Mission Aransas water temperature
Mission Aransas, Copano Bay East · Sea/Coast
The current water temperature at Mission Aransas is 30.3 °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 77 data points since September 1, 2026.
Lowest recorded value: 28.9 °C on September 5, 2026 · highest value: 32.3 °C on September 7, 2026.
In September, temperatures have ranged between 28.9 °C and 32.3 °C.
The current value is 0.6 °C below the September average of this series.
Nearby waters
More measuring points: Mission Aransas
Frequently asked questions
Can you swim at Mission Aransas right now?
The current water temperature is 30.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Mission Aransas?
Currently 30.3 °C (updated continuously).
How warm is at Mission Aransas in September?
In September, the water temperature recently averaged 30.9 °C.
