See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:40
Sunrise
18:40
Sunset
Moon
Waxing Gibbous
14:56
Moonrise
01:02
Moonset
Daily Forecast
Today
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Air Quality Data Available
Upgrade to access real-time air quality data for Cozumel.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Cozumel.
View stargazing scoreWeather in Cozumel today, September 20, 2026
Rain features in Cozumel on September 20, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise.
The temperature range runs from about 26°C up to 28°C. Moisture in the air spans 76%-82%, with the highest values around 23:00. Expect gentle winds, highest near 16:00 at 2.1 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 86% around 14:00. Cloud also stays substantial, close to 58% near 19:00. Horizontal visibility holds close to 16.1 km. The sun rises at 06:40 and sets at 18:40, for a total of 12 hours 0 minutes of sunlight today.
Taken together, Cozumel looks wet enough on September 20, 2026 that flexible outdoor plans work best, with temperatures peaking near 28°C.
Frequently asked questions about weather in Cozumel
How warm does it get in Cozumel?
The warmest month in Cozumel is August, with average high temperatures of 29°C. The average temperature during this period is around 28°C.
How cold does it get in Cozumel?
The coldest month in Cozumel is January, with average low temperatures of 24°C. The average temperature during this period is around 25°C.
What is the wettest time of year in Cozumel?
The wettest month in Cozumel is June, with an average of 219mm of precipitation.
What is the driest time of year in Cozumel?
The driest month in Cozumel is March, with an average of 30mm of precipitation.
Explore more weather forecasts
- Playa del Carmen, Estado de Quintana Roo
- Mexico City, Ciudad de México
- Tulum, Estado de Quintana Roo
- Tijuana, Estado de Baja California
- Alfredo V. Bonfil, Estado de Quintana Roo
- Iztapalapa, Ciudad de México
- Cancún, Estado de Quintana Roo
- León de los Aldama, Estado de Guanajuato
- Isla Mujeres, Estado de Quintana Roo
- Puebla, Estado de Puebla
- Felipe Carrillo Puerto, Estado de Quintana Roo
- Ecatepec de Morelos, Estado de México
- José María Morelos, Estado de Quintana Roo
- Santiago de Querétaro, Estado de Querétaro
- Bacalar, Estado de Quintana Roo
- Ciudad Juárez, Estado de Chihuahua