Offshore Stays

Surf Aljezur in August

Surfing Aljezur in August: outside the main surf season, air around 23°C, sea around 18°C, 0.1 mm of rain a day on average. Wetsuit: a 3/2mm full wetsuit.

Surf season

Off-season

Air temperature

23°C

Sea temperature

18°C

Rain

0.1 mm/day

Wind

18 km/h avg

Average wave height

1.4 m (4 ft)

Big days (top 10%)

2.0 m (6 ft)+

Swell period

9 s

Main swell direction

From NW (315°)

What to wear: with the sea around 18°C in August, expect a 3/2mm full wetsuit.

Surf size in Aljezur in August

Offshore of Aljezur, waves in August average 1.4 m (4 ft), below the year-round average of 1.9 m — the 11th biggest month of the year. One hour in ten is 2.0 m (6 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.

August in the context of Aljezur's surf season

Aljezur's main surf season runs April–June, September–November. August is outside it.

Full Aljezur surf and remote-work guide →

Frequently asked questions

Is August a good month to surf Aljezur?
August is outside Aljezur's main surf season (April–June, September–November), so surf is less reliable, though it can still work on the right day.
How warm is the sea in Aljezur in August?
About 18°C on average, which calls for a 3/2mm full wetsuit.
What is the weather like in Aljezur in August?
Air temperature averages 23°C, with about 0.1 mm of rain per day and average winds of 18 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 37.5°N 9.0°W), retrieved 22 Oct 2026.