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Rule Fog Hunter

Turrialba - Fog Hunter - Costa Rica

Turrialba, Cartago 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 Spread1.2°C
Visibility20858 (Clear)
Relative Humidity93%
Wind Speed1.3m/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 80 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Costa_Rica
Fog Probability
≥ 75.0%
Sat, May 23
22:0039%
23:0041%
Sun, May 24
24:0039%
01:0058%
02:0058%
03:0069%
04:0058%
05:0069%
06:0055%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:0030%
20:000%
21:000%
22:000%
23:000%
Mon, May 25
24:000%
01:0069%
02:0071%
03:0055%
04:0053%
05:0053%
06:0055%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:0065%
20:0030%
21:0029%
22:000%
23:000%
Tue, May 26
24:000%
01:000%
02:0055%
03:0055%
04:0071%
05:0067%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
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 05:12 Sunset 17:50
07:00
0% 18°C 0mm 93% 0cm 24° 19°C 0mm 0.16kPa 20858m 2.5m/s 1.3m/s
08:00
0% 18°C 0mm 87% 0cm 38° 20°C 0.06mm 0.3kPa 22253m 2.9m/s 1.8m/s
09:00
0% 18°C 0mm 80% 0cm 52° 22°C 0.13mm 0.52kPa 24134m 3.2m/s 2.2m/s
10:00
0% 19°C 0mm 79% 0cm 65° 23°C 0.88mm 0.58kPa 18166m 3.2m/s 2.5m/s
11:00
0% 19°C 0mm 83% 0cm 77° 22°C 2.3mm 0.45kPa 16322m 3.1m/s 2.6m/s
12:00
0% 19°C 0mm 86% 0cm 77° 22°C 4.1mm 0.38kPa 6050m 3.1m/s 2.6m/s
13:00
1% 19°C 0mm 88% 0cm 66° 21°C 1.8mm 0.3kPa 4522m 3m/s 2.4m/s
14:00
3% 19°C 0mm 90% 0cm 53° 21°C 3.4mm 0.25kPa 1506m 3.1m/s 2.4m/s
15:00
4% 19°C 0mm 91% 0cm 39° 21°C 4.4mm 0.23kPa 16183m 2.6m/s 2m/s
16:00
3% 19°C 0mm 92% 0cm 25° 20°C 4.8mm 0.18kPa 14027m 2.4m/s 1.8m/s
17:00
1% 18°C 0mm 95% 0cm 11° 19°C 5.2mm 0.1kPa 13959m 2.1m/s 1.5m/s
18:00
0% 17°C 0mm 95% 0cm -2.9° 18°C 5.6mm 0.09kPa 18732m 1.8m/s 1.2m/s
19:00
0% 17°C 0mm 96% 0cm -17° 18°C 0.38mm 0.08kPa 12399m 1.7m/s 0.84m/s
20:00
0% 17°C 0mm 99% 0cm -30° 18°C 1.1mm 0.03kPa 4564m 1.7m/s 0.81m/s
21:00
0% 18°C 0mm 99% 0cm -42° 18°C 1.6mm 0.02kPa 280m 1.8m/s 0.85m/s
22:00
0% 18°C 0.01mm 99% 0cm -52° 18°C 2mm 0.01kPa 250m 2.2m/s 0.95m/s
23:00
0% 18°C 0.03mm 99% 0cm -58° 18°C 2.3mm 0.02kPa 199m 1.9m/s 0.93m/s
Mon, May 25 Sunrise 05:12 Sunset 17:50
24:00
0% 18°C 0mm 99% 0cm -58° 18°C 2.4mm 0.02kPa 404m 1.8m/s 0.86m/s
01:00
0% 18°C 0mm 98% 0cm -52° 18°C 0.06mm 0.03kPa 2406m 2.1m/s 0.96m/s
02:00
1% 17°C 0mm 97% 0cm -42° 17°C 0.13mm 0.06kPa 20816m 2.2m/s 1.2m/s
03:00
1% 17°C 0mm 96% 0cm -30° 17°C 0.19mm 0.07kPa 20812m 2.4m/s 1.2m/s
04:00
1% 16°C 0mm 96% 0cm -17° 17°C 0.19mm 0.09kPa 24135m 2.1m/s 0.98m/s
05:00
1% 16°C 0mm 96% 0cm -3.6° 17°C 0.19mm 0.09kPa 24134m 2m/s 1m/s
06:00
1% 17°C 0mm 96% 0cm 10° 17°C 0.19mm 0.07kPa 24135m 2.3m/s 1.1m/s
07:00
1% 17°C 0mm 93% 0cm 24° 18°C 0mm 0.15kPa 24134m 2.5m/s 1.3m/s
08:00
0% 17°C 0mm 84% 0cm 38° 20°C 0mm 0.36kPa 24134m 2.6m/s 1.7m/s
09:00
0% 17°C 0mm 76% 0cm 52° 22°C 0mm 0.63kPa 24134m 3.6m/s 2.3m/s
10:00
0% 17°C 0mm 70% 0cm 65° 23°C 0.13mm 0.82kPa 21230m 3.4m/s 2.6m/s
11:00
0% 18°C 0mm 69% 0cm 77° 23°C 0.38mm 0.89kPa 23403m 3.5m/s 2.9m/s
12:00
0% 18°C 0mm 68% 0cm 77° 24°C 0.63mm 0.96kPa 20196m 3.3m/s 3m/s
13:00
0% 18°C 0mm 70% 0cm 66° 23°C 0.19mm 0.86kPa 24135m 3m/s 3m/s
14:00
0% 18°C 0mm 74% 0cm 53° 23°C 0.44mm 0.71kPa 24134m 2.9m/s 3m/s
15:00
0% 18°C 0mm 84% 0cm 39° 21°C 0.63mm 0.4kPa 14493m 2.9m/s 2.6m/s
16:00
0% 18°C 0mm 90% 0cm 25° 20°C 0.81mm 0.24kPa 24134m 2.6m/s 2m/s
17:00
0% 18°C 0mm 93% 0cm 11° 19°C 1mm 0.16kPa 24134m 2.3m/s 1.6m/s
18:00
0% 17°C 0mm 94% 0cm -2.8° 18°C 1.1mm 0.13kPa 9549m 2m/s 1.3m/s
19:00
0% 18°C 0mm 96% 0cm -16° 18°C 0.19mm 0.09kPa 5894m 1.4m/s 0.79m/s
20:00
0% 17°C 0mm 96% 0cm -29° 18°C 0.31mm 0.08kPa 15512m 1.3m/s 0.73m/s
21:00
0% 17°C 0mm 95% 0cm -42° 18°C 0.38mm 0.09kPa 16341m 1.2m/s 0.47m/s
22:00
0% 17°C 0mm 92% 0cm -52° 18°C 0.38mm 0.16kPa 20956m 1.4m/s 0.91m/s
23:00
0% 17°C 0mm 95% 0cm -58° 18°C 0.38mm 0.1kPa 21004m 1.1m/s 0.55m/s
Tue, May 26 Sunrise 05:12 Sunset 17:50
24:00
0% 17°C 0mm 95% 0cm -58° 18°C 0.38mm 0.1kPa 20967m 1.1m/s 0.59m/s
01:00
0% 17°C 0mm 95% 0cm -52° 18°C 0mm 0.1kPa 24134m 1.2m/s 0.5m/s
02:00
0% 17°C 0mm 97% 0cm -42° 17°C 0mm 0.07kPa 21749m 0.82m/s 0.24m/s
03:00
0% 17°C 0mm 96% 0cm -30° 17°C 0.06mm 0.07kPa 21974m 0.8m/s 0.32m/s
04:00
0% 17°C 0mm 97% 0cm -17° 17°C 0.06mm 0.05kPa 21066m 0.92m/s 0.4m/s
05:00
0% 17°C 0mm 96% 0cm -3.6° 17°C 0.06mm 0.07kPa 3201m 1.1m/s 0.4m/s
06:00
0% 17°C 0mm 94% 0cm 10° 18°C 0.06mm 0.12kPa 21133m 1.1m/s 0.4m/s
07:00
0% 17°C 0mm 85% 0cm 24° 19°C 0mm 0.33kPa 24134m 1.6m/s 1.1m/s
08:00
0% 17°C 0mm 76% 0cm 38° 21°C 0mm 0.6kPa 24135m 1.6m/s 1.5m/s
09:00
0% 17°C 0mm 72% 0cm 52° 22°C 0.06mm 0.76kPa 19937m 2.3m/s 2.1m/s
10:00
0% 18°C 0mm 74% 0cm 65° 23°C 0.63mm 0.72kPa 20054m 2.3m/s 2.4m/s
11:00
0% 18°C 0mm 79% 0cm 76° 22°C 1.6mm 0.55kPa 11419m 2.1m/s 2.4m/s
12:00
0% 19°C 0.01mm 84% 0cm 77° 22°C 2.9mm 0.42kPa 3129m 2m/s 2.1m/s
13:00
0% 19°C 0.23mm 87% 0cm 66° 22°C 4.1mm 0.33kPa 8127m 3.1m/s 2.2m/s
14:00
0% 20°C 0.46mm 91% 0cm 53° 21°C 5.3mm 0.23kPa 13125m 4.2m/s 2.3m/s
15:00
0% 20°C 0.68mm 94% 0cm 39° 21°C 6.4mm 0.14kPa 18124m 5.3m/s 2.4m/s
16:00
0% 20°C 0.49mm 93% 0cm 25° 21°C 7mm 0.17kPa 20127m 5.8m/s 2.6m/s
17:00
0% 19°C 0.29mm 92% 0cm 11° 21°C 7.6mm 0.2kPa 22131m 6.2m/s 2.9m/s
18:00
0% 19°C 0.1mm 91% 0cm -2.8° 20°C 8.2mm 0.22kPa 24135m 6.7m/s 3.1m/s
19:00
0% 19°C 0.07mm 90% 0cm -16° 20°C 5.5mm 0.24kPa 24135m 4.9m/s 2.6m/s
20:00
0% 19°C 0.03mm 89% 0cm -29° 20°C 2.8mm 0.26kPa 24135m 3.2m/s 2.1m/s
21:00
0% 19°C 0mm 88% 0cm -41° 21°C 0.06mm 0.28kPa 24135m 1.4m/s 1.7m/s
22:00
0% 19°C 0mm 89% 0cm -51° 21°C 0.06mm 0.27kPa 24135m 1.3m/s 1.5m/s
23:00
0% 19°C 0mm 89% 0cm -58° 21°C 0.06mm 0.26kPa 24135m 1.2m/s 1.3m/s
Wed, May 27 Sunrise 05:12 Sunset 17:51
24:00
0% 19°C 0mm 89% 0cm -58° 21°C 0.06mm 0.26kPa 24135m 1m/s 1.2m/s
01:00
0% 19°C 0mm 80% 0cm -52° 23°C 0.04mm 0.54kPa 24135m 1m/s 1.2m/s
02:00
0% 19°C 0mm 72% 0cm -42° 25°C 0.02mm 0.88kPa 24135m 1m/s 1.2m/s
03:00
0% 19°C 0mm 63% 0cm -30° 27°C 0mm 1.3kPa 24135m 1m/s 1.3m/s
04:00
0% 19°C 0mm 61% 0cm -17° 27°C 0.02mm 1.4kPa 24135m 1.2m/s 1.7m/s
05:00
0% 20°C 0mm 60% 0cm -3.6° 28°C 0.04mm 1.5kPa 24135m 1.4m/s 2.1m/s
06:00
0% 20°C 0mm 59% 0cm 10° 29°C 0.06mm 1.6kPa 24135m 1.6m/s 2.6m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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