Is today a good day for windsurfing in San Francisco?
Today is not the day.
Not a day for the board. Light breeze, Force 2, gusting Force 4, 11 °C. Out of season for it, whatever the weather does.
Not today29/100
7-day outlook for windsurfing in San Francisco
Best day looks like Today at 29/100.
Why this score?
Data from Open-Meteo, and Open-Meteo Marine for waves and sea temperature. Last updated 19:43 UTC.
Windsurfing in San Francisco, month by month
Winds average 22 km/h in June, the windiest month, and 12 km/h in November, the calmest. Offshore waves are biggest in January (the day's highest averages 1.8 m) and smallest in July (1.0 m). The sea is warmest in September at 16°C and coldest in March at 12°C. Daytime highs peak at 21°C in October and fall to 14°C in December.
Our seasonal guide puts windsurfing in season from April to October.
| Month | Average wind (km/h) | Offshore wave height (m) | Sea temperature (°C) | Daytime high (°C) |
|---|---|---|---|---|
| January | 13 | 1.8 | 12 | 14 |
| February | 14 | 1.8 | 12 | 15 |
| March | 16 | 1.6 | 12 | 14 |
| April (in season) | 18 | 1.5 | 13 | 16 |
| May (in season) | 21 | 1.4 | 13 | 18 |
| June (in season) | 22 | 1.3 | 14 | 19 |
| July (in season) | 22 | 1.0 | 15 | 19 |
| August (in season) | 20 | 1.0 | 16 | 20 |
| September (in season) | 17 | 1.1 | 16 | 21 |
| October (in season) | 14 | 1.2 | 16 | 21 |
| November | 12 | 1.4 | 13 | 16 |
| December | 13 | 1.7 | 12 | 14 |
In season, by our seasonal guide
Averages of daily weather 2020 to 2024 and of waves and sea temperature 2022 to 2024, from ERA5 reanalysis data (about 25 km resolution; waves are measured offshore, not in the surf at the beach). Not a forecast.
About windsurfing in San Francisco
Microclimates that change in five minutes, year-round wetsuit-only sea swimming, and Marin Headlands on the doorstep.
Go Daisy scores 47 activities for San Francisco, including running, cycling, urban exploring, photography, outdoor yoga. The score for windsurfing updates hourly from the same weather data professional services use.
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Score for windsurfing in San Francisco updated hourly. Free, ad-free. Built by independent makers in the UK and Asturias, Spain.
Weather data from Open-Meteo.