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Rule Fire Sky

Sitges - Fire Sky - Spanish Coast & Islands

Sitges, Catalonia, Spain

Those rare, intensely red and orange sunset skies

Currently

Real-time conditions
Low Cloud Cover0%
Mid Cloud Cover0%
High Cloud Cover93%
Aerosol Optical Depth0.2dimensionless
Sun Elevation-33.4° (Astronomical night)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Madrid
fire-sky weather icon
Next opportunity
Excellent Fiery Red Sky at Sunrise
Sitges
Sat, Apr 11 · 07:02–07:55 · 1h window
Medium confidence
56%
🔥Fiery Red Sky Potential83.2%
Low Cloud Cover: 0%
Mid Cloud Cover: 5%
High Cloud Cover: 80%
Sun Elevation: -4.4° (Civil twilight)

What this forecast looks for

Plain-language explanation from the rule

The Canary Islands experience some of the world's most intense fire-sky conditions when Saharan calima—dust and sand blown from Africa—fills the atmosphere. This natural phenomenon transforms ordinary sunsets into apocalyptic displays of crimson, orange, and magenta that can last for hours.

Calima events occur primarily in winter and spring when easterly winds carry Saharan dust across the Atlantic. The volcanic topography provides elevated viewpoints above the densest haze layers, allowing photographers to capture layers of color stratification. Tenerife's Mount Teide and Lanzarote's volcanic peaks become silhouettes against impossibly red skies.

What makes Spanish fire-sky conditions exceptional:

  • Saharan calima - African dust creates unprecedented color intensity during sunset
  • Volcanic silhouettes - Mount Teide, Timanfaya volcanic cones against burning skies
  • Atlantic ocean reflection - Canary Island west coasts mirror fire-sky displays on water
  • Extended duration - Volcanic haze can maintain color for 60+ minutes after sunset

Prime locations include Tenerife's west coast (Playa de las Américas, Los Gigantes cliffs), Lanzarote's Timanfaya volcanic region, and elevated viewpoints throughout the Canaries. Mainland coast occasionally benefits from Saharan dust as well, particularly Andalusia. Monitor AEMET (Spanish weather service) for calima forecasts. The phenomenon creates challenging exposure conditions—bracket shots and shoot RAW for maximum post-processing flexibility.

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72-hour requirements breakdown

What passed or failed, hour by hour
1matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Madrid
Golden Hour
Any
Fiery Red Sky Potential
≥ 65.0%
Precipitation Chance
≤ 15.0%
Visibility
≥ 8000.0m
Wed, Apr 8
03:000%0%24135m
04:000%0%24134m
05:000%0%24135m
06:000%0%24134m
07:0076%0%24134m
08:000%0%24135m
09:000%0%24135m
10:000%0%24134m
11:000%0%24135m
12:000%0%24134m
13:000%0%24135m
14:000%0%24134m
15:000%0%24134m
16:000%0%24134m
17:000%0%24135m
18:000%0%24135m
19:000%0%24134m
20:000%0%24135m
21:004.1%0%24135m
22:000%0%24134m
23:000%0%24134m
Thu, Apr 9
24:000%0%24135m
01:000%0%24135m
02:000%0%24135m
03:000%0%24134m
04:000%0%24135m
05:000%0%24135m
06:000%0%24135m
07:0032%0%24134m
08:000%0%24134m
09:000%0%24134m
10:000%0%24135m
11:000%0%24134m
12:000%0%24135m
13:000%0%24135m
14:000%0%24135m
15:000%0%24135m
16:000%0%24134m
17:000%0%24135m
18:000%0%24134m
19:000%0%24134m
20:000%0%24135m
21:0032%0%24135m
22:000%0%24134m
23:000%0%24134m
Fri, Apr 10
24:000%0%24135m
01:000%0%24134m
02:000%0%24135m
03:000%0%24134m
04:000%0%24134m
05:000%0%24135m
06:000%0%24134m
07:006.4%0%24134m
08:000%0%24135m
09:000%0%24134m
10:000%0%24134m
11:000%0%24135m
12:000%0%24135m
13:000%0%24134m
14:000%0%24134m
15:000%0%24134m
16:000%0%24134m
17:000%0%24134m
18:000%0%24134m
19:000%0%24135m
20:000%0%24135m
21:003.2%0%24135m
22:000%0%24134m
23:000%0%24135m
Sat, Apr 11
24:000%0%24134m
01:000%0%24135m
02:000%0%24134m
03:000%0%24134m
04:000%0%24134m
05:000%0%24135m
06:000%0%24135m
07:0083%0%24135m
08:000%0%24135m
09:000%0%24135m
10:000%0%24135m
11:000%0%24135m
12:000%0%24135m
13:000%0%24135m
14:000%0%24135m
15:000%5%24135m
16:000%10%24135m
17:000%15%24135m
18:000%43%24135m
19:000%72%24135m
20:000%100%24135m
21:001.1%76%24135m
22:000%51%24135m
23:000%27%24135m
Sun, Apr 12
24:000%31%24135m
01:000%34%24135m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fiery Red Sky Potential 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/Madrid
Aerosol Optical Depth (550nm)
Clear Sky Probability (Ensemble)
%
Cloud Cover Uncertainty (Ensemble)
%
Dust AOD (550nm)
Golden Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
RH @ 700 hPa
%
Smoke AOD (550nm)
Solar Elevation
°
Sunshine Duration
seconds
Thu, Apr 9 Sunrise 07:23 Sunset 20:26
04:00
0.2 38% 26% 0.12 - 93% 0% 0% 62% 0.009 -33° 0seconds
05:00
0.2 24% 28% 0.12 - 100% 0% 5% 61% 0.009 -25° 0seconds
06:00
0.21 16% 24% 0.12 - 100% 0% 6% 61% 0.009 -16° 0seconds
07:00
0.21 9% 19% 0.12 - 100% 0% 30% 60% 0.01 -5° 0seconds
08:00
0.22 1% 15% 0.12 - 100% 0% 85% 59% 0.01 6.2° 0seconds
09:00
0.22 1% 15% 0.12 - 95% 0% 74% 57% 0.01 17° 0seconds
10:00
0.23 2% 16% 0.12 - 100% 0% 5% 54% 0.01 28° 3600seconds
11:00
0.23 2% 16% 0.12 - 4% 0% 5% 52% 0.01 39° 3600seconds
12:00
0.22 2% 17% 0.12 - 14% 0% 5% 50% 0.01 48° 3600seconds
13:00
0.21 2% 18% 0.12 - 22% 0% 2% 48% 0.01 54° 3600seconds
14:00
0.21 2% 19% 0.12 - 20% 0% 0% 46% 0.01 56° 3600seconds
15:00
0.2 1% 14% 0.11 - 52% 0% 4% 46% 0.01 53° 3600seconds
16:00
0.19 1% 9% 0.11 - 83% 0% 5% 46% 0.009 46° 3600seconds
17:00
0.19 0% 4% 0.1 - 97% 0% 0% 46% 0.009 37° 3600seconds
18:00
0.18 0% 3% 0.1 - 88% 0% 0% 42% 0.008 26° 3600seconds
19:00
0.18 0% 3% 0.1 - 89% 0% 0% 39% 0.008 15° 3600seconds
20:00
0.18 0% 2% 0.1 - 95% 0% 0% 35% 0.008 4.2° 3600seconds
21:00
0.19 0% 4% 0.1 - 89% 0% 0% 39% 0.008 -6.9° 0seconds
22:00
0.19 0% 7% 0.1 - 99% 1% 0% 43% 0.008 -17° 0seconds
23:00
0.19 0% 9% 0.11 - 38% 3% 0% 47% 0.008 -27° 0seconds
Fri, Apr 10 Sunrise 07:23 Sunset 20:26
24:00
0.18 0% 12% 0.11 - 68% 3% 0% 48% 0.008 -34° 0seconds
01:00
0.18 1% 14% 0.11 - 5% 3% 0% 49% 0.008 -39° 0seconds
02:00
0.19 1% 17% 0.11 - 5% 3% 0% 50% 0.009 -41° 0seconds
03:00
0.19 25% 22% 0.12 - 5% 0% 0% 46% 0.009 -39° 0seconds
04:00
0.19 50% 26% 0.12 - 2% 0% 0% 42% 0.009 -33° 0seconds
05:00
0.19 74% 31% 0.12 - 2% 0% 0% 38% 0.01 -25° 0seconds
06:00
0.19 77% 29% 0.12 - 0% 0% 0% 37% 0.01 -15° 0seconds
07:00
0.19 79% 26% 0.11 - 1% 0% 0% 36% 0.01 -4.7° 0seconds
08:00
0.19 82% 24% 0.11 - 1% 0% 0% 34% 0.01 6.5° 0seconds
09:00
0.19 87% 19% 0.11 - 1% 0% 0% 34% 0.01 18° 3600seconds
10:00
0.19 93% 13% 0.11 - 1% 0% 0% 34% 0.01 29° 3600seconds
11:00
0.19 98% 8% 0.11 - 0% 0% 0% 34% 0.01 39° 3600seconds
12:00
0.19 98% 7% 0.11 - 0% 0% 0% 33% 0.01 48° 3600seconds
13:00
0.18 99% 6% 0.11 - 0% 0% 0% 33% 0.01 55° 3600seconds
14:00
0.18 99% 5% 0.12 - 0% 0% 0% 32% 0.009 57° 3600seconds
15:00
- 99% 3% - - 0% 0% 0% 33% - 54° 3600seconds
16:00
- 100% 2% - - 0% 0% 0% 34% - 47° 3600seconds
17:00
- 100% 0% - - 0% 0% 0% 35% - 37° 3600seconds
18:00
- 100% 0% - - 0% 0% 0% 36% - 27° 3600seconds
19:00
- 100% 0% - - 0% 0% 0% 37% - 16° 3600seconds
20:00
- 100% 0% - - 0% 0% 0% 37% - 4.4° 3600seconds
21:00
- 99% 3% - - 0% 0% 0% 38% - -6.7° 0seconds
22:00
- 99% 6% - - 0% 0% 1% 38% - -17° 0seconds
23:00
- 98% 9% - - 0% 0% 0% 39% - -26° 0seconds
Sat, Apr 11 Sunrise 07:21 Sunset 20:27
24:00
- 98% 9% - - 0% 0% 2% 46% - -34° 0seconds
01:00
- 97% 9% - - 0% 2% 5% 54% - -39° 0seconds
02:00
- 97% 9% - - 0% 0% 0% 62% - -40° 0seconds
03:00
- 88% 17% - - 0% 0% 1% 60% - -38° 0seconds
04:00
- 79% 24% - - 0% 0% 3% 59% - -33° 0seconds
05:00
- 70% 32% - - 5% 0% 13% 57% - -25° 0seconds
06:00
- 64% 33% - - 47% 0% 13% 52% - -15° 0seconds
07:00
- 58% 33% - - 80% 0% 5% 46% - -4.4° 0seconds
08:00
- 52% 34% - - 5% 0% 5% 41% - 6.8° 0seconds
09:00
- 43% 35% - - 37% 0% 33% 41% - 18° 1200seconds
10:00
- 33% 35% - - 68% 0% 62% 40% - 29° 2400seconds
11:00
- 24% 36% - - 100% 0% 90% 40% - 40° 3600seconds
12:00
- 18% 32% - - 100% 26% 93% 43% - 49° 3600seconds
13:00
- 13% 28% - - 100% 53% 97% 45% - 55° 3600seconds
14:00
- 7% 24% - - 100% 79% 100% 48% - 57° 3600seconds
15:00
- 7% 24% - - 100% 54% 100% 48% - 54° 2400seconds
16:00
- 7% 25% - - 100% 30% 99% 48% - 47° 1200seconds
17:00
- 7% 25% - - 100% 5% 98% 48% - 38° 0seconds
18:00
- 5% 21% - - 100% 5% 99% 50% - 27° 0seconds
19:00
- 3% 18% - - 100% 5% 100% 53% - 16° 0seconds
20:00
- 1% 14% - - 100% 5% 100% 56% - 4.6° 0seconds
21:00
- 1% 11% - - 100% 4% 100% 56% - -6.5° 0seconds
22:00
- 0% 7% - - 100% 3% 100% 56% - -17° 0seconds
23:00
- 0% 4% - - 100% 1% 100% 56% - -26° 0seconds
Sun, Apr 12 Sunrise 07:20 Sunset 20:28
24:00
- 0% 3% - - 100% 1% 100% 56% - -34° 0seconds
01:00
- 0% 3% - - 100% 1% 100% 56% - -39° 0seconds
02:00
- 0% 2% - - 100% 0% 100% 56% - -40° 0seconds
03:00
- 0% 2% - - 100% 33% 100% 57% - -38° 0seconds
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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