Offshore Stays

Surf Sagres in December

Surfing Sagres in December: outside the main surf season, air around 15°C, sea around 17°C, 2.5 mm of rain a day on average. Wetsuit: a 3/2mm full wetsuit.

Surf season

Off-season

Air temperature

15°C

Sea temperature

17°C

Rain

2.5 mm/day

Wind

22 km/h avg

Average wave height

2.3 m (7 ft)

Big days (top 10%)

3.5 m (11 ft)+

Swell period

13 s

Main swell direction

From NW (315°)

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

Surf size in Sagres in December

Offshore of Sagres, waves in December average 2.3 m (7 ft), above the year-round average of 1.9 m — the 3rd biggest month of the year. One hour in ten is 3.5 m (11 ft) or bigger. The dominant swell runs at about 13 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.

December in the context of Sagres's surf season

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

Full Sagres surf and remote-work guide →

Frequently asked questions

Is December a good month to surf Sagres?
December is outside Sagres's main surf season (April–May, September–November), so surf is less reliable, though it can still work on the right day.
How warm is the sea in Sagres in December?
About 17°C on average, which calls for a 3/2mm full wetsuit.
What is the weather like in Sagres in December?
Air temperature averages 15°C, with about 2.5 mm of rain per day and average winds of 22 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.