The temperatures in Biarritz in May are usually low and can range between 12°C and 18°C.
You can expect rain for roughly half of the month of May in Biarritz. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Biarritz in May 2025.
If you’re planning to visit Biarritz in the near future, we highly recommend that you review the 14 day weather forecast for Biarritz before you arrive.
Temperatures
18° / 12°
Rainy Days
8
Snowy Days
0
Dry Days
24
Rainfall
131
mm
Sun Hours
9.3
Hrs
