Cozumel Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Cozumel, Quintana Roo, Mexico. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's explore all the details to give you a full picture.
Cozumel experiences significant rainfall throughout the year, averaging 1268 mm (50 in) of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct dry season during certain months. You can clearly see this in our monthly precipitation graphs below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Cozumel shows significant variation throughout the year. Expect 225 mm (8.9 in) of precipitation during the wettest month October, distributed over 14 rainy days.
In contrast, March offers drier and sunnier days, with around 33 mm (1.3 in) of rainfall over 4 rainy days.
October, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 235 hours of sunshine in this period. During the driest month March you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Cozumel Temperature page.
Explore Cozumel's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Cozumel spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Mexico: City Comparison
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.
heavy rainfall
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moderate
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Cozumel vs World: Rainfall Compared
Cozumel's average annual precipitation is 1268 mm (50 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Cozumel's weather, including sunshine hours, humidity levels, and temperature data, visit our Cozumel Climate page.
