/s
10:000%1.2°C6920m2.1m/s
11:000%2.3°C21620m2.3m/s
12:000%3.6°C35400m3m/s
13:000%4°C40440m3.6m/s
14:000%4.9°C50480m3.6m/s
15:000%6.4°C62240m3.7m/s
16:000%6.1°C62740m2.9m/s
17:000%4.4°C49320m2.2m/s
18:000%5.4°C59400m2.1m/s
19:000%5.3°C60460m2m/s
20:000%4.2°C52240m1.6m/s
21:000%3.6°C44980m1.6m/s
22:000%3.3°C41480m1.3m/s
23:000%4.2°C51620m1.1m/s
Sun, Jan 11
24:000%5.3°C62700m1.4m/s
01:000%5.1°C60940m1.3m/s
02:000%5.1°C59860m1.2m/s
03:000%5.7°C64900m1.4m/s
04:000%5.7°C64120m1.3m/s
05:000%5.9°C65840m1.3m/s
06:000%6.3°C69460m1m/s
07:000%6°C70780m1.1m/s
08:000%5.6°C69000m1.1m/s
09:000%5.8°C67420m0.76m/s
10:000%5.3°C60980m0.81m/s
11:000%9.8°C75680m1m/s
12:000%12°C75980m1.9m/s
13:000%13°C76800m3.8m/s
14:000%11°C75540m4.7m/s
15:000%12°C76040m5m/s
16:000%9°C73620m4.1m/s
17:000%5.9°C61660m3m/s
18:000%4.5°C54200m2.1m/s
19:000%3.6°C44060m2m/s
20:000%2.9°C36640m1.7m/s
21:000%2.5°C31300m1.4m/s
22:000%2.5°C30160m1.6m/s
23:000%2.4°C27100m1.1m/s
Mon, Jan 12
24:000%2.1°C23820m0.92m/s
01:000%1.9°C21560m1.1m/s
02:000%1.9°C22100m1.4m/s
03:000%2.2°C25020m1.6m/s
04:000%2.7°C31980m1.3m/s
05:000%2.7°C33760m1.1m/s
06:000%2.8°C36500m1.1m/s
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/Rome
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Wind Gusts
m/s
Fri, Jan 9 Sunrise 07:44 Sunset 16:56
08:00
4.4°C 0mm 84% 0cm 6.9°C 0mm 0.16kPa 7.6m/s
09:00
4.8°C 0mm 78% 0cm 8.4°C 0mm 0.24kPa 8.3m/s
10:00
6.9°C 0mm 84% 0cm 9.5°C 0mm 0.19kPa 6.7m/s
11:00
7.9°C 0mm 83% 0cm 11°C 0mm 0.22kPa 6.8m/s
12:00
7.6°C 0mm 73% 0cm 12°C 0mm 0.39kPa 9.1m/s
13:00
7.1°C 0mm 72% 0cm 12°C 0mm 0.39kPa 14m/s
14:00
5.5°C 0mm 65% 0cm 12°C 0mm 0.49kPa 17m/s
15:00
5.6°C 0mm 69% 0cm 11°C 0mm 0.41kPa 19m/s
16:00
5°C 0mm 71% 0cm 10°C 0mm 0.36kPa 19m/s
17:00
4.6°C 0mm 75% 0cm 8.8°C 0mm 0.28kPa 18m/s
18:00
4.7°C 0mm 80% 0cm 7.9°C 0mm 0.21kPa 15m/s
19:00
4.7°C 0mm 83% 0cm 7.4°C 0mm 0.17kPa 14m/s
20:00
4.6°C 0mm 84% 0cm 7.1°C 0mm 0.16kPa 15m/s
21:00
4.5°C 0mm 84% 0cm 7°C 0mm 0.16kPa 16m/s
22:00
4.1°C 0mm 82% 0cm 7°C 0mm 0.18kPa 17m/s
23:00
4.9°C 0mm 88% 0cm 6.7°C 0mm 0.12kPa 16m/s
Sat, Jan 10 Sunrise 07:44 Sunset 16:56
24:00
4.7°C 0mm 89% 0cm 6.4°C 0mm 0.11kPa 16m/s
01:00
4.2°C 0mm 87% 0cm 6.2°C 0mm 0.12kPa 13m/s
02:00
3.9°C 0mm 89% 0cm 5.6°C 0.3mm 0.1kPa 11m/s
03:00
4.1°C 0mm 93% 0cm 5.1°C 0.9mm 0.06kPa 12m/s
04:00
3.8°C 0mm 93% 0cm 4.8°C 0.3mm 0.06kPa 13m/s
05:00
3.7°C 0mm 94% 0cm 4.6°C 0mm 0.05kPa 12m/s
06:00
4°C 0mm 95% 0cm 4.7°C 0mm 0.04kPa 10m/s
07:00
3.8°C 0mm 95% 0cm 4.5°C 0mm 0.04kPa 8.9m/s
08:00
3.8°C 0mm 97% 0cm 4.2°C 0mm 0.02kPa 6.5m/s
09:00
4°C 0mm 95% 0cm 4.7°C 0mm 0.04kPa 7.4m/s
10:00
4.3°C 0mm 92% 0cm 5.5°C 0mm 0.07kPa 7.7m/s
11:00
4.2°C 0mm 85% 0cm 6.5°C 0mm 0.15kPa 7.5m/s
12:00
3.5°C 0mm 78% 0cm 7.1°C 0mm 0.22kPa 7m/s
13:00
3.5°C 0mm 76% 0cm 7.5°C 0mm 0.25kPa 7.9m/s
14:00
2.5°C 0mm 71% 0cm 7.4°C 0mm 0.3kPa 9.3m/s
15:00
1.4°C 0mm 64% 0cm 7.8°C 0mm 0.38kPa 8m/s
16:00
0.8°C 0mm 65% 0cm 6.9°C 0mm 0.35kPa 7.8m/s
17:00
0.9°C 0mm 73% 0cm 5.3°C 0mm 0.24kPa 7m/s
18:00
-1.1°C 0mm 68% 0cm 4.3°C 0mm 0.27kPa 8m/s
19:00
-1.8°C 0mm 68% 0cm 3.5°C 0mm 0.25kPa 7.7m/s
20:00
-1.3°C 0mm 74% 0cm 2.9°C 0mm 0.2kPa 8.1m/s
21:00
-1.2°C 0mm 77% 0cm 2.4°C 0mm 0.17kPa 7.1m/s
22:00
-1.1°C 0mm 79% 0cm 2.2°C 0mm 0.15kPa 6.8m/s
23:00
-1.9°C 0mm 74% 0cm 2.3°C 0mm 0.19kPa 6.5m/s
Sun, Jan 11 Sunrise 07:44 Sunset 16:57
24:00
-2.8°C 0mm 68% 0cm 2.5°C 0mm 0.23kPa 6m/s
01:00
-3.1°C 0mm 69% 0cm 2°C 0mm 0.22kPa 6.4m/s
02:00
-3°C 0mm 69% 0cm 2.1°C 0mm 0.22kPa 6.2m/s
03:00
-3.4°C 0mm 66% 0cm 2.3°C 0mm 0.25kPa 6.2m/s
04:00
-3.9°C 0mm 66% 0cm 1.8°C 0mm 0.24kPa 6.4m/s
05:00
-4.5°C 0mm 65% 0cm 1.4°C 0mm 0.24kPa 6.5m/s
06:00
-5°C 0mm 63% 0cm 1.3°C 0mm 0.25kPa 6.2m/s
07:00
-4.9°C 0mm 64% 0cm 1.1°C 0mm 0.24kPa 5.2m/s
08:00
-4.8°C 0mm 66% 0cm 0.8°C 0mm 0.22kPa 5.5m/s
09:00
-4.6°C 0mm 65% 0cm 1.2°C 0mm 0.23kPa 5.8m/s
10:00
-2.3°C 0mm 68% 0cm 3°C 0mm 0.24kPa 5.2m/s
11:00
-4.7°C 0mm 49% 0cm 5.1°C 0mm 0.45kPa 5.7m/s
12:00
-5.5°C 0mm 43% 0cm 6.1°C 0mm 0.54kPa 6m/s
13:00
-6.3°C 0mm 39% 0cm 6.7°C 0mm 0.6kPa 8.1m/s
14:00
-4.8°C 0mm 44% 0cm 6.6°C 0mm 0.55kPa 9.9m/s
15:00
-5.8°C 0mm 42% 0cm 6.2°C 0mm 0.55kPa 11m/s
16:00
-4°C 0mm 52% 0cm 5°C 0mm 0.42kPa 10m/s
17:00
-2.6°C 0mm 65% 0cm 3.3°C 0mm 0.27kPa 8.6m/s
18:00
-2.3°C 0mm 72% 0cm 2.2°C 0mm 0.2kPa 8.1m/s
19:00
-2.3°C 0mm 77% 0cm 1.3°C 0mm 0.15kPa 6.3m/s
20:00
-2.1°C 0mm 81% 0cm 0.8°C 0mm 0.12kPa 6.9m/s
21:00
-2°C 0mm 83% 0cm 0.5°C 0mm 0.11kPa 6.2m/s
22:00
-2.3°C 0mm 83% 0cm 0.2°C 0mm 0.11kPa 5.9m/s
23:00
-2.5°C 0mm 84% 0cm -0.1°C 0mm 0.1kPa 5.9m/s
Mon, Jan 12 Sunrise 07:43 Sunset 16:58
24:00
-2.4°C 0mm 86% 0cm -0.3°C 0mm 0.08kPa 5m/s
01:00
-2.5°C 0mm 87% 0cm -0.6°C 0mm 0.08kPa 4.7m/s
02:00
-2.8°C 0mm 87% 0cm -0.9°C 0mm 0.07kPa 5.4m/s
03:00
-3.4°C 0mm 85% 0cm -1.2°C 0mm 0.08kPa 5.6m/s
04:00
-3.8°C 0mm 82% 0cm -1.1°C 0mm 0.1kPa 6m/s
05:00
-3.9°C 0mm 82% 0cm -1.2°C 0mm 0.1kPa 5.6m/s
06:00
-4.1°C 0mm 81% 0cm -1.3°C 0mm 0.11kPa 4.4m/s
07:00
-4.6°C 0mm 79% 0cm -1.4°C 0mm 0.12kPa 4.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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