Offshore Stays

Surf Aljezur in January

Surfing Aljezur in January: outside the main surf season, air around 11°C, sea around 16°C, 1.6 mm of rain a day on average. Wetsuit: a 4/3mm full wetsuit.

Surf season

Off-season

Air temperature

11°C

Sea temperature

16°C

Rain

1.6 mm/day

Wind

17 km/h avg

Average wave height

2.3 m (8 ft)

Big days (top 10%)

3.6 m (12 ft)+

Swell period

13 s

Main swell direction

From NW (315°)

What to wear: with the sea around 16°C in January, expect a 4/3mm full wetsuit.

Surf size in Aljezur in January

Offshore of Aljezur, waves in January average 2.3 m (8 ft), above the year-round average of 1.9 m — the 4th biggest month of the year. One hour in ten is 3.6 m (12 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.

January in the context of Aljezur's surf season

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

Full Aljezur surf and remote-work guide →

Frequently asked questions

Is January a good month to surf Aljezur?
January 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 January?
About 16°C on average, which calls for a 4/3mm full wetsuit.
What is the weather like in Aljezur in January?
Air temperature averages 11°C, with about 1.6 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 37.5°N 9.0°W), retrieved 22 Oct 2026.