Offshore Stays

Surf Sagres in September

Surfing Sagres in September: in the main surf season, air around 21°C, sea around 19°C, 0.8 mm of rain a day on average. Wetsuit: a 3/2mm full wetsuit.

Surf season

In season

Air temperature

21°C

Sea temperature

19°C

Rain

0.8 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

11 s

Main swell direction

From NW (315°)

What to wear: with the sea around 19°C in September, expect a 3/2mm full wetsuit.

Surf size in Sagres in September

Offshore of Sagres, waves in September average 1.5 m (5 ft), below the year-round average of 1.9 m — the 9th biggest month of the year. One hour in ten is 2.2 m (7 ft) or bigger. The dominant swell runs at about 11 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.

September in the context of Sagres's surf season

Sagres's main surf season runs April–May, September–November. September is inside it.

Full Sagres surf and remote-work guide →

Frequently asked questions

Is September a good month to surf Sagres?
Yes — September falls in Sagres's main surf season (April–May, September–November).
How warm is the sea in Sagres in September?
About 19°C on average, which calls for a 3/2mm full wetsuit.
What is the weather like in Sagres in September?
Air temperature averages 21°C, with about 0.8 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 37.0°N 9.0°W), retrieved 22 Oct 2026.