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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 Spread3.7°C
Visibility24134 (Clear)
Relative Humidity80%
Wind Speed3.8m/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 79 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Costa_Rica
Fog Probability
≥ 75.0%
Tue, Jul 7
23:000%
Wed, Jul 8
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
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21:000%
22:000%
23:000%
Thu, Jul 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
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23:000%
Fri, Jul 10
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
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Sat, Jul 11
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
Wed, Jul 8 Sunrise 05:16 Sunset 17:55
07:00
8% 23°C 0mm 80% 0cm 23° 27°C 0mm 0.7kPa 24134m 4.5m/s 3.8m/s
08:00
7% 24°C 0mm 80% 0cm 37° 27°C 0.06mm 0.74kPa 24135m 4.8m/s 4.1m/s
09:00
5% 24°C 0mm 79% 0cm 51° 28°C 0.13mm 0.78kPa 24135m 4.8m/s 4.4m/s
10:00
4% 24°C 0mm 79% 0cm 64° 28°C 0.13mm 0.8kPa 24135m 4.7m/s 4.5m/s
11:00
4% 24°C 0mm 78% 0cm 75° 28°C 0.13mm 0.81kPa 24135m 4.4m/s 4.4m/s
12:00
3% 24°C 0mm 78% 0cm 76° 28°C 0.13mm 0.82kPa 24134m 4.5m/s 4.5m/s
13:00
10% 24°C 0mm 77% 0cm 66° 28°C 0mm 0.87kPa 24134m 4.5m/s 4.4m/s
14:00
16% 24°C 0mm 76% 0cm 53° 28°C 0mm 0.9kPa 24134m 4.3m/s 4.2m/s
15:00
23% 24°C 0mm 77% 0cm 40° 28°C 0mm 0.9kPa 24135m 4.1m/s 4m/s
16:00
17% 24°C 0mm 77% 0cm 26° 29°C 0mm 0.91kPa 24134m 3.6m/s 3.5m/s
17:00
10% 24°C 0mm 77% 0cm 12° 29°C 0mm 0.89kPa 24134m 3.4m/s 3.1m/s
18:00
4% 24°C 0mm 78% 0cm -1.6° 28°C 0.5mm 0.82kPa 24135m 2.5m/s 2.2m/s
19:00
3% 24°C 0mm 79% 0cm -15° 28°C 1.6mm 0.78kPa 2993m 2.1m/s 1.8m/s
20:00
1% 24°C 0mm 79% 0cm -28° 28°C 2.8mm 0.77kPa 12618m 2.4m/s 2m/s
21:00
0% 24°C 0mm 79% 0cm -40° 28°C 3.6mm 0.76kPa 9119m 2.9m/s 2.5m/s
22:00
0% 24°C 0mm 80% 0cm -50° 28°C 4.1mm 0.73kPa 24134m 3.3m/s 3.1m/s
23:00
0% 24°C 0mm 82% 0cm -57° 27°C 4.5mm 0.67kPa 10387m 4.1m/s 3.8m/s
Thu, Jul 9 Sunrise 05:16 Sunset 17:55
24:00
0% 24°C 0mm 82% 0cm -57° 27°C 5.1mm 0.66kPa 24135m 5m/s 4.3m/s
01:00
0% 24°C 0mm 82% 0cm -52° 27°C 0.06mm 0.66kPa 24135m 5.1m/s 4.4m/s
02:00
0% 24°C 0mm 82% 0cm -42° 27°C 0.31mm 0.63kPa 24134m 5.2m/s 4.3m/s
03:00
0% 24°C 0mm 82% 0cm -31° 27°C 0.94mm 0.63kPa 24135m 5m/s 4.1m/s
04:00
0% 23°C 0mm 81% 0cm -18° 27°C 1.3mm 0.66kPa 24134m 5m/s 4.1m/s
05:00
0% 23°C 0mm 81% 0cm -4.5° 27°C 1.4mm 0.67kPa 24135m 4.5m/s 3.6m/s
06:00
0% 23°C 0mm 81% 0cm 9.2° 27°C 2.1mm 0.67kPa 24135m 4.6m/s 3.6m/s
07:00
0% 23°C 0mm 79% 0cm 23° 27°C 0mm 0.77kPa 24134m 4.6m/s 3.5m/s
08:00
1% 23°C 0mm 77% 0cm 37° 28°C 0.06mm 0.84kPa 24135m 4.7m/s 3.5m/s
09:00
1% 23°C 0mm 76% 0cm 51° 28°C 0.19mm 0.88kPa 24135m 5.2m/s 4m/s
10:00
2% 24°C 0mm 77% 0cm 64° 28°C 0.19mm 0.87kPa 24134m 5.4m/s 5.1m/s
11:00
2% 24°C 0mm 78% 0cm 75° 28°C 0.19mm 0.82kPa 24135m 5.3m/s 5.3m/s
12:00
3% 24°C 0mm 78% 0cm 76° 28°C 0.25mm 0.83kPa 24135m 5m/s 4.8m/s
13:00
2% 24°C 0mm 77% 0cm 66° 28°C 0.06mm 0.88kPa 24134m 4.1m/s 3.8m/s
14:00
1% 24°C 0mm 76% 0cm 53° 28°C 0.13mm 0.91kPa 24135m 3.5m/s 3.3m/s
15:00
0% 24°C 0mm 77% 0cm 40° 28°C 0.19mm 0.9kPa 24135m 3.6m/s 3.4m/s
16:00
0% 24°C 0mm 78% 0cm 26° 28°C 1.4mm 0.82kPa 8727m 2.2m/s 2m/s
17:00
0% 24°C 0mm 80% 0cm 12° 28°C 2.9mm 0.76kPa 18659m 3.4m/s 2.9m/s
18:00
0% 24°C 0mm 79% 0cm -1.6° 28°C 3.6mm 0.8kPa 24135m 3.1m/s 2.7m/s
19:00
0% 24°C 0mm 79% 0cm -15° 28°C 1.1mm 0.78kPa 24135m 2m/s 1.8m/s
20:00
0% 24°C 0mm 81% 0cm -28° 27°C 1.8mm 0.7kPa 9764m 3.1m/s 2.5m/s
21:00
0% 24°C 0mm 80% 0cm -40° 27°C 2.9mm 0.71kPa 4759m 3.1m/s 2.7m/s
22:00
0% 24°C 0mm 81% 0cm -50° 27°C 3.8mm 0.7kPa 24135m 3.9m/s 3.4m/s
23:00
0% 24°C 0mm 80% 0cm -57° 27°C 3.8mm 0.71kPa 24134m 4.4m/s 3.9m/s
Fri, Jul 10 Sunrise 05:17 Sunset 17:55
24:00
0% 24°C 0mm 82% 0cm -58° 27°C 3.9mm 0.67kPa 24135m 5m/s 4.4m/s
01:00
0% 24°C 0mm 82% 0cm -52° 27°C 0mm 0.63kPa 24134m 5.4m/s 4.7m/s
02:00
0% 24°C 0mm 84% 0cm -43° 27°C 0.38mm 0.55kPa 18112m 5.7m/s 4.9m/s
03:00
0% 24°C 0mm 85% 0cm -31° 27°C 0.81mm 0.52kPa 24135m 5.8m/s 4.8m/s
04:00
0% 24°C 0mm 85% 0cm -18° 26°C 1.6mm 0.53kPa 24134m 6m/s 4.7m/s
05:00
0% 24°C 0mm 84% 0cm -4.6° 27°C 1.9mm 0.56kPa 24134m 7m/s 5.5m/s
06:00
0% 24°C 0mm 83% 0cm 9.1° 27°C 1.9mm 0.58kPa 24134m 7.4m/s 5.8m/s
07:00
0% 24°C 0mm 82% 0cm 23° 27°C 0.13mm 0.62kPa 24135m 7.3m/s 5.6m/s
08:00
1% 24°C 0mm 81% 0cm 37° 27°C 0.31mm 0.68kPa 24134m 7.6m/s 5.7m/s
09:00
1% 24°C 0mm 79% 0cm 51° 28°C 0.31mm 0.79kPa 24134m 7.5m/s 6.2m/s
10:00
1% 24°C 0mm 78% 0cm 64° 28°C 0.38mm 0.83kPa 24135m 7.4m/s 6.7m/s
11:00
0% 24°C 0mm 79% 0cm 75° 28°C 0.44mm 0.81kPa 24135m 7.3m/s 7m/s
12:00
0% 24°C 0mm 80% 0cm 76° 28°C 0.63mm 0.76kPa 24135m 6.8m/s 6.5m/s
13:00
0% 23°C 0mm 85% 0cm 66° 26°C 3.3mm 0.48kPa 17322m 4.7m/s 4.6m/s
14:00
0% 22°C 0mm 91% 0cm 53° 23°C 6mm 0.25kPa 10509m 2.6m/s 2.6m/s
15:00
0% 21°C 0mm 97% 0cm 40° 21°C 8.6mm 0.08kPa 3696m 0.51m/s 0.62m/s
16:00
0% 21°C 0.43mm 97% 0cm 26° 21°C 11mm 0.08kPa 3427m 0.85m/s 0.81m/s
17:00
0% 20°C 0.87mm 97% 0cm 12° 21°C 14mm 0.08kPa 3158m 1.2m/s 1m/s
18:00
0% 20°C 1.3mm 96% 0cm -1.5° 21°C 16mm 0.09kPa 2889m 1.5m/s 1.2m/s
19:00
0% 20°C 0.9mm 96% 0cm -15° 21°C 12mm 0.11kPa 9971m 1.4m/s 1.2m/s
20:00
0% 20°C 0.51mm 95% 0cm -28° 21°C 7.1mm 0.13kPa 17053m 1.2m/s 1.2m/s
21:00
0% 20°C 0.11mm 94% 0cm -40° 21°C 2.7mm 0.15kPa 24135m 1m/s 1.2m/s
22:00
0% 20°C 0.16mm 94% 0cm -50° 21°C 2.9mm 0.15kPa 23456m 0.9m/s 1m/s
23:00
0% 20°C 0.22mm 94% 0cm -57° 21°C 3.1mm 0.16kPa 22778m 0.76m/s 0.85m/s
Sat, Jul 11 Sunrise 05:17 Sunset 17:55
24:00
0% 20°C 0.27mm 93% 0cm -58° 21°C 3.3mm 0.16kPa 22099m 0.62m/s 0.67m/s
01:00
0% 20°C 0.18mm 92% 0cm -52° 22°C 2.9mm 0.21kPa 21954m 0.72m/s 0.63m/s
02:00
0% 21°C 0.09mm 90% 0cm -43° 22°C 2.5mm 0.26kPa 21809m 0.82m/s 0.6m/s
03:00
0% 21°C 0mm 89% 0cm -31° 23°C 2.2mm 0.31kPa 21664m 0.93m/s 0.56m/s
04:00
0% 21°C 0.17mm 88% 0cm -18° 23°C 3.4mm 0.35kPa 16624m 1m/s 0.85m/s
05:00
0% 22°C 0.33mm 87% 0cm -4.6° 24°C 4.5mm 0.39kPa 11584m 1.1m/s 1.1m/s
06:00
0% 22°C 0.5mm 86% 0cm 9.1° 24°C 5.7mm 0.44kPa 6544m 1.1m/s 1.4m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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