Offshore Stays

Surf San Sebastián in June

Surfing San Sebastián in June: outside the main surf season, air around 18°C, sea around 20°C, 2.3 mm of rain a day on average. Wetsuit: a 2mm shorty or springsuit.

Surf season

Off-season

Air temperature

18°C

Sea temperature

20°C

Rain

2.3 mm/day

Wind

12 km/h avg

Average wave height

1.1 m (3 ft)

Big days (top 10%)

1.6 m (5 ft)+

Swell period

9 s

Main swell direction

From NW (315°)

What to wear: with the sea around 20°C in June, expect a 2mm shorty or springsuit.

Surf size in San Sebastián in June

Offshore of San Sebastián, waves in June average 1.1 m (3 ft), below the year-round average of 1.5 m — the 11th biggest month of the year. One hour in ten is 1.6 m (5 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.

June in the context of San Sebastián's surf season

San Sebastián's main surf season runs March–April, September–November. June is outside it.

Full San Sebastián surf and remote-work guide →

Frequently asked questions

Is June a good month to surf San Sebastián?
June is outside San Sebastián's main surf season (March–April, September–November), so surf is less reliable, though it can still work on the right day.
How warm is the sea in San Sebastián in June?
About 20°C on average, which calls for a 2mm shorty or springsuit.
What is the weather like in San Sebastián in June?
Air temperature averages 18°C, with about 2.3 mm of rain per day and average winds of 12 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 2.0°W), retrieved 22 Oct 2026.