Cancún average May sea temperature: Max: 28.3°C / 82.1°F, Avg: 27.3°C / 81.1°F, Min: 26.4°C / 80.2°F.

The warmest water temperature is in August with an average around 84.7°F / 29.3°C.

Is it warm enough to swim in Cancun in May? Average water temperature in Cancun in May is 82.6°F and therefore suitable for comfortable swimming.

In may, swimming is ideal on the beaches around Cancun! With water reaching 84°F at most and 82°F on average, spending time in the water is very pleasant.

Minimum water temperature in Cancun in May is 78°F, maximum - 86°F. In recent years, at the beginning of the month, the temperature value here is at around 81°F ...

The answer is on this page, with the sea water temperature by month in Cancun, based on the average temperatures recorded in previous years.

On average, August has the warmest water temperature with 29°C. On average, March has the coldest water temperature with 26°C.

The average sea water temperature in May of 2024 was 83.2°F. The highest and lowest sea temperatures during the month were 84.4°F and 81.3°F.

The water temperature is likely to remain similar to May throughout the rest of spring and into early summer, hovering at an average of about 29 degrees Celsius ...