Cozumel Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Cozumel. The numbers are calculated over a 30-year period to provide a reliable average. Let's now guide you through the details for a complete overview.

Cozumel has a relatively rainy climate with high precipitation levels, averaging 1268 mm of rainfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Cozumel can be quite wet during October, receiving approximately 225 mm of precipitation over 14 rainy days.

In contrast March, experiences much drier conditions, with 33 mm of rainfall, spread across 4 rainy days.

October, the wettest month, has a maximum daytime temperature of 29°C. The city receives 235 hours of sunshine in this period. During the driest month March you can expect a temperature of 27°C. For more detailed insights into the city’s temperatures, visit our Cozumel Temperature page.

Annual Precipitation in Mexico

The map below shows the annual precipitation across Mexico. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Cozumel’s average annual precipitation is 1268 mm. Let’s compare this to some popular worldwide tourist destinations:

Athens, Greece, receives an average annual precipitation of 400 mm, making it one of the drier Mediterranean climates with rainfall mostly in winter.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

In Brisbane, Australia, the annual precipitation is 979 mm, making it wetter than Sydney.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Cozumel:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

For more detailed information about Cozumel’s weather, including sunshine hours, humidity levels, and temperature data, visit our Cozumel Climate page.