Gulf of Mexico water temperature

Gulf of Mexico, Rollover Pass, TX · Sea/Coast

The current water temperature at Gulf of Mexico is 29.7 °C (as of September 20, 2026, source: NOAA NDBC).

The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.

29.7 °C

Measured: September 20, 2026 · continuously updated

💧 Water 29.7° · ☀️ Air 29.3°

Temperature trend of recent weeks

Water quality

Official EPA rating: excellent

Measurement series & statistics

This measurement series includes 155 data points since August 21, 2026.

Lowest recorded value: 27.9 °C on September 1, 2026 · highest value: 33.3 °C on September 4, 2026.

In September, temperatures have ranged between 27.9 °C and 33.3 °C.

Nearby waters

Gulf of Mexico, Rollover Pass · 0.0 km away29.5 °C Gulf of Mexico, High Island · 14.8 km away30.7 °C Gulf of Mexico, High Island, TX · 14.9 km away30.9 °C Gulf of Mexico, Galveston Bay Entrance, North Jetty · 27.0 km away30.5 °C Gulf of Mexico, Galveston Bay Entrance (North Jetty), TX · 27.0 km away30.6 °C

More measuring points: Gulf of Mexico

Pilottown35.9 °C Port Mansfield35.9 °C Lake Charles Bulk Terminal, LA34.8 °C Bulk Terminal34.7 °C Baffin Bay, TX33.0 °C Baffin Bay32.7 °C

Frequently asked questions

Can you swim at Gulf of Mexico right now?
The current water temperature is 29.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Gulf of Mexico?
Currently 29.7 °C (updated continuously).

How warm is at Gulf of Mexico in September?
In September, the water temperature recently averaged 29.7 °C.

How is the water quality at Gulf of Mexico?
The official classification is: excellent.

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