Biarritz weather in May
May in Biarritz: nice, rainy, with clean air — a great time to visit.
#5 of 12 months in Biarritz · #611 of 897 destinations to visit in May · comfort 77/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Biarritz in May
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Biarritz climate normals — May
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Rainfall | 96 mm / 3.8 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 11.4 h/day | |
| Daylight | 14.7 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Biarritz in May — FAQ
- Is May a good time to visit Biarritz?
- May in Biarritz: nice, rainy, with clean air — a great time to visit. It ranks #5 of 12 months for Biarritz on SeasonMap's comfort score (77/100).
- What is the weather like in Biarritz in May?
- In May, Biarritz averages a daily high of 18.8°C and a low of 12.4°C, with about 95.6 mm of rain over roughly 13.4 rainy days.
- What is the air quality in Biarritz in May?
- Biarritz has a mean US Air Quality Index of about 49 in May.