South San Francisco Bay at Dumbarton Bridge, California · Sea/Coast
The current water temperature at South San Francisco Bay at Dumbarton Bridge is 21.7 °C (as of July 17, 2026, source: USGS).
Can you swim at South San Francisco Bay at Dumbarton Bridge right now?
The current water temperature is 21.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at South San Francisco Bay at Dumbarton Bridge?
Currently 21.7 °C (updated continuously).
How warm is at South San Francisco Bay at Dumbarton Bridge in July?
In July, the water temperature recently averaged 21.2 °C.