Is January a good month to surf Cascais?

January is outside Cascais's main surf season (March–April, September–November), so surf is less reliable, though it can still work on the right day.

How warm is the sea in Cascais in January?

About 15°C on average, which calls for a 4/3mm full wetsuit.

What is the weather like in Cascais in January?

Air temperature averages 13°C, with about 2.1 mm of rain per day and average winds of 21 km/h.

Surf Cascais in January

Surfing Cascais in January: outside the main surf season, air around 13°C, sea around 15°C, 2.1 mm of rain a day on average. Wetsuit: a 4/3mm full wetsuit.

Surf season

Off-season

Air temperature

13°C

Sea temperature

15°C

Rain

2.1 mm/day

Wind

21 km/h avg

Average wave height

2.3 m (8 ft)

Big days (top 10%)

3.5 m (12 ft)+

Swell period

13 s

Main swell direction

From WNW (293°)

What to wear: with the sea around 15°C in January, expect a 4/3mm full wetsuit.

Surf size in Cascais in January

Offshore of Cascais, 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 3.5 m (12 ft) or bigger. The dominant swell runs at about 13 seconds from the WNW.

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 Cascais's surf season

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

Full Cascais surf and remote-work guide →

Frequently asked questions

Is January a good month to surf Cascais?: January is outside Cascais's main surf season (March–April, September–November), so surf is less reliable, though it can still work on the right day.
How warm is the sea in Cascais in January?: About 15°C on average, which calls for a 4/3mm full wetsuit.
What is the weather like in Cascais in January?: Air temperature averages 13°C, with about 2.1 mm of rain per day and average winds of 21 km/h.