Gulf of Mexico water temperature

Gulf of Mexico, SPI Brazos Santiago, TX · Sea/Coast

The current water temperature at Gulf of Mexico is 29.3 °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.

29.3 °C

Measured: September 20, 2026 · continuously updated

💧 Water 29.3° · ☀️ Air 26.9° · high today 31.5°

Temperature trend of recent weeks

Gulf of Mexico — Photo: James Dillard · Public domain · Wikimedia Commons

Water quality

Official EPA rating: excellent

Measurement series & statistics

This measurement series includes 154 data points since August 21, 2026.

Lowest recorded value: 25.0 °C on August 23, 2026 · highest value: 30.0 °C on September 19, 2026.

In September, temperatures have ranged between 25.7 °C and 30.0 °C.

The current value is 1.7 °C above the September average of this series.

Nearby waters

Gulf of Mexico, SPI Brazos Santiago · 0.1 km away29.2 °C Gulf of Mexico, Isla Blanca Beach · 0.6 km away29.2 °C Gulf of Mexico, South Padre Island CGS, TX · 1.3 km away29.3 °C Gulf of Mexico, South Padre Island CG Station · 1.4 km away29.1 °C Gulf of Mexico, South Padre Island · 4.2 km away29.3 °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 29.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Gulf of Mexico?
Currently 29.3 °C (updated continuously).

How warm is at Gulf of Mexico in September?
In September, the water temperature recently averaged 27.6 °C.

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

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