What is the sea temperature near San Francisco today?

Today the warmest live sea temperature near San Francisco is —. Other beaches in the list are sorted from warmest to coolest.

How fresh is this data?

Open-Meteo Marine updates each grid cell hourly. Our snapshot refreshes on the same hourly cadence.

Where does the data come from?

Open-Meteo Marine — a free, no-key public marine forecast API based on national models (DWD, NOAA, MetOffice).

SwimTemperature

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Water temperature near San Francisco today

Today's live sea temperatures at the 24 closest beaches to San Francisco. Numbers update hourly and the ranking re-sorts by warmest swim right now.

Warmest beaches near San Francisco right now

About this list

We compute great-circle distance from San Francisco to every beach we track, take the closest, then poll Open-Meteo Marine for live sea-surface temperature, wave height and wind speed. If a grid cell does not return data we leave it blank — never a seasonal estimate.

Quick answers

What is the sea temperature near San Francisco today?: Today the warmest live sea temperature near San Francisco is —. Other beaches in the list are sorted from warmest to coolest.
How fresh is this data?: Open-Meteo Marine updates each grid cell hourly. Our snapshot refreshes on the same hourly cadence.
Where does the data come from?: Open-Meteo Marine — a free, no-key public marine forecast API based on national models (DWD, NOAA, MetOffice).

Compare beaches near San Francisco

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August averages near San Francisco

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Sea temperatures near other cities

Los Angeles · 559 km