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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 · ≥ 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
Fog Probability
0%
Dewpoint Spread4.0°C
Visibility24134 (Clear)
Relative Humidity79%
Wind Speed2.3m/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
≥ 60.0%
Tue, Apr 7
19:000%
20:000%
21:000%
22:000%
23:000%
Wed, Apr 8
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
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15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Thu, Apr 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
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15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Fri, Apr 10
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
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16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sat, Apr 11
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:0011%
16:000%
17:000%
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
Wed, Apr 8 Sunrise 05:24 Sunset 17:41
19:00 ☾
1% 23°C 0mm 79% 0cm -20° 27°C 0.44mm 0.73kPa 24134m 2.7m/s 2.3m/s
20:00 ☾
1% 23°C 0mm 79% 0cm -34° 27°C 0.81mm 0.75kPa 24135m 2.4m/s 2.2m/s
21:00 ☾
2% 23°C 0mm 80% 0cm -48° 27°C 1.1mm 0.7kPa 24135m 2.4m/s 2.3m/s
22:00 ☾
2% 23°C 0mm 81% 0cm -61° 26°C 1.4mm 0.66kPa 24135m 2.5m/s 2.5m/s
23:00 ☾
1% 23°C 0mm 81% 0cm -71° 26°C 1.4mm 0.64kPa 24134m 2.6m/s 2.7m/s
Thu, Apr 9 Sunrise 05:24 Sunset 17:41
24:00 ☾
1% 22°C 0mm 82% 0cm -71° 26°C 1.6mm 0.61kPa 24134m 2.9m/s 2.9m/s
01:00 ☾
1% 22°C 0mm 81% 0cm -62° 26°C 0.19mm 0.61kPa 17474m 3.3m/s 3.2m/s
02:00 ☾
0% 22°C 0mm 79% 0cm -49° 26°C 0.38mm 0.69kPa 24135m 3.2m/s 3.1m/s
03:00 ☾
0% 22°C 0mm 78% 0cm -36° 26°C 0.38mm 0.73kPa 24134m 2.7m/s 2.6m/s
04:00 ☾
0% 22°C 0mm 78% 0cm -21° 26°C 0.38mm 0.74kPa 24135m 2.7m/s 2.8m/s
05:00 ☾
0% 21°C 0mm 77% 0cm -6.6° 26°C 0.5mm 0.75kPa 24135m 3.1m/s 3.1m/s
06:00
0% 21°C 0mm 76% 0cm 8.1° 26°C 0.63mm 0.77kPa 24135m 3.1m/s 3m/s
07:00
0% 21°C 0mm 74% 0cm 23° 26°C 0mm 0.86kPa 24135m 2.9m/s 2.8m/s
08:00
0% 21°C 0mm 72% 0cm 38° 27°C 0.06mm 0.98kPa 24134m 2.6m/s 2.3m/s
09:00
0% 21°C 0mm 72% 0cm 52° 27°C 0.06mm 1kPa 24135m 3.1m/s 2.6m/s
10:00
0% 22°C 0mm 74% 0cm 67° 27°C 0.06mm 0.94kPa 24134m 3.4m/s 3.5m/s
11:00
0% 22°C 0mm 74% 0cm 82° 27°C 0.19mm 0.92kPa 24134m 3.9m/s 4m/s
12:00
0% 22°C 0mm 73% 0cm 83° 28°C 0.19mm 1kPa 24135m 4m/s 4.2m/s
13:00
3% 22°C 0mm 73% 0cm 68° 28°C 0mm 1kPa 24135m 4.1m/s 4.4m/s
14:00
5% 23°C 0mm 74% 0cm 54° 28°C 0mm 0.98kPa 24134m 4.3m/s 4.5m/s
15:00
8% 23°C 0mm 75% 0cm 39° 27°C 0.06mm 0.92kPa 24134m 4.2m/s 4.4m/s
16:00
7% 23°C 0mm 76% 0cm 24° 27°C 0.31mm 0.86kPa 24135m 3.9m/s 3.7m/s
17:00
6% 23°C 0mm 78% 0cm 9.3° 27°C 1mm 0.78kPa 24134m 3.3m/s 3m/s
18:00 ☾
5% 23°C 0mm 78% 0cm -5.3° 27°C 1.8mm 0.77kPa 10681m 3.4m/s 2.8m/s
19:00 ☾
6% 23°C 0mm 79% 0cm -20° 27°C 0.31mm 0.73kPa 24134m 3.8m/s 3.3m/s
20:00 ☾
6% 23°C 0mm 80% 0cm -34° 27°C 0.56mm 0.71kPa 24134m 3.6m/s 3.3m/s
21:00 ☾
7% 23°C 0mm 80% 0cm -48° 27°C 0.63mm 0.68kPa 24135m 4m/s 3.7m/s
22:00 ☾
5% 23°C 0mm 82% 0cm -61° 26°C 0.69mm 0.62kPa 24134m 4.3m/s 3.9m/s
23:00 ☾
4% 23°C 0mm 82% 0cm -71° 26°C 0.75mm 0.61kPa 24134m 3.9m/s 3.6m/s
Fri, Apr 10 Sunrise 05:23 Sunset 17:41
24:00 ☾
2% 23°C 0mm 82% 0cm -71° 26°C 0.81mm 0.6kPa 24135m 3.7m/s 3.3m/s
01:00 ☾
3% 22°C 0mm 82% 0cm -62° 26°C 0.13mm 0.59kPa 24134m 3.4m/s 3.1m/s
02:00 ☾
3% 22°C 0mm 82% 0cm -49° 26°C 0.31mm 0.6kPa 24134m 3.7m/s 3.3m/s
03:00 ☾
4% 22°C 0mm 82% 0cm -35° 25°C 0.63mm 0.6kPa 24135m 4.1m/s 3.6m/s
04:00 ☾
3% 22°C 0mm 81% 0cm -21° 25°C 0.88mm 0.62kPa 24135m 3.9m/s 3.3m/s
05:00 ☾
2% 22°C 0mm 81% 0cm -6.5° 25°C 1mm 0.63kPa 24134m 4m/s 3.5m/s
06:00
1% 22°C 0mm 80% 0cm 8.2° 26°C 1.1mm 0.66kPa 24134m 4.3m/s 3.7m/s
07:00
4% 22°C 0mm 78% 0cm 23° 26°C 0.06mm 0.74kPa 24134m 4.4m/s 3.7m/s
08:00
6% 22°C 0mm 77% 0cm 38° 26°C 0.06mm 0.78kPa 24134m 4.2m/s 3.4m/s
09:00
9% 22°C 0mm 77% 0cm 52° 27°C 0.13mm 0.81kPa 14280m 4.3m/s 3.5m/s
10:00
9% 23°C 0mm 77% 0cm 67° 27°C 0.31mm 0.81kPa 24134m 5.1m/s 4.6m/s
11:00
10% 23°C 0mm 77% 0cm 82° 27°C 0.63mm 0.81kPa 24135m 5.5m/s 5.3m/s
12:00
10% 23°C 0mm 79% 0cm 83° 27°C 1.8mm 0.75kPa 4357m 5.1m/s 4.8m/s
13:00
12% 23°C 0mm 78% 0cm 68° 27°C 1.1mm 0.78kPa 12781m 4.3m/s 4.1m/s
14:00
14% 23°C 0mm 78% 0cm 54° 27°C 1.6mm 0.78kPa 24134m 4.3m/s 4m/s
15:00
16% 23°C 0mm 78% 0cm 39° 27°C 2.1mm 0.77kPa 12127m 4m/s 3.8m/s
16:00
13% 23°C 0mm 79% 0cm 24° 27°C 2.6mm 0.75kPa 14422m 3.7m/s 3.5m/s
17:00
10% 23°C 0mm 80% 0cm 9.3° 27°C 3.1mm 0.71kPa 24135m 3.4m/s 3m/s
18:00 ☾
7% 23°C 0mm 80% 0cm -5.3° 27°C 3.8mm 0.7kPa 24134m 3.4m/s 3m/s
19:00 ☾
5% 23°C 0mm 80% 0cm -20° 26°C 0.44mm 0.69kPa 24134m 3.5m/s 3.1m/s
20:00 ☾
4% 23°C 0mm 81% 0cm -34° 26°C 1.4mm 0.64kPa 7700m 3.3m/s 2.8m/s
21:00 ☾
2% 22°C 0mm 80% 0cm -48° 26°C 2.6mm 0.67kPa 6710m 3.3m/s 2.7m/s
22:00 ☾
2% 22°C 0mm 80% 0cm -61° 26°C 3.5mm 0.66kPa 7445m 3.4m/s 2.9m/s
23:00 ☾
1% 22°C 0mm 81% 0cm -70° 26°C 4.1mm 0.64kPa 15751m 3.7m/s 3.3m/s
Sat, Apr 11 Sunrise 05:23 Sunset 17:41
24:00 ☾
1% 22°C 0mm 81% 0cm -71° 26°C 4.2mm 0.63kPa 24135m 4.1m/s 3.7m/s
01:00 ☾
1% 21°C 0mm 79% 0cm -62° 25°C 3.1mm 0.67kPa 20884m 3m/s 2.5m/s
02:00 ☾
2% 20°C 0mm 77% 0cm -49° 24°C 2mm 0.7kPa 17634m 1.9m/s 1.4m/s
03:00 ☾
2% 19°C 0mm 75% 0cm -35° 24°C 0.94mm 0.73kPa 14383m 0.83m/s 0.21m/s
04:00 ☾
1% 20°C 0.07mm 75% 0cm -21° 24°C 1.9mm 0.74kPa 11023m 1m/s 0.5m/s
05:00 ☾
1% 20°C 0.15mm 76% 0cm -6.3° 25°C 2.9mm 0.74kPa 7662m 1.2m/s 0.78m/s
06:00
0% 21°C 0.22mm 76% 0cm 8.3° 25°C 3.9mm 0.75kPa 4302m 1.4m/s 1.1m/s
07:00
2% 21°C 0.15mm 80% 0cm 23° 24°C 3.6mm 0.62kPa 4518m 1.6m/s 1.2m/s
08:00
3% 21°C 0.07mm 83% 0cm 38° 24°C 3.3mm 0.5kPa 4735m 1.8m/s 1.4m/s
09:00
5% 21°C 0mm 86% 0cm 52° 23°C 3.1mm 0.39kPa 4951m 2m/s 1.5m/s
10:00
5% 21°C 0.15mm 90% 0cm 67° 22°C 3.9mm 0.27kPa 4407m 1.7m/s 1.3m/s
11:00
4% 20°C 0.29mm 93% 0cm 82° 21°C 4.6mm 0.17kPa 3863m 1.3m/s 1m/s
12:00
4% 20°C 0.44mm 97% 0cm 83° 20°C 5.4mm 0.08kPa 3319m 0.9m/s 0.77m/s
13:00
5% 20°C 0.32mm 96% 0cm 68° 20°C 3.9mm 0.09kPa 7090m 0.88m/s 0.79m/s
14:00
5% 19°C 0.19mm 96% 0cm 53° 20°C 2.4mm 0.11kPa 10861m 0.85m/s 0.81m/s
15:00
6% 19°C 0.07mm 95% 0cm 39° 20°C 0.88mm 0.12kPa 14632m 0.83m/s 0.82m/s
16:00
5% 19°C 0.05mm 95% 0cm 24° 20°C 1.2mm 0.11kPa 11959m 0.71m/s 0.67m/s
17:00
4% 19°C 0.02mm 95% 0cm 9.3° 20°C 1.5mm 0.11kPa 9286m 0.58m/s 0.51m/s
18:00 ☾
3% 19°C 0mm 95% 0cm -5.3° 20°C 1.8mm 0.11kPa 6613m 0.46m/s 0.36m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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