Manuel Antonio weather in August
August in Manuel Antonio: warm, soaked, with clean air — a gamble, with 31 rainy days.
#11 of 12 months in Manuel Antonio · #734 of 897 destinations to visit in August · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Manuel Antonio in August
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Manuel Antonio climate normals — August
| Daytime high | 27°C / 80°F | 🌤 warm |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Rainfall | 1026 mm / 40.4 in | ⛈ soaked |
| Rainy days | 31 days | |
| Humidity | 93% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 7.1 h/day | |
| Daylight | 12.4 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 26 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Manuel Antonio in August — FAQ
- Is August a good time to visit Manuel Antonio?
- August in Manuel Antonio: warm, soaked, with clean air — a gamble, with 31 rainy days. It ranks #11 of 12 months for Manuel Antonio on SeasonMap's comfort score (62/100).
- What is the weather like in Manuel Antonio in August?
- In August, Manuel Antonio averages a daily high of 26.6°C and a low of 21.7°C, with about 1026.1 mm of rain over roughly 31 rainy days.
- What is the air quality in Manuel Antonio in August?
- Manuel Antonio has a mean US Air Quality Index of about 26 in August.