Start of the wetter season · Weather & things to do
La Fortuna in August
Little changes in La Fortuna from July: highs stay near 83°F (28°C), lows near 72°F (22°C), and about 7.0 in (177 mm) of rain falls.
Our comfort score puts it mid-table at 46/100, 8th of 12.
- Avg high
- 83°F (28°C)
- Avg low
- 72°F (22°C)
- Rain
- 7.0 in (177 mm)
- Humidity
- 90%
- Cloud cover
- 84%
- Daylight
- ~12 h 21 min
- Comfort score
- 46/100 · Fair
What August feels like
Days are warm, averaging 83°F (28°C).
Nights stay warm too, with lows averaging 72°F (22°C).
Humidity averages 90%, so the air feels sticky and the heat feels stronger than the thermometer says.
Rain is a real factor, with about 7.0 in (177 mm) across the month.
Skies are often grey, with average cloud cover around 84%.
Plan around August
August sits mid-table; the best months are January – March.
- Comfort slips from 49/100 in July to 46/100.
- Our Costa Rica Pura Vida route recommends Dec – Apr, so August falls outside its suggested window.
What to pack for August
- Light, breathable clotheshighs average 83°F
- Quick-dry fabrics90% average humidity
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost picks involve some walking
What to do in La Fortuna in August
With 7.0 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.
Restaurante Don Rufino
Long-running grill in town for steak and local plates.
Why now A sit-down stop to wait out showers in a month with 7.0 in of rain.
Soda Viquez
Local soda serving casados and gallo pinto.
Why now Easy to slot in when August's rain moves in.
Lava Lounge
Open-air bar and restaurant with cocktails.
Why now Keeps part of the day dry on wetter August days.
Místico Arenal Hanging Bridges Park
Rainforest trail with suspension bridges at canopy height.
La Fortuna Waterfall
70-meter waterfall reached by about 500 steps.
Nearby in August
- Monteverde in August~16 mi · highs 72°F, 6.9 in rain · 6°C (11°F) cooler by day, about as wet
- Manuel Antonio in August~82 mi · highs 83°F, 10.6 in rain · similar daytime temperatures, wetter
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~506 m to La Fortuna's ~253 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
La Fortuna in August: quick answers
Is August a good time to visit La Fortuna?
It's middling, scoring 46/100. The best months are January – March, at up to 79. Expect highs of 83°F (28°C) and 7.0 in (177 mm) of rain. Our Costa Rica Pura Vida route recommends Dec – Apr, so August is outside its suggested window.
How hot is La Fortuna in August?
Average highs are 83°F (28°C) and average lows 72°F (22°C), making it the 6th-warmest month by daytime highs.
Does it rain a lot in La Fortuna in August?
Yes: about 7.0 in (177 mm) of rain falls across August on average, the 6th-wettest month of the year. The annual total is about 63.2 in (1605 mm).
What should I pack for La Fortuna in August?
Bring light, breathable clothes (highs average 83°F), quick-dry fabrics (90% average humidity), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most picks involve some walking).
More on La Fortuna
Planning La Fortuna in August?
Share this August plan with your group, poll everyone on dates and keep the packing list in one place.