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Rule Fog Hunter

Ribeira Grande - Fog Hunter - Azores

Ribeira Grande, Azores, Portugal

Thick, moody fog for atmospheric forest and landscape shots

No opportunities right now
Here’s what usually blocks matches

No Fog Hunter opportunities in the next 14 days

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Rule requirements (key thresholds)
Fog Probability · ≥ 60.0%

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Fog Probability 100% failing

Currently

Real-time conditions
Dewpoint Spread2.0°C
Visibility24134 (Clear)
Relative Humidity88%
Wind Speed4.0m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Azores

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

What this forecast looks for

Plain-language explanation from the rule

This forecast predicts when volcanic topography and Atlantic weather create dramatic fog conditions across the Azores archipelago. We track humidity, temperature inversions, wind patterns, and elevation to identify when fog fills volcanic calderas while crater rims emerge above, or when ocean mist wraps coastal peaks.

The Azores' volcanic landscape creates natural bowls—massive calderas like Sete Cidades and Lagoa do Fogo—that trap fog and cloud inversions while higher rim viewpoints stay clear. The islands' mid-Atlantic position means frequent interaction with marine air masses, creating the notorious "four seasons in one day" weather that produces ever-changing fog conditions.

What makes Azores fog photography special:

  • Crater inversions - Sete Cidades caldera fills with fog while rim viewpoints offer views of twin lakes emerging from mist
  • Volcanic drama - Pico mountain's 2,351-metre peak pierces clouds, visible from neighboring islands when weather clears
  • Geothermal atmosphere - Furnas valley combines volcanic steam with natural fog, creating otherworldly layered mist
  • Hydrangea tunnels - Blue and pink hydrangeas lining roads disappear into fog during summer flowering season

Miradouro da Vista do Rei overlooking Sete Cidades becomes magical when fog partially fills the caldera—arrive at dawn to catch twin lakes emerging from white mist. Lagoa do Fogo's crater rim provides spectacular inversions when fog fills the interior while you stand in sunshine. Furnas valley combines natural fog with geothermal steam rising from fumaroles, creating complex layers especially atmospheric in early morning. From Faial island, Pico mountain appears and disappears through ocean clouds. The hydrangea-lined roads of São Miguel take on fairy-tale quality when fog drifts through in June and July. Best conditions occur when Atlantic weather systems move through, typically autumn through spring.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 92 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Atlantic/Azores
Fog Probability
≥ 60.0%
Wed, Apr 8
04:000%
05:000%
06:000%
07:000%
08:000%
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10:000%
11:000%
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Thu, Apr 9
24:000%
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Fri, Apr 10
24:000%
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07:000%
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Sat, Apr 11
24:000%
01:000%
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23:000%
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/Azores
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, Apr 9 Sunrise 07:27 Sunset 20:25
01:00
35% 14°C 0.01mm 88% 0cm -42° 16°C 0mm 0.21kPa 24134m 6.9m/s 4m/s
02:00
43% 14°C 0.01mm 87% 0cm -44° 16°C 0mm 0.23kPa 24135m 6.3m/s 3.7m/s
03:00
52% 14°C 0.01mm 88% 0cm -42° 16°C 0mm 0.22kPa 24135m 5.8m/s 3.4m/s
04:00
44% 14°C 0.01mm 88% 0cm -36° 16°C 0.06mm 0.21kPa 24135m 5.1m/s 3.2m/s
05:00
35% 14°C 0.02mm 90% 0cm -27° 16°C 0.06mm 0.18kPa 24134m 5.4m/s 3.1m/s
06:00
27% 14°C 0mm 91% 0cm -17° 16°C 0.06mm 0.17kPa 24134m 4.8m/s 2.9m/s
07:00
23% 14°C 0mm 90% 0cm -6.1° 16°C 0mm 0.17kPa 24134m 3m/s 2.4m/s
08:00
20% 14°C 0mm 90% 0cm 5.6° 16°C 0.06mm 0.17kPa 24135m 3.3m/s 2.8m/s
09:00
16% 14°C 0mm 90% 0cm 17° 16°C 0.06mm 0.19kPa 24134m 3m/s 2.7m/s
10:00
18% 14°C 0.01mm 88% 0cm 29° 16°C 0.06mm 0.22kPa 24135m 3m/s 2.7m/s
11:00
21% 14°C 0mm 87% 0cm 40° 16°C 0.13mm 0.24kPa 24135m 2.8m/s 2.7m/s
12:00
23% 14°C 0mm 86% 0cm 50° 16°C 0.13mm 0.27kPa 24135m 3.2m/s 2.9m/s
13:00
36% 14°C 0mm 85% 0cm 57° 17°C 0mm 0.29kPa 24135m 2.8m/s 2.7m/s
14:00
48% 14°C 0mm 84% 0cm 59° 17°C 0.06mm 0.31kPa 24134m 2.7m/s 2.6m/s
15:00
61% 14°C 0mm 82% 0cm 56° 17°C 0.06mm 0.35kPa 24135m 2m/s 2m/s
16:00
61% 14°C 0mm 83% 0cm 49° 17°C 0.06mm 0.33kPa 24134m 3.7m/s 3.5m/s
17:00
62% 14°C 0mm 82% 0cm 39° 17°C 0.06mm 0.34kPa 24134m 4.9m/s 3.9m/s
18:00
62% 14°C 0.01mm 82% 0cm 27° 17°C 0.06mm 0.35kPa 24135m 4m/s 3m/s
19:00
59% 14°C 0mm 82% 0cm 16° 17°C 0mm 0.34kPa 24135m 4m/s 3.1m/s
20:00
57% 14°C 0mm 85% 0cm 4.3° 17°C 0mm 0.29kPa 24134m 3.3m/s 2.7m/s
21:00
54% 14°C 0mm 87% 0cm -7.3° 16°C 0mm 0.24kPa 24134m 3.1m/s 2.8m/s
22:00
60% 14°C 0mm 88% 0cm -18° 16°C 0mm 0.23kPa 24135m 2.4m/s 2.2m/s
23:00
66% 14°C 0.02mm 88% 0cm -28° 16°C 0.06mm 0.22kPa 24134m 3m/s 2.6m/s
Fri, Apr 10 Sunrise 07:26 Sunset 20:26
24:00
72% 14°C 0mm 88% 0cm -36° 16°C 0.06mm 0.22kPa 24135m 3m/s 2.5m/s
01:00
71% 14°C 0mm 87% 0cm -42° 16°C 0.06mm 0.23kPa 24134m 5.3m/s 4.2m/s
02:00
70% 14°C 0mm 90% 0cm -44° 16°C 0.06mm 0.18kPa 24134m 6.5m/s 5.4m/s
03:00
69% 14°C 0mm 90% 0cm -41° 16°C 0.06mm 0.18kPa 24135m 7.2m/s 5.4m/s
04:00
70% 14°C 0mm 89% 0cm -35° 16°C 0.13mm 0.2kPa 24134m 7.7m/s 5.7m/s
05:00
70% 13°C 0mm 85% 0cm -27° 16°C 0.13mm 0.27kPa 24134m 7.6m/s 5.6m/s
06:00
71% 13°C 0mm 83% 0cm -17° 15°C 0.13mm 0.3kPa 24135m 6.9m/s 4.2m/s
07:00
67% 13°C 0mm 84% 0cm -5.8° 16°C 0mm 0.29kPa 24134m 7.7m/s 4m/s
08:00
62% 13°C 0mm 83% 0cm 5.9° 16°C 0mm 0.31kPa 24134m 8.9m/s 4.9m/s
09:00
58% 13°C 0mm 85% 0cm 18° 16°C 0mm 0.27kPa 24135m 9.2m/s 6.2m/s
10:00
55% 14°C 0mm 88% 0cm 29° 16°C 0mm 0.22kPa 24135m 9.3m/s 6m/s
11:00
53% 14°C 0mm 88% 0cm 40° 16°C 0mm 0.21kPa 24134m 9m/s 5.5m/s
12:00
50% 14°C 0mm 88% 0cm 50° 16°C 0mm 0.22kPa 24134m 8.8m/s 5.3m/s
13:00
40% 14°C 0mm 88% 0cm 57° 16°C 0mm 0.23kPa 24134m 9.2m/s 5.4m/s
14:00
29% 14°C 0mm 87% 0cm 60° 16°C 0mm 0.24kPa 24134m 9.3m/s 6.1m/s
15:00
19% 14°C 0mm 89% 0cm 56° 16°C 0mm 0.21kPa 24134m 8.7m/s 6.2m/s
16:00
14% 14°C 0.01mm 90% 0cm 49° 16°C 0.06mm 0.17kPa 24134m 8.3m/s 7.3m/s
17:00
8% 13°C 0.01mm 86% 0cm 39° 16°C 0.13mm 0.25kPa 24135m 8.9m/s 7.7m/s
18:00
3% 13°C 0mm 85% 0cm 28° 16°C 0.13mm 0.26kPa 24135m 8.2m/s 7.1m/s
19:00
2% 13°C 0mm 82% 0cm 16° 15°C 0mm 0.31kPa 24135m 8.4m/s 7.6m/s
20:00
2% 12°C 0mm 81% 0cm 4.5° 15°C 0.06mm 0.33kPa 24134m 8.4m/s 7.9m/s
21:00
1% 11°C 0.01mm 80% 0cm -7.1° 15°C 0.06mm 0.34kPa 24135m 8.8m/s 8.9m/s
22:00
1% 11°C 0.01mm 78% 0cm -18° 15°C 0.06mm 0.36kPa 24134m 9.3m/s 9.1m/s
23:00
1% 9.7°C 0mm 73% 0cm -28° 14°C 0.06mm 0.44kPa 24135m 8.7m/s 8.5m/s
Sat, Apr 11 Sunrise 07:24 Sunset 20:27
24:00
1% 8.5°C 0mm 66% 0cm -36° 15°C 0.06mm 0.56kPa 24134m 8.6m/s 8.5m/s
01:00
6% 7.7°C 0mm 64% 0cm -41° 14°C 0mm 0.59kPa 24134m 8.1m/s 8.4m/s
02:00
11% 7.5°C 0mm 65% 0cm -43° 14°C 0mm 0.56kPa 24134m 7.6m/s 7.9m/s
03:00
16% 7.1°C 0mm 64% 0cm -41° 14°C 0mm 0.57kPa 24135m 7.4m/s 7.6m/s
04:00
12% 6.6°C 0mm 62% 0cm -35° 14°C 0mm 0.59kPa 24135m 7m/s 7.1m/s
05:00
8% 6.2°C 0mm 61% 0cm -27° 14°C 0mm 0.61kPa 24135m 6.9m/s 6.9m/s
06:00
4% 6.4°C 0.01mm 63% 0cm -17° 13°C 0mm 0.57kPa 24135m 6.5m/s 7m/s
07:00
4% 5.8°C 0.007mm 61% 0cm -5.5° 13°C 0mm 0.59kPa 24135m 4.8m/s 4.9m/s
08:00
3% 5.3°C 0.003mm 60% 0cm 6.1° 13°C 0mm 0.6kPa 24135m 3.1m/s 2.7m/s
09:00
3% 4.7°C 0mm 58% 0cm 18° 13°C 0mm 0.62kPa 24135m 1.4m/s 0.61m/s
10:00
3% 5°C 0mm 60% 0cm 29° 13°C 0mm 0.58kPa 24135m 1.3m/s 0.42m/s
11:00
3% 5.3°C 0mm 62% 0cm 40° 12°C 0mm 0.54kPa 24135m 1.2m/s 0.23m/s
12:00
3% 5.5°C 0mm 64% 0cm 50° 12°C 0mm 0.51kPa 24135m 1.1m/s 0.05m/s
13:00
4% 5.4°C 0mm 63% 0cm 57° 12°C 0mm 0.51kPa 24135m 1.2m/s 0.39m/s
14:00
5% 5.2°C 0mm 63% 0cm 60° 12°C 0mm 0.52kPa 24135m 1.3m/s 0.73m/s
15:00
6% 5.1°C 0mm 62% 0cm 57° 12°C 0mm 0.53kPa 24135m 1.4m/s 1.1m/s
16:00
5% 5.3°C 0mm 63% 0cm 49° 12°C 0mm 0.52kPa 24135m 1.9m/s 1.7m/s
17:00
3% 5.5°C 0mm 64% 0cm 39° 12°C 0mm 0.51kPa 24135m 2.4m/s 2.2m/s
18:00
2% 5.7°C 0mm 65% 0cm 28° 12°C 0mm 0.49kPa 24135m 2.9m/s 2.8m/s
19:00
4% 5.8°C 0mm 66% 0cm 16° 12°C 0mm 0.47kPa 24135m 3.6m/s 3.4m/s
20:00
5% 5.9°C 0mm 67% 0cm 4.7° 12°C 0mm 0.45kPa 24135m 4.3m/s 4m/s
21:00
7% 6°C 0mm 68% 0cm -6.9° 12°C 0mm 0.43kPa 24135m 4.9m/s 4.6m/s
22:00
6% 6.4°C 0mm 70% 0cm -18° 12°C 0mm 0.4kPa 24135m 5m/s 4.6m/s
23:00
5% 6.7°C 0mm 72% 0cm -28° 12°C 0mm 0.38kPa 24135m 5.2m/s 4.6m/s
Sun, Apr 12 Sunrise 07:23 Sunset 20:28
24:00
4% 7°C 0mm 74% 0cm -36° 12°C 0mm 0.35kPa 24135m 5.3m/s 4.6m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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