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Rule Fog Hunter

Tortuguero - Fog Hunter - Costa Rica

Puerto Limón, Limón Province, Costa Rica

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 · ≥ 75.0%

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
Fog Probability
0%
Dewpoint Spread4.1°C
Visibility22515 (Clear)
Relative Humidity78%
Wind Speed1.1m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Costa_Rica

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 cloud forest conditions and valley fog create atmospheric scenes across Costa Rica's diverse elevations and microclimates. We track elevation-specific humidity, temperature differentials, and wind patterns to identify when fog and mist transform rainforest, cloud forest, and volcanic landscapes.

Costa Rica's dramatic topography creates numerous fog microclimates—from Monteverde's perpetual cloud forest mist to volcanic valley inversions to Caribbean coastal morning fog. The collision of Pacific and Caribbean weather systems over mountainous terrain produces exceptional fog photography opportunities year-round, with green season (May-November) bringing the most dramatic conditions.

What makes Costa Rica fog photography special:

  • Cloud forest immersion - Monteverde's permanent fog layer supports epiphyte-draped forests where mist is the defining feature, not occasional visitor
  • Volcanic valley fog - Arenal and Turrialba valleys fill with morning fog while volcanic peaks emerge above inversion layers
  • Microclimate transitions - Experience multiple fog types in single day—cloud forest, valley fog, coastal mist across short distances
  • Jungle emergence - Rainforest canopy trees and cecropia emerging from morning fog layers create layered atmospheric compositions

Monteverde cloud forest reserve exists because of fog—the persistent cloud layer that supports one of Earth's most biodiverse ecosystems. Here, photography captures fog as environment, with epiphytes, bromeliads, and moss-draped trees emerging from perpetual mist. The suspended bridges offer unique elevated perspectives into the fog layer. From La Fortuna, Arenal Volcano's perfect cone rises above valley fog on calm mornings, especially during green season. Turrialba Valley experiences similar inversions with the active volcano emerging above fog pools. Rincón de la Vieja's volcanic slopes create altitude-based fog layers with fumaroles adding volcanic steam to natural mist. Best conditions occur during green season when humidity is highest—arrive early as valley fog often dissipates by 8-9 AM.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Costa_Rica
Fog Probability
≥ 75.0%
Sat, May 23
07:000%
08:000%
09:000%
10:000%
11:000%
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13:000%
14:000%
15:000%
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Sun, May 24
24:000%
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03:000%
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06:000%
07:000%
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Mon, May 25
24:000%
01:000%
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03:000%
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05:000%
06:000%
07:000%
08:000%
09:000%
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Tue, May 26
24:000%
01:000%
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04:000%
05:000%
06:000%
07:000%
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23:000%
Wed, May 27
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
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
America/Costa_Rica
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
Sun, May 24 Sunrise 05:10 Sunset 17:47
07:00
0% 23°C 0mm 78% 0cm 25° 27°C 0.19mm 0.77kPa 22515m 1.1m/s 1.1m/s
08:00
0% 23°C 0mm 76% 0cm 39° 28°C 0.38mm 0.87kPa 23182m 0.51m/s 0.38m/s
09:00
0% 23°C 0mm 74% 0cm 53° 28°C 0.69mm 0.97kPa 23599m 1.7m/s 1.3m/s
10:00
0% 23°C 0mm 73% 0cm 66° 29°C 0.88mm 1.1kPa 24134m 2.4m/s 1.8m/s
11:00
1% 23°C 0.01mm 71% 0cm 77° 29°C 1mm 1.2kPa 24134m 3m/s 2.6m/s
12:00
1% 23°C 0mm 70% 0cm 77° 29°C 1.1mm 1.2kPa 24134m 3m/s 3.2m/s
13:00
6% 23°C 0mm 70% 0cm 66° 29°C 0.06mm 1.2kPa 24135m 2.6m/s 3m/s
14:00
12% 23°C 0mm 71% 0cm 52° 29°C 0.13mm 1.2kPa 24134m 2.6m/s 3m/s
15:00
17% 23°C 0mm 72% 0cm 38° 29°C 0.44mm 1.1kPa 10872m 2.1m/s 2.3m/s
16:00
12% 24°C 0mm 78% 0cm 24° 28°C 1.8mm 0.81kPa 4363m 2.5m/s 2.3m/s
17:00
7% 24°C 0.01mm 81% 0cm 10° 27°C 3.4mm 0.7kPa 23464m 2.9m/s 2.2m/s
18:00 ☾
2% 24°C 0mm 83% 0cm -3.5° 27°C 5.1mm 0.59kPa 5289m 2.5m/s 2m/s
19:00 ☾
2% 24°C 0mm 83% 0cm -17° 27°C 2.3mm 0.58kPa 5715m 2.7m/s 2.1m/s
20:00 ☾
3% 23°C 0mm 84% 0cm -30° 26°C 4.2mm 0.56kPa 6141m 2.4m/s 1.9m/s
21:00 ☾
3% 23°C 0mm 84% 0cm -42° 26°C 5.6mm 0.56kPa 7759m 1.5m/s 1.2m/s
22:00 ☾
3% 23°C 0mm 82% 0cm -52° 26°C 6.6mm 0.63kPa 12284m 0.9m/s 0.71m/s
23:00 ☾
2% 23°C 0mm 82% 0cm -58° 26°C 6.8mm 0.62kPa 24134m 1.5m/s 1.6m/s
Mon, May 25 Sunrise 05:10 Sunset 17:48
24:00 ☾
2% 23°C 0mm 83% 0cm -58° 26°C 6.8mm 0.58kPa 24134m 1.9m/s 2m/s
01:00 ☾
3% 23°C 0mm 84% 0cm -52° 26°C 0.06mm 0.54kPa 24135m 2.1m/s 2m/s
02:00 ☾
5% 23°C 0mm 82% 0cm -42° 26°C 0.31mm 0.6kPa 24134m 1.6m/s 1.5m/s
03:00 ☾
6% 22°C 0mm 82% 0cm -30° 26°C 0.5mm 0.6kPa 24135m 1.4m/s 1.3m/s
04:00 ☾
6% 22°C 0mm 82% 0cm -17° 26°C 1mm 0.6kPa 13385m 1.8m/s 1.5m/s
05:00 ☾
6% 22°C 0mm 81% 0cm -3° 26°C 1.3mm 0.61kPa 24134m 1.8m/s 1.6m/s
06:00
6% 22°C 0mm 82% 0cm 11° 26°C 1.4mm 0.61kPa 24135m 1.7m/s 1.6m/s
07:00
5% 23°C 0mm 80% 0cm 25° 26°C 0.19mm 0.69kPa 24134m 1.6m/s 1.5m/s
08:00
4% 23°C 0mm 75% 0cm 39° 27°C 0.56mm 0.89kPa 22926m 0.73m/s 0.61m/s
09:00
3% 22°C 0mm 72% 0cm 53° 28°C 0.69mm 1.1kPa 24134m 1.1m/s 0.77m/s
10:00
2% 22°C 0mm 68% 0cm 66° 29°C 0.69mm 1.3kPa 24134m 1.3m/s 1m/s
11:00
2% 22°C 0mm 67% 0cm 77° 29°C 0.69mm 1.3kPa 24135m 2.2m/s 2.2m/s
12:00
1% 22°C 0mm 66% 0cm 77° 29°C 0.75mm 1.4kPa 24134m 2.5m/s 2.9m/s
13:00
3% 22°C 0mm 67% 0cm 66° 29°C 0mm 1.3kPa 24135m 2.5m/s 3.2m/s
14:00
5% 23°C 0mm 68% 0cm 52° 29°C 0.06mm 1.3kPa 24134m 2.6m/s 3.1m/s
15:00
7% 23°C 0mm 70% 0cm 38° 29°C 0.06mm 1.2kPa 24135m 2.2m/s 2.7m/s
16:00
6% 23°C 0mm 73% 0cm 24° 28°C 0.31mm 1kPa 7536m 2.3m/s 2.4m/s
17:00
4% 23°C 0mm 78% 0cm 10° 28°C 0.94mm 0.82kPa 11924m 2.1m/s 1.7m/s
18:00 ☾
3% 23°C 0mm 82% 0cm -3.4° 27°C 1.8mm 0.65kPa 24135m 1.9m/s 1.5m/s
19:00 ☾
2% 23°C 0mm 83% 0cm -17° 27°C 1mm 0.6kPa 12494m 1.8m/s 1.4m/s
20:00 ☾
1% 23°C 0mm 83% 0cm -30° 26°C 2.1mm 0.6kPa 11202m 1.5m/s 1.1m/s
21:00 ☾
0% 23°C 0mm 82% 0cm -42° 26°C 2.8mm 0.6kPa 11562m 1.3m/s 0.88m/s
22:00 ☾
0% 23°C 0mm 82% 0cm -52° 26°C 3.7mm 0.61kPa 11505m 0.5m/s 0.45m/s
23:00 ☾
0% 23°C 0mm 82% 0cm -58° 26°C 4.4mm 0.6kPa 9299m 1.2m/s 1.1m/s
Tue, May 26 Sunrise 05:10 Sunset 17:48
24:00 ☾
0% 23°C 0mm 82% 0cm -58° 26°C 4.5mm 0.6kPa 24135m 1.8m/s 1.7m/s
01:00 ☾
0% 23°C 0mm 83% 0cm -52° 26°C 0mm 0.56kPa 24134m 2.5m/s 2.3m/s
02:00 ☾
0% 23°C 0mm 83% 0cm -42° 26°C 0mm 0.57kPa 24135m 2.5m/s 2.3m/s
03:00 ☾
0% 23°C 0mm 83% 0cm -30° 26°C 0mm 0.57kPa 24134m 2.8m/s 2.6m/s
04:00 ☾
0% 23°C 0mm 83% 0cm -17° 26°C 0.06mm 0.57kPa 24135m 2.9m/s 2.5m/s
05:00 ☾
0% 22°C 0mm 82% 0cm -3° 26°C 0.06mm 0.57kPa 24134m 3.3m/s 2.7m/s
06:00
0% 23°C 0mm 82% 0cm 11° 26°C 0.13mm 0.58kPa 15264m 3.6m/s 2.9m/s
07:00
0% 23°C 0mm 80% 0cm 25° 27°C 0.25mm 0.68kPa 24134m 4m/s 3.2m/s
08:00
1% 23°C 0mm 76% 0cm 39° 27°C 0.63mm 0.86kPa 24135m 3.9m/s 3.3m/s
09:00
1% 23°C 0mm 73% 0cm 52° 28°C 1.1mm 1kPa 12744m 3.5m/s 3.1m/s
10:00
1% 23°C 0mm 71% 0cm 66° 28°C 1.5mm 1.1kPa 24134m 3.7m/s 3.8m/s
11:00
0% 23°C 0mm 71% 0cm 77° 29°C 1.6mm 1.1kPa 24135m 4.1m/s 4.4m/s
12:00
0% 23°C 0mm 71% 0cm 77° 28°C 1.8mm 1.1kPa 24134m 4.4m/s 4.7m/s
13:00
0% 23°C 0.12mm 77% 0cm 65° 27°C 2.8mm 0.83kPa 21603m 4.3m/s 4.2m/s
14:00
1% 23°C 0.23mm 82% 0cm 52° 26°C 3.9mm 0.59kPa 19072m 4.1m/s 3.7m/s
15:00
1% 22°C 0.35mm 88% 0cm 38° 25°C 4.9mm 0.38kPa 16540m 4m/s 3.2m/s
16:00
1% 22°C 0.24mm 86% 0cm 24° 25°C 5mm 0.45kPa 19072m 3m/s 2.4m/s
17:00
0% 22°C 0.14mm 84% 0cm 10° 25°C 5.1mm 0.52kPa 21603m 1.9m/s 1.6m/s
18:00 ☾
0% 22°C 0.03mm 82% 0cm -3.3° 25°C 5.2mm 0.6kPa 24135m 0.9m/s 0.73m/s
19:00 ☾
0% 22°C 0.02mm 81% 0cm -17° 25°C 3.5mm 0.62kPa 24135m 1.4m/s 1.1m/s
20:00 ☾
0% 22°C 0.02mm 80% 0cm -30° 25°C 1.8mm 0.63kPa 24135m 1.9m/s 1.5m/s
21:00 ☾
0% 22°C 0.01mm 80% 0cm -42° 25°C 0.06mm 0.65kPa 24135m 2.4m/s 1.9m/s
22:00 ☾
0% 22°C 0.007mm 81% 0cm -52° 25°C 0.1mm 0.62kPa 22714m 2.3m/s 1.9m/s
23:00 ☾
0% 22°C 0.003mm 82% 0cm -58° 25°C 0.15mm 0.59kPa 21294m 2.1m/s 1.8m/s
Wed, May 27 Sunrise 05:10 Sunset 17:48
24:00 ☾
0% 22°C 0mm 83% 0cm -58° 25°C 0.19mm 0.56kPa 19873m 1.9m/s 1.8m/s
01:00 ☾
0% 22°C 0mm 80% 0cm -52° 26°C 0.19mm 0.67kPa 21294m 1.6m/s 1.4m/s
02:00 ☾
0% 22°C 0mm 77% 0cm -42° 27°C 0.19mm 0.79kPa 22714m 1.2m/s 1m/s
03:00 ☾
0% 22°C 0mm 75% 0cm -30° 27°C 0.19mm 0.92kPa 24135m 0.83m/s 0.59m/s
04:00 ☾
0% 22°C 0mm 74% 0cm -17° 28°C 0.19mm 0.97kPa 24135m 1.2m/s 1.3m/s
05:00 ☾
0% 22°C 0mm 73% 0cm -3° 28°C 0.19mm 1kPa 24135m 1.5m/s 2m/s
06:00
0% 22°C 0mm 72% 0cm 11° 28°C 0.19mm 1.1kPa 24135m 1.9m/s 2.8m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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