Average monthly water temperature in Cancún, Mexico
On this page you find the mean water temperature over the year in Cancún (Quintana Roo), Mexico. Discover the unique water temperature patterns, from its warmest to its coolest months.
Cancún offers consistently warm water temperatures year-round. The warmest month, June, averages 29°C (84°F).
Even in the coolest water temperature month, January, the average temperature is 26°C (79°F). These conditions are perfect for water activities and relaxation throughout the year.
Cancún Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cancún - and find the best time to visit.
Cancún 3-Day Forecast
Temperature Rainfall Sunshine Water Temp
See the full Cancún climate overview or explore weather in Mexico.
Popular this month
Where to go in August - average daytime high across popular destinations.
Puerto Peñasco
35°C (95°F) Los Cabos34°C (93°F) Playa del Carmen
31°C (88°F) Tulum31°C (88°F) Cancún
31°C (88°F) Puerto Vallarta
30°C (86°F) San Miguel de Allende28°C (82°F) Mexico City23°C (73°F) 
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