Biarritz weather in August
August in Biarritz: warm, a little rain, with clean air — one of the best months to visit.
#2 of 12 months in Biarritz · #250 of 897 destinations to visit in August · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Biarritz in August
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Biarritz climate normals — August
| Daytime high | 24°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 18°C / 65°F | |
| Rainfall | 67 mm / 2.6 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 11.5 h/day | |
| Daylight | 13.9 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Biarritz in August — FAQ
- Is August a good time to visit Biarritz?
- August in Biarritz: warm, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Biarritz on SeasonMap's comfort score (87/100).
- What is the weather like in Biarritz in August?
- In August, Biarritz averages a daily high of 24.2°C and a low of 18.2°C, with about 67.2 mm of rain over roughly 10.8 rainy days.
- What is the air quality in Biarritz in August?
- Biarritz has a mean US Air Quality Index of about 42 in August.