The highest day temperature in April 2026 was 75°F. The lowest night temperature was 39°F. The average values for day and night temperatures during April were 62.8°F и 54.3°F respectivly.

The average sea surface temperature in April 2026 for Biarritz was 60.7°F. The maximum and minimum values were 56.2°F and 64.8°F respectively.

You can expect various weather conditions during April. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in April for Biarritz is 2.4 in. It makes april one of the least rainy months of the year.

The average wind speed in April is 7.8 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Biarritz in April is 7.3 hours.