San Francisco Bay A Richmond-san Rafael Bridge, California water temperature

San Francisco Bay A Richmond-san Rafael Bridge, California · Sea/Coast

The current water temperature at San Francisco Bay A Richmond-san Rafael Bridge is 17.4 °C (as of September 1, 2026, source: USGS).

The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.

17.4 °C

Measured: September 1, 2026 · continuously updated

💧 Water 17.4° · ☀️ Air 18.3°

Temperature trend of recent weeks

San Francisco Bay A Richmond-san Rafael Bridge, California — Photo: etee · CC BY-SA 2.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 447 data points since July 8, 2026.

Lowest recorded value: 16.3 °C on July 14, 2026 · highest value: 20.7 °C on July 26, 2026.

Nearby waters

Pacific, Richmond, CA · 3.5 km away17.9 °C Pacific, Richmond · 4.1 km away17.9 °C Pacific, Tiburon Pier, San Francisco Bay, CA · 4.8 km away16.6 °C San Francisco Bay A Ne Shore Alcatraz Island, California · 12.2 km away16.7 °C San Francisco Bay A Pier 17 A San Francisco, California · 15.3 km away16.9 °C

Frequently asked questions

Can you swim at San Francisco Bay A Richmond-san Rafael Bridge right now?
The current water temperature is 17.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at San Francisco Bay A Richmond-san Rafael Bridge?
Currently 17.4 °C (updated continuously).

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