Elkhorn Slough water temperature
Elkhorn Slough, South Marsh · Sea/Coast
The current water temperature at Elkhorn Slough is 20.2 °C (as of September 20, 2026, source: NOAA NERRS SWMP).
The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.
Measurement series & statistics
This measurement series includes 69 data points since September 1, 2026.
Lowest recorded value: 16.8 °C on September 7, 2026 · highest value: 22.7 °C on September 9, 2026.
In September, temperatures have ranged between 16.8 °C and 22.7 °C.
The current value is 0.3 °C below the September average of this series.
Nearby waters
More measuring points: Elkhorn Slough
Frequently asked questions
Can you swim at Elkhorn Slough right now?
The current water temperature is 20.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Elkhorn Slough?
Currently 20.2 °C (updated continuously).
How warm is at Elkhorn Slough in September?
In September, the water temperature recently averaged 20.5 °C.
