Offshore Stays

Surf Imsouane in September

Surfing Imsouane in September: in the main surf season, air around 23°C, sea around 20°C, 0.3 mm of rain a day on average. Wetsuit: a 3/2mm full wetsuit.

Surf season

In season

Air temperature

23°C

Sea temperature

20°C

Rain

0.3 mm/day

Wind

19 km/h avg

Average wave height

1.7 m (5 ft)

Big days (top 10%)

2.4 m (8 ft)+

Swell period

10 s

Main swell direction

From NNW (338°)

What to wear: with the sea around 20°C in September, expect a 3/2mm full wetsuit.

Surf size in Imsouane in September

Offshore of Imsouane, waves in September average 1.7 m (5 ft), below the year-round average of 2.0 m — the smallest month of the year. One hour in ten is 2.4 m (8 ft) or bigger. The dominant swell runs at about 10 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.

September in the context of Imsouane's surf season

Imsouane's main surf season runs September–April. September is inside it.

Full Imsouane surf and remote-work guide →

Frequently asked questions

Is September a good month to surf Imsouane?
Yes — September falls in Imsouane's main surf season (September–April).
How warm is the sea in Imsouane in September?
About 20°C on average, which calls for a 3/2mm full wetsuit.
What is the weather like in Imsouane in September?
Air temperature averages 23°C, with about 0.3 mm of rain per day and average winds of 19 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 31.0°N 10.0°W), retrieved 22 Oct 2026.