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Costa Rica weather in August 2025
Expect 24°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Costa Rica in August. Check more long-term weather averages for Costa Rica in August before you book your next holiday to Costa Rica in 2025/2026.
- 24°C max day temperature
24 - 6 hours of sunshine per day
- 24 days with some rainfall
24 - 17°C min night temperature
17 - 12 hours of daylight per day
12 - Low heat & humidity
L - 282 mm of monthly rainfall
282 - 11+ (Extreme) UV index
11
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The August weather guide for Costa Rica (San Jose) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Costa Rica destinations
Below are average maximum temperatures at popular countries, regions and places in Costa Rica in August. Select a holiday destination to see more weather parameters.
All Costa Rica destinations
- Dominical
- Golfito
- Jaco
- La Fortuna
- Liberia
- Monteverde
- Punta Leone
- Quepos
- Samara
- San Jose
- Tamarindo
- Tambor
- Tortuquero
Metric (°C / mm) | Imperial (°F / inches)
More about Costa Rica
How hot is it in Costa Rica in August?
Daytime temperatures usually reach 24°C in San Jose, Costa Rica in August, falling to 17°C at night.
How sunny is it in Costa Rica in August?
There are normally 6 hours of bright sunshine each day in San Jose, Costa Rica in August - that's 50% of daylight hours.
Does it rain in Costa Rica in August?
There are usually 24 days with some rain in San Jose, Costa Rica in August and the average monthly rainfall is 282mm.
Costa Rica August sunrise & sunset times
Browse the sunrise and sunset times for Costa Rica in August 2025. Select a month to view Costa Rica sunrise and sunset times for the next 12 months. The Costa Rica sunrise and sunset times shown below are for San Jose.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:26 | 17:59 |
| Saturday, 16th August 2025 | 05:27 | 17:54 |
| Sunday, 31st August 2025 | 05:27 | 17:46 |
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