Offshore Stays

Surf Ericeira in August

Surfing Ericeira in August: outside the main surf season, air around 21°C, sea around 17°C, 0.3 mm of rain a day on average. Wetsuit: a 3/2mm full wetsuit.

Surf season

Off-season

Air temperature

21°C

Sea temperature

17°C

Rain

0.3 mm/day

Wind

19 km/h avg

Average wave height

1.4 m (5 ft)

Big days (top 10%)

2.0 m (7 ft)+

Swell period

9 s

Main swell direction

From NNW (338°)

What to wear: with the sea around 17°C in August, expect a 3/2mm full wetsuit.

Surf size in Ericeira in August

Offshore of Ericeira, waves in August average 1.4 m (5 ft), below the year-round average of 2.0 m — the smallest month of the year. One hour in ten is 2.0 m (7 ft) or bigger. The dominant swell runs at about 9 seconds from the NNW.

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.

August in the context of Ericeira's surf season

Ericeira's main surf season runs March–May, September–November. August is outside it.

Full Ericeira surf and remote-work guide →

Frequently asked questions

Is August a good month to surf Ericeira?
August is outside Ericeira's main surf season (March–May, September–November), so surf is less reliable, though it can still work on the right day.
How warm is the sea in Ericeira in August?
About 17°C on average, which calls for a 3/2mm full wetsuit.
What is the weather like in Ericeira in August?
Air temperature averages 21°C, with about 0.3 mm of rain per day and average winds of 19 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 39.0°N 9.5°W), retrieved 22 Oct 2026.