Offshore Stays

Surf Nazaré in August

Surfing Nazaré in August: outside the main surf season, air around 20°C, sea around 18°C, 0.3 mm of rain a day on average. Wetsuit: a 3/2mm full wetsuit.

Surf season

Off-season

Air temperature

20°C

Sea temperature

18°C

Rain

0.3 mm/day

Wind

17 km/h avg

Average wave height

1.5 m (5 ft)

Big days (top 10%)

2.2 m (7 ft)+

Swell period

9 s

Main swell direction

From NNW (338°)

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

Surf size in Nazaré in August

Offshore of Nazaré, waves in August average 1.5 m (5 ft), below the year-round average of 2.1 m — the smallest month of the year. One hour in ten is 2.2 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 Nazaré's surf season

Nazaré's main surf season runs September–February. August is outside it.

Full Nazaré surf and remote-work guide →

Other surf towns in season in August

Compare every surf town in season in August →

Frequently asked questions

Is August a good month to surf Nazaré?
August is outside Nazaré's main surf season (September–February), so surf is less reliable, though it can still work on the right day.
How warm is the sea in Nazaré in August?
About 18°C on average, which calls for a 3/2mm full wetsuit.
What is the weather like in Nazaré in August?
Air temperature averages 20°C, with about 0.3 mm of rain per day and average winds of 17 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 39.5°N 9.5°W), retrieved 22 Oct 2026.