Biarritz, France
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Biarritz

May beach and weather guide

Based on 5 years of historical ERA5 climate data

Photo by Andri Klopfenstein on Unsplash

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May beach conditions — historical average

Mixed
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📉 Our data shows more unsettled conditions in 2024-2025 compared to 2021-2022 for this destination and time of year
19.7°C Temp
17.5°C Sea temp
9.6 Rain days
11.1h Sunshine hrs
79.2% Humidity
20%

Reliable conditions

1 of 5 years were good

Year by year — mid May

2025 Mixed 19.3°C · 11 rainy days · 11.8h sun
2024 Mixed 19.4°C · 10 rainy days · 11.5h sun
2023 Poor 16.7°C · 12 rainy days · 11.3h sun
2022 Good 24.9°C · 3 rainy days · 12.6h sun
2021 Poor 18.3°C · 12 rainy days · 8.3h sun

Other months in Biarritz

May June July August September

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Each trip type is scored on what matters most for it — snow days for skiing, sea temp for beach, sunshine for sightseeing.

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About Biarritz in May

Based on 5 years of ERA5 historical climate data, May in Biarritz has historically been mixed for a beach holiday. Average temperatures of 19.7°C with sea temperatures around 17.5°C and 9.6 rainy days on average.

1 of the last 5 years had good beach conditions during this period. This data uses ERA5 reanalysis records — real historical measurements, not generalised averages.

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