September Weather in Cozumel

Last updated: March 2, 2024

The weather in Cozumel, Mexico, during September is characterized by an average temperature of 28°C (83°F). Highs can soar to 30°C (86°F), while lows may dip to 26°C (79°F). Typically, the humidity level in Cozumel throughout September hovers around 76%.

26°C (79°F)

Minimum temperature

28°C (83°F)

Average temperature

30°C (86°F)

Maximum temperature

76%

Humidity

Precipitation and Sunshine hours

In September, Cozumel averages 137 mm (5.4 inches) of rainfall, typically over the course of 21 rainy days. The month enjoys an average of 12 hours 13 minutes of daylight, with the sun shining for approximately 10 hours 18 minutes each day. Additionally, there is a 34% probability of sunny days during this period.

137 mm (5.4 inches)

Precipitation

21 rainy days

Rainy days

10 hours 18 minutes

Sunshine hours

34%

Chance of sun

UV Index

In September, the UV Index in Cozumel reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 7 10 12 12 11 8 5 2 1 0
Exposure Low Moderate High VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 30 min 45 min

Compare Cozumel's Climate with Cities Worldwide