Mission Aransas, Aransas Bay · Sea/Coast
The current water temperature at Mission Aransas is 31.0 °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.
This measurement series includes 64 data points since September 1, 2026.
Lowest recorded value: 30.1 °C on September 2, 2026 · highest value: 31.9 °C on September 1, 2026.
In September, temperatures have ranged between 30.1 °C and 31.9 °C.
The current value is 0.1 °C above the September average of this series.
Can you swim at Mission Aransas right now?
The current water temperature is 31.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Mission Aransas?
Currently 31.0 °C (updated continuously).
How warm is at Mission Aransas in September?
In September, the water temperature recently averaged 30.9 °C.