Joice Island Lower near Cordelia, California water temperature

Joice Island Lower near Cordelia, California · Sea/Coast

The current water temperature at Joice Island Lower near Cordelia is 20.4 °C (as of September 4, 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.

20.4 °C

Measured: September 4, 2026 · continuously updated

💧 Water 20.4° · ☀️ Air 17.4° · high today 26.5°

Temperature trend of recent weeks

Nearby waters

San Francisco Bay, Second Mallard · 7.0 km away20.2 °C First Mallard Branch near Fairfield, California · 7.1 km away20.5 °C San Francisco Bay, First Mallard · 7.1 km away20.8 °C Pacific, Port Chicago · 9.0 km away20.3 °C Pacific, Port Chicago, CA · 9.1 km away20.3 °C

Frequently asked questions

Can you swim at Joice Island Lower near Cordelia right now?
The current water temperature is 20.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Joice Island Lower near Cordelia?
Currently 20.4 °C (updated continuously).

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