Offshore Stays

Surf Tamarindo in May

Surfing Tamarindo in May: in the main surf season, air around 29°C, sea around 29°C, 7.2 mm of rain a day on average. Wetsuit: boardshorts or a rash vest.

Surf season

In season

Air temperature

29°C

Sea temperature

29°C

Rain

7.2 mm/day

Wind

11 km/h avg

Average wave height

1.4 m (5 ft)

Big days (top 10%)

1.7 m (6 ft)+

Swell period

14 s

Main swell direction

From SSW (203°)

What to wear: with the sea around 29°C in May, expect boardshorts or a rash vest.

Surf size in Tamarindo in May

Offshore of Tamarindo, waves in May average 1.4 m (5 ft), above the year-round average of 1.3 m — the 5th biggest month of the year. One hour in ten is 1.7 m (6 ft) or bigger. The dominant swell runs at about 14 seconds from the SSW.

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.

May in the context of Tamarindo's surf season

Tamarindo's main surf season runs May–November. May is inside it.

Full Tamarindo surf and remote-work guide →

Frequently asked questions

Is May a good month to surf Tamarindo?
Yes — May falls in Tamarindo's main surf season (May–November).
How warm is the sea in Tamarindo in May?
About 29°C on average, which calls for boardshorts or a rash vest.
What is the weather like in Tamarindo in May?
Air temperature averages 29°C, with about 7.2 mm of rain per day and average winds of 11 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 10.5°N 86.0°W), retrieved 22 Oct 2026.