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Rule Fog Hunter

Puerto Viejo - Fog Hunter - Costa Rica

Puerto Viejo de Talamanca, 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
Dewpoint Spread4.1°C
Visibility12357 (Clear)
Relative Humidity78%
Wind Speed2.2m/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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07:000%
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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 05:09 Sunset 17:46
07:00
0% 23°C 0mm 78% 0cm 25° 27°C 0.25mm 0.79kPa 12357m 2.1m/s 2.2m/s
08:00
0% 23°C 0mm 76% 0cm 39° 28°C 0.44mm 0.88kPa 22181m 1.5m/s 1.5m/s
09:00
0% 23°C 0mm 75% 0cm 53° 28°C 0.56mm 0.94kPa 22930m 1.8m/s 1.6m/s
10:00
0% 23°C 0mm 74% 0cm 66° 28°C 0.63mm 0.99kPa 24134m 2.1m/s 1.9m/s
11:00
0% 23°C 0mm 73% 0cm 77° 28°C 0.63mm 1kPa 24134m 3.1m/s 2.9m/s
12:00
0% 23°C 0mm 73% 0cm 76° 29°C 0.69mm 1.1kPa 24134m 3.4m/s 3.5m/s
13:00
0% 23°C 0mm 73% 0cm 65° 29°C 0.13mm 1.1kPa 24135m 3.1m/s 3.3m/s
14:00
0% 23°C 0mm 73% 0cm 52° 29°C 0.13mm 1.1kPa 24134m 2.7m/s 2.9m/s
15:00
0% 23°C 0mm 73% 0cm 38° 29°C 0.38mm 1kPa 24135m 2.6m/s 2.8m/s
16:00
0% 24°C 0mm 76% 0cm 24° 28°C 1mm 0.93kPa 9288m 2.9m/s 2.9m/s
17:00
0% 24°C 0mm 77% 0cm 10° 28°C 2.2mm 0.85kPa 24135m 3.6m/s 3.4m/s
18:00
0% 24°C 0mm 80% 0cm -3.8° 27°C 3.9mm 0.73kPa 4660m 3.2m/s 2.9m/s
19:00
0% 24°C 0mm 80% 0cm -17° 27°C 2.2mm 0.72kPa 5680m 3.2m/s 2.9m/s
20:00
0% 24°C 0mm 81% 0cm -30° 27°C 4.1mm 0.69kPa 6087m 2.8m/s 2.5m/s
21:00
0% 23°C 0mm 80% 0cm -42° 27°C 5.7mm 0.7kPa 5187m 2.1m/s 1.9m/s
22:00
0% 23°C 0mm 79% 0cm -53° 27°C 6.6mm 0.73kPa 24134m 0.7m/s 0.67m/s
23:00
0% 23°C 0mm 79% 0cm -59° 27°C 6.9mm 0.76kPa 24134m 2.1m/s 2.4m/s
Mon, May 25 Sunrise 05:09 Sunset 17:46
24:00
0% 23°C 0.01mm 80% 0cm -58° 27°C 6.9mm 0.72kPa 24134m 3m/s 3.2m/s
01:00
1% 23°C 0mm 80% 0cm -52° 27°C 0.06mm 0.7kPa 24135m 3m/s 3m/s
02:00
1% 23°C 0mm 78% 0cm -42° 27°C 0.38mm 0.76kPa 22978m 2m/s 1.9m/s
03:00
2% 23°C 0mm 78% 0cm -30° 27°C 0.5mm 0.8kPa 24135m 2.3m/s 2.1m/s
04:00
2% 23°C 0mm 80% 0cm -17° 27°C 1.3mm 0.71kPa 14330m 2.5m/s 2.1m/s
05:00
2% 23°C 0mm 78% 0cm -2.9° 27°C 1.8mm 0.77kPa 24134m 2.7m/s 2.4m/s
06:00
2% 23°C 0mm 78% 0cm 11° 27°C 2.1mm 0.76kPa 11885m 2.9m/s 2.6m/s
07:00
2% 23°C 0mm 77% 0cm 25° 27°C 0.63mm 0.81kPa 24134m 2.6m/s 2.5m/s
08:00
2% 23°C 0mm 74% 0cm 39° 27°C 0.75mm 0.94kPa 24134m 2.4m/s 2.1m/s
09:00
2% 22°C 0mm 72% 0cm 53° 28°C 0.81mm 1kPa 24134m 2.3m/s 2.1m/s
10:00
1% 22°C 0mm 71% 0cm 66° 28°C 0.88mm 1.1kPa 24134m 2m/s 1.9m/s
11:00
1% 22°C 0mm 70% 0cm 77° 28°C 0.88mm 1.1kPa 24135m 2.5m/s 2.6m/s
12:00
0% 22°C 0mm 70% 0cm 76° 28°C 0.88mm 1.2kPa 24134m 3m/s 3.2m/s
13:00
1% 22°C 0mm 70% 0cm 65° 28°C 0mm 1.2kPa 24135m 3m/s 3.3m/s
14:00
2% 23°C 0mm 70% 0cm 52° 29°C 0mm 1.2kPa 24134m 2.7m/s 3m/s
15:00
3% 23°C 0mm 71% 0cm 38° 28°C 0mm 1.1kPa 24135m 2.6m/s 2.7m/s
16:00
2% 23°C 0mm 72% 0cm 24° 28°C 0mm 1.1kPa 24134m 2.8m/s 2.7m/s
17:00
1% 23°C 0mm 73% 0cm 10° 28°C 0.13mm 1kPa 24134m 2.1m/s 1.9m/s
18:00
0% 23°C 0mm 77% 0cm -3.8° 27°C 1.5mm 0.84kPa 9781m 2.1m/s 1.8m/s
19:00
0% 23°C 0mm 78% 0cm -17° 27°C 1.2mm 0.82kPa 10100m 2.3m/s 1.9m/s
20:00
0% 23°C 0mm 78% 0cm -30° 27°C 2mm 0.78kPa 11085m 2.4m/s 2m/s
21:00
0% 23°C 0mm 79% 0cm -42° 27°C 2.9mm 0.75kPa 4181m 1.9m/s 1.6m/s
22:00
0% 23°C 0mm 79% 0cm -52° 27°C 4.1mm 0.75kPa 6792m 2m/s 1.7m/s
23:00
0% 23°C 0mm 79% 0cm -58° 27°C 5.3mm 0.73kPa 6640m 2.4m/s 2.1m/s
Tue, May 26 Sunrise 05:09 Sunset 17:46
24:00
0% 23°C 0mm 78% 0cm -58° 27°C 5.4mm 0.77kPa 24135m 2.8m/s 2.8m/s
01:00
0% 23°C 0mm 79% 0cm -52° 27°C 0mm 0.73kPa 24134m 3.5m/s 3.4m/s
02:00
0% 23°C 0mm 80% 0cm -42° 27°C 0mm 0.7kPa 24135m 3.3m/s 3.1m/s
03:00
0% 23°C 0mm 80% 0cm -30° 27°C 0mm 0.69kPa 24134m 3.6m/s 3.4m/s
04:00
0% 23°C 0mm 80% 0cm -16° 27°C 0mm 0.7kPa 24135m 3.7m/s 3.3m/s
05:00
0% 23°C 0mm 79% 0cm -2.9° 27°C 0mm 0.73kPa 24134m 3.2m/s 2.9m/s
06:00
0% 23°C 0mm 78% 0cm 11° 27°C 0.06mm 0.76kPa 24134m 3.5m/s 3.1m/s
07:00
0% 23°C 0mm 77% 0cm 25° 27°C 0.19mm 0.82kPa 24134m 3.9m/s 3.4m/s
08:00
0% 23°C 0mm 75% 0cm 39° 27°C 0.63mm 0.9kPa 24135m 3.8m/s 3.3m/s
09:00
0% 23°C 0mm 74% 0cm 53° 28°C 0.81mm 0.96kPa 24135m 4.3m/s 3.7m/s
10:00
0% 23°C 0mm 74% 0cm 66° 28°C 0.81mm 0.98kPa 24134m 4.5m/s 4.3m/s
11:00
0% 23°C 0mm 74% 0cm 77° 28°C 0.81mm 0.98kPa 24135m 5.2m/s 5.2m/s
12:00
0% 23°C 0mm 75% 0cm 76° 28°C 0.81mm 0.95kPa 24134m 5.6m/s 5.6m/s
13:00
0% 22°C 0.46mm 82% 0cm 65° 26°C 4.8mm 0.6kPa 19923m 5.1m/s 4.4m/s
14:00
0% 21°C 0.92mm 88% 0cm 52° 23°C 8.8mm 0.33kPa 15713m 4.5m/s 3.2m/s
15:00
0% 20°C 1.4mm 95% 0cm 38° 21°C 13mm 0.12kPa 11502m 4m/s 2m/s
16:00
0% 20°C 1.1mm 94% 0cm 24° 21°C 14mm 0.15kPa 15086m 3.8m/s 2.1m/s
17:00
0% 19°C 0.73mm 92% 0cm 10° 20°C 14mm 0.18kPa 18670m 3.5m/s 2.1m/s
18:00
0% 19°C 0.4mm 91% 0cm -3.7° 20°C 15mm 0.21kPa 22254m 3.3m/s 2.2m/s
19:00
0% 19°C 0.27mm 91% 0cm -17° 20°C 10mm 0.22kPa 22881m 2.5m/s 1.8m/s
20:00
0% 18°C 0.13mm 90% 0cm -30° 20°C 5.1mm 0.23kPa 23508m 1.7m/s 1.5m/s
21:00
0% 18°C 0mm 90% 0cm -42° 20°C 0.19mm 0.24kPa 24135m 0.83m/s 1.1m/s
22:00
0% 18°C 0mm 89% 0cm -52° 20°C 0.19mm 0.25kPa 24135m 0.93m/s 1.2m/s
23:00
0% 18°C 0mm 89% 0cm -58° 20°C 0.19mm 0.25kPa 24135m 1m/s 1.3m/s
Wed, May 27 Sunrise 05:09 Sunset 17:47
24:00
0% 18°C 0mm 89% 0cm -58° 20°C 0.19mm 0.26kPa 24135m 1.1m/s 1.4m/s
01:00
0% 18°C 0mm 80% 0cm -52° 22°C 0.13mm 0.52kPa 24135m 1.1m/s 1.4m/s
02:00
0% 19°C 0mm 71% 0cm -42° 24°C 0.06mm 0.85kPa 24135m 1.1m/s 1.4m/s
03:00
0% 19°C 0mm 63% 0cm -29° 26°C 0mm 1.3kPa 24135m 1m/s 1.4m/s
04:00
0% 19°C 0mm 63% 0cm -16° 27°C 0.17mm 1.3kPa 24135m 1.2m/s 1.7m/s
05:00
0% 19°C 0mm 63% 0cm -2.8° 27°C 0.33mm 1.3kPa 24135m 1.5m/s 2m/s
06:00
0% 20°C 0mm 63% 0cm 11° 28°C 0.5mm 1.4kPa 24135m 1.7m/s 2.3m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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