Surf Climatology
Best Time to Surf Grumari
Rio de Janeiro, Brazil
Grumari is a surf break in Rio de Janeiro, Brazil, and this page shows the time of year when it usually gets the most surf. The figures are three years of offshore wave data, 2022 to 2024, averaged month by month at the nearest offshore point. The peak surf season at Grumari is May & Aug, when the average offshore swell is at its biggest.
Peak surf season: May & Aug.
Based on the 3-year average offshore wave height, 2022–2024.
Best time to visit
3-year monthly avg · offshore significant wave height · 2022–2024
Peak surf season:MayAug
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
5ft
3ft
0ft
Peak monthsThis monthOff-peakTap a bar for details.
Jan: 3.8ft average swell at 7.3 s from the SSE.
Feb: 3.4ft average swell at 8 s from the SSE.
Mar: 4.0ft average swell at 7.7 s from the SSE.
Apr: 4.8ft average swell at 8.5 s from the SSE.
May: 5.2ft average swell at 8.5 s from the SSE.
Jun: 4.6ft average swell at 8.8 s from the S.
Jul: 4.8ft average swell at 8.9 s from the S.
Aug: 5.4ft average swell at 8.8 s from the SSE.
Sep: 5.0ft average swell at 7.8 s from the SE.
Oct: 4.4ft average swell at 8.1 s from the SSE.
Nov: 4.4ft average swell at 7.3 s from the SSE.
Dec: 4.1ft average swell at 7.7 s from the SSE.
Offshore significant wave height (Hs) from Open-Meteo ERA5 reanalysis, 2022–2024, at -23.0°, -43.5°.
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