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Rule Fog Hunter

Tamarindo - Fog Hunter - Costa Rica

Nicoya, Guanacaste 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
Dewpoint Spread5.9°C
Visibility24135 (Clear)
Relative Humidity70%
Wind Speed4.2m/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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Sun, May 24
24:000%
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05:000%
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Mon, May 25
24:000%
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07:000%
08:000%
09:000%
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Tue, May 26
24:000%
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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 05:19 Sunset 17:57
07:00
12% 22°C 0mm 70% 0cm 23° 28°C 0mm 1.1kPa 24135m 7.9m/s 4.2m/s
08:00
24% 21°C 0mm 59% 0cm 37° 30°C 0mm 1.8kPa 24135m 6.4m/s 5.1m/s
09:00
35% 21°C 0mm 50% 0cm 50° 32°C 0mm 2.4kPa 24134m 6.5m/s 5.3m/s
10:00
29% 20°C 0mm 44% 0cm 64° 34°C 0mm 3kPa 24134m 6.7m/s 5m/s
11:00
22% 20°C 0mm 40% 0cm 76° 36°C 0mm 3.5kPa 24134m 7.1m/s 5.1m/s
12:00
16% 20°C 0mm 40% 0cm 78° 36°C 0mm 3.5kPa 24134m 6.6m/s 6.8m/s
13:00
11% 20°C 0mm 45% 0cm 68° 34°C 0.13mm 2.9kPa 24135m 7m/s 6.7m/s
14:00
5% 20°C 0mm 44% 0cm 54° 34°C 0.63mm 2.9kPa 24134m 7.8m/s 6.2m/s
15:00
0% 20°C 0mm 45% 0cm 41° 34°C 0.63mm 2.9kPa 24135m 8.8m/s 6m/s
16:00
0% 20°C 0mm 44% 0cm 27° 34°C 0.69mm 2.9kPa 24124m 8.3m/s 7.1m/s
17:00
0% 21°C 0mm 52% 0cm 13° 32°C 0.69mm 2.2kPa 24131m 8.7m/s 6.3m/s
18:00
0% 21°C 0mm 57% 0cm -1° 30°C 0.75mm 1.8kPa 24135m 9.4m/s 5.7m/s
19:00
1% 21°C 0mm 62% 0cm -15° 29°C 0mm 1.5kPa 24135m 9.8m/s 5.4m/s
20:00
2% 21°C 0mm 67% 0cm -28° 28°C 0mm 1.2kPa 24135m 11m/s 5.5m/s
21:00
3% 21°C 0mm 68% 0cm -40° 27°C 0mm 1.1kPa 24135m 9.8m/s 5.8m/s
22:00
2% 21°C 0mm 71% 0cm -51° 27°C 0mm 1kPa 24134m 9.2m/s 4.8m/s
23:00
2% 21°C 0mm 74% 0cm -57° 26°C 0mm 0.9kPa 24134m 9.2m/s 4.5m/s
Mon, May 25 Sunrise 05:19 Sunset 17:58
24:00
1% 21°C 0mm 73% 0cm -58° 26°C 0mm 0.92kPa 24134m 9m/s 4.4m/s
01:00
1% 21°C 0mm 74% 0cm -53° 26°C 0mm 0.88kPa 24135m 9m/s 3.9m/s
02:00
0% 21°C 0mm 75% 0cm -43° 26°C 0mm 0.83kPa 24134m 9m/s 3.5m/s
03:00
0% 21°C 0mm 76% 0cm -32° 25°C 0mm 0.76kPa 24135m 8.8m/s 3.6m/s
04:00
0% 21°C 0mm 79% 0cm -19° 25°C 0mm 0.67kPa 24135m 8.7m/s 2.8m/s
05:00
0% 21°C 0mm 80% 0cm -5.2° 25°C 0mm 0.62kPa 24134m 8.6m/s 2.5m/s
06:00
0% 21°C 0mm 76% 0cm 8.6° 25°C 0mm 0.77kPa 24135m 9m/s 3.1m/s
07:00
0% 21°C 0mm 66% 0cm 23° 27°C 0mm 1.3kPa 24134m 8.4m/s 5.1m/s
08:00
0% 20°C 0mm 56% 0cm 36° 30°C 0mm 1.8kPa 24134m 7.5m/s 6m/s
09:00
0% 20°C 0mm 49% 0cm 50° 32°C 0mm 2.4kPa 24134m 7.4m/s 5.8m/s
10:00
0% 19°C 0mm 44% 0cm 64° 33°C 0mm 2.9kPa 24134m 7.3m/s 5.2m/s
11:00
0% 19°C 0mm 39% 0cm 76° 35°C 0mm 3.4kPa 24135m 6.8m/s 5.5m/s
12:00
0% 19°C 0mm 38% 0cm 78° 35°C 0mm 3.5kPa 24134m 5.8m/s 4.9m/s
13:00
0% 18°C 0mm 36% 0cm 68° 36°C 0mm 3.8kPa 24135m 4.6m/s 4.4m/s
14:00
0% 18°C 0mm 34% 0cm 54° 37°C 0mm 4kPa 24134m 4.3m/s 4.5m/s
15:00
0% 19°C 0mm 37% 0cm 41° 36°C 0mm 3.7kPa 24135m 4.5m/s 5.3m/s
16:00
0% 19°C 0mm 43% 0cm 27° 33°C 0.25mm 2.9kPa 24134m 7.5m/s 6.8m/s
17:00
0% 19°C 0mm 47% 0cm 13° 32°C 0.38mm 2.6kPa 24134m 8.9m/s 6.8m/s
18:00
0% 20°C 0mm 51% 0cm -0.95° 31°C 0.56mm 2.2kPa 24135m 9.6m/s 6.5m/s
19:00
0% 20°C 0mm 57% 0cm -15° 30°C 0mm 1.8kPa 24134m 9.1m/s 5.3m/s
20:00
0% 21°C 0mm 61% 0cm -28° 29°C 0mm 1.6kPa 24135m 8.2m/s 4.2m/s
21:00
0% 21°C 0mm 65% 0cm -40° 28°C 0mm 1.3kPa 24134m 7.9m/s 4m/s
22:00
0% 21°C 0mm 68% 0cm -50° 28°C 0mm 1.2kPa 24134m 7.8m/s 4m/s
23:00
0% 21°C 0mm 72% 0cm -57° 27°C 0mm 1kPa 24134m 6.8m/s 3.3m/s
Tue, May 26 Sunrise 05:19 Sunset 17:58
24:00
0% 21°C 0mm 74% 0cm -58° 26°C 0mm 0.91kPa 24135m 5.4m/s 2.4m/s
01:00
0% 21°C 0mm 74% 0cm -53° 26°C 0mm 0.88kPa 24134m 4.4m/s 1.9m/s
02:00
0% 21°C 0mm 75% 0cm -43° 26°C 0mm 0.84kPa 24135m 4.2m/s 1.7m/s
03:00
0% 21°C 0mm 75% 0cm -32° 26°C 0mm 0.81kPa 24134m 3.7m/s 1.4m/s
04:00
0% 21°C 0mm 76% 0cm -19° 26°C 0mm 0.79kPa 24135m 3.3m/s 1.1m/s
05:00
0% 21°C 0mm 76% 0cm -5.2° 26°C 0mm 0.78kPa 24134m 4.3m/s 1.2m/s
06:00
0% 21°C 0mm 75% 0cm 8.6° 26°C 0mm 0.83kPa 24134m 5.4m/s 1.1m/s
07:00
0% 21°C 0mm 70% 0cm 22° 27°C 0mm 1kPa 24134m 5.3m/s 1.6m/s
08:00
1% 20°C 0mm 63% 0cm 36° 28°C 0mm 1.4kPa 24135m 5.9m/s 3.5m/s
09:00
1% 20°C 0mm 56% 0cm 50° 30°C 0mm 1.9kPa 24135m 5.6m/s 4.4m/s
10:00
1% 20°C 0mm 48% 0cm 64° 32°C 0mm 2.4kPa 24134m 5.5m/s 4.5m/s
11:00
1% 19°C 0mm 42% 0cm 76° 34°C 0mm 3kPa 24135m 5.3m/s 4.3m/s
12:00
1% 19°C 0mm 38% 0cm 78° 35°C 0mm 3.5kPa 24134m 4.7m/s 4.1m/s
13:00
1% 22°C 0.52mm 56% 0cm 68° 31°C 3.2mm 2kPa 18964m 3.5m/s 3.1m/s
14:00
0% 23°C 1mm 74% 0cm 54° 28°C 6.5mm 0.95kPa 13793m 2.3m/s 2m/s
15:00
0% 23°C 1.6mm 92% 0cm 41° 24°C 9.7mm 0.22kPa 8623m 1.1m/s 0.91m/s
16:00
0% 23°C 1.1mm 93% 0cm 27° 24°C 10mm 0.21kPa 13794m 1.1m/s 0.83m/s
17:00
0% 23°C 0.57mm 93% 0cm 13° 24°C 10mm 0.2kPa 18964m 1.1m/s 0.76m/s
18:00
0% 23°C 0.08mm 94% 0cm -0.88° 24°C 11mm 0.19kPa 24135m 1.1m/s 0.68m/s
19:00
1% 23°C 0.05mm 94% 0cm -15° 24°C 7.1mm 0.18kPa 24135m 1m/s 0.71m/s
20:00
1% 23°C 0.03mm 94% 0cm -28° 24°C 3.6mm 0.17kPa 24135m 0.99m/s 0.73m/s
21:00
2% 23°C 0mm 95% 0cm -40° 24°C 0.13mm 0.16kPa 24135m 0.93m/s 0.76m/s
22:00
2% 23°C 0mm 94% 0cm -50° 24°C 0.13mm 0.18kPa 24135m 0.97m/s 0.79m/s
23:00
1% 23°C 0mm 93% 0cm -57° 24°C 0.13mm 0.19kPa 24135m 1m/s 0.82m/s
Wed, May 27 Sunrise 05:19 Sunset 17:58
24:00
1% 23°C 0mm 93% 0cm -58° 24°C 0.13mm 0.21kPa 24135m 1m/s 0.85m/s
01:00
2% 23°C 0mm 86% 0cm -53° 25°C 0.08mm 0.46kPa 24135m 1m/s 0.68m/s
02:00
2% 22°C 0mm 79% 0cm -43° 26°C 0.04mm 0.74kPa 24135m 0.96m/s 0.5m/s
03:00
3% 22°C 0mm 72% 0cm -31° 28°C 0mm 1.1kPa 24135m 0.93m/s 0.33m/s
04:00
2% 22°C 0.007mm 65% 0cm -19° 29°C 0mm 1.4kPa 24135m 1.2m/s 0.59m/s
05:00
2% 22°C 0.01mm 59% 0cm -5.2° 30°C 0mm 1.8kPa 24135m 1.6m/s 0.85m/s
06:00
1% 21°C 0.02mm 53% 0cm 8.6° 32°C 0mm 2.2kPa 24135m 1.9m/s 1.1m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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