Offshore Stays

Surf Biarritz in July

Surfing Biarritz in July: outside the main surf season, air around 21°C, sea around 22°C, 1.6 mm of rain a day on average. Wetsuit: a 2mm shorty or springsuit.

Surf season

Off-season

Air temperature

21°C

Sea temperature

22°C

Rain

1.6 mm/day

Wind

11 km/h avg

Average wave height

0.9 m (3 ft)

Big days (top 10%)

1.3 m (4 ft)+

Swell period

9 s

Main swell direction

From NW (315°)

What to wear: with the sea around 22°C in July, expect a 2mm shorty or springsuit.

Surf size in Biarritz in July

Offshore of Biarritz, waves in July average 0.9 m (3 ft), below the year-round average of 1.3 m — the smallest month of the year. One hour in ten is 1.3 m (4 ft) or bigger. The dominant swell runs at about 9 seconds from the NW.

These are open-ocean figures from 10 years of hourly wave data, not a beach forecast: a sheltered break will be smaller, an exposed reef or point can be bigger.

July in the context of Biarritz's surf season

Biarritz's main surf season runs April–May, September–November. July is outside it.

Full Biarritz surf and remote-work guide →

Frequently asked questions

Is July a good month to surf Biarritz?
July is outside Biarritz's main surf season (April–May, September–November), so surf is less reliable, though it can still work on the right day.
How warm is the sea in Biarritz in July?
About 22°C on average, which calls for a 2mm shorty or springsuit.
What is the weather like in Biarritz in July?
Air temperature averages 21°C, with about 1.6 mm of rain per day and average winds of 11 km/h.
Climate: NASA POWER (MERRA-2) monthly climatology, 2001–2020. Sea temperature: NOAA Coral Reef Watch CoralTemp v3.1, 5 km monthly SST, 2015–2025 mean (nearest ocean cell). Surf season is Offshore Stays editorial. Waves: Open-Meteo Marine API, ECMWF ERA5-Ocean hourly reanalysis, 2016–2025 (offshore grid cell 43.5°N 1.5°W), retrieved 22 Oct 2026.