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Gulf of Mexico water temperature

Gulf of Mexico, Holbox · Sea/Coast

The current water temperature at Gulf of Mexico is 28.7 °C (as of September 20, 2026, source: Open-Meteo marine model).

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

28.7 °C
Measured: September 20, 2026 · continuously updated
💧 Water 28.7° · ☀️ Air 24.9° · high today 28.9°
Temperature trend of recent weeks
Gulf of Mexico
Photo: dronepicr · CC BY 2.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 609 data points since July 22, 2026.

Lowest recorded value: 27.0 °C on August 15, 2026 · highest value: 29.5 °C on September 4, 2026.

In September, temperatures have ranged between 28.2 °C and 29.5 °C.

The current value is 0.1 °C below the September average of this series.

Nearby waters

More measuring points: Gulf of Mexico

Frequently asked questions

Can you swim at Gulf of Mexico right now?
The current water temperature is 28.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Gulf of Mexico?
Currently 28.7 °C (updated continuously).

How warm is at Gulf of Mexico in September?
In September, the water temperature recently averaged 28.8 °C.

When is the water warmest at Gulf of Mexico?
Across the measurement record, September is on average the warmest month (28.8 °C).

Open in the BrrChecker app

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