September is a popular month to ask about Punta Sur Cozumel because conditions can shift week to week along this coast. Expect the water near 29.0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Caribbean Sea.
Punta Sur Cozumel sea temperature in September — averages 29.0°C
The sea at Punta Sur Cozumel in Mexico averages 29.0°C during September, based on long-run climatology for the Caribbean Sea. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · September
29.0°C
tropical · Excellent
Live water now
…
Recommended wetsuit
No wetsuit
At 29.0°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Monthly comparison
Yes — ideal swimming weather · Punta Sur Cozumel
Can you swim at Punta Sur Cozumel in June? — 28.0°C water28.0°CCan you swim at Punta Sur Cozumel in July? — 29.0°C water29.0°CCan you swim at Punta Sur Cozumel in August? — 29.0°C water29.0°CCan you swim at Punta Sur Cozumel in September? — 29.0°C water29.0°CCan you swim at Punta Sur Cozumel in October? — 28.0°C water28.0°CCan you swim at Punta Sur Cozumel in November? — 27.0°C water27.0°C
Frequently asked questions
What is the average sea temperature at Punta Sur Cozumel in September?
Punta Sur Cozumel averages 29.0°C in September, based on long-run climatology for the Caribbean Sea.
Is the sea warm enough to swim at Punta Sur Cozumel in September?
Yes, most swimmers find 29.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Punta Sur Cozumel in September?
No wetsuit needed.