Weather in Cozumel in September
Cozumel, Mexico averages a high of 29.3°C (84.7°F) and low of 26.5°C (79.7°F) in September, with 20 rain days and 10.5 hours of daily sunshine. Travel score: 67/100 (Good). The best time to visit Cozumel is April.
High
29°C85°F
Low
27°C80°F
🌧️
20
rain days
☀️
10.5
hrs/day sunshine
💧
81%
humidity
67— Good
September in Cozumel is hot and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Cozumel?
How much does it rain in Cozumel in September?
Cozumel receives an average of 163.3mm of rainfall across 20 rainy days in September. The annual total is 1114.4mm.
What should I pack for Cozumel in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°C
🧥
Waterproof jacket
Frequent rain expected (20 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Mexico in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31