Cozumel weather in September
Hot and humid, with frequent heavy rain. Average highs of 30°C and lows of 26°C, with around 20 rainy days expected throughout the month.
While September isn't our top-rated month for Cozumel, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
30°C
Average low
26°C
Rainy days
20 days
Best months to visit
January, February, March, April, December
What to do in Cozumel in September
Whatever the weather, Cozumel rewards curious visitors. Here are some of the best ways to spend your time:
Wall diving at Santa Rosa and Paradise Reef sites
Snorkeling Chankanaab Marine Park reef
Mayan ruin exploration at San Gervasio
Fishing charters for grouper and barracuda
Beach club hopping on the town pier
Cenote diving in nearby underground lakes
What to pack for September
Light breathable clothing, high-SPF sunscreen, a wide-brimmed hat, and a reusable water bottle are essential. Pack sandals and at least one light layer for air-conditioned interiors.
Browse other months
Recommended
January
26C
Warm and pleasant, with some rainy days.
Recommended
February
27C
Warm and pleasant, with occasional showers.
Recommended
March
28C
Warm and pleasant, with some rainy days.
Recommended
April
29C
Warm and pleasant, with occasional showers.
May
30C
Hot and humid, with some rainy days.
June
30C
Hot and humid, with regular rainfall.
July
31C
Hot and humid, with some rainy days.
August
31C
Hot and humid, with regular rainfall.
September (you are here)
30C
Hot and humid, with frequent heavy rain.
October
29C
Warm and pleasant, with frequent heavy rain.
November
28C
Warm and pleasant, with regular rainfall.
Recommended
December
27C
Warm and pleasant, with some rainy days.
Book your September trip to Cozumel
Find hotels, tours and experiences for the perfect escape.
