Sf Bay A San Mateo Bridge near Foster City, California · Sea/Coast
The current water temperature at Sf Bay A San Mateo Bridge near Foster City is 21.2 °C (as of July 17, 2026, source: USGS).
Can you swim at Sf Bay A San Mateo Bridge near Foster City right now?
The current water temperature is 21.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Sf Bay A San Mateo Bridge near Foster City?
Currently 21.2 °C (updated continuously).
How warm is at Sf Bay A San Mateo Bridge near Foster City in July?
In July, the water temperature recently averaged 20.8 °C.