Mississippi Sound water temperature
Mississippi Sound, Usgs Round Island Light, Mississippi · Sea/Coast
The current water temperature at Mississippi Sound is 30.0 °C (as of September 21, 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.
Measurement series & statistics
This measurement series includes 101 data points since August 26, 2026.
Lowest recorded value: 29.0 °C on August 28, 2026 · highest value: 32.6 °C on September 7, 2026.
In September, temperatures have ranged between 30.0 °C and 32.6 °C.
The current value is 0.9 °C below the September average of this series.
Nearby waters
More measuring points: Mississippi Sound
Frequently asked questions
Can you swim at Mississippi Sound right now?
The current water temperature is 30.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Mississippi Sound?
Currently 30.0 °C (updated continuously).
How warm is at Mississippi Sound in September?
In September, the water temperature recently averaged 30.9 °C.
