The kind of weather you’re going to encounter when you are in Cozumel is a topic that’s almost in everyone’s mind. I prepared a chart that tells you the average temperatures (°F) and precipitation levels (in) per month of the year. Also, I will touch several subjects related to Cozumel’s weather in this article.
Cozumel’s Average High / Low Temperatures and Precipitation:
| Average High (°F) | Average Low (°F) | Average Precipitation (in) | |
| January | 82.0 | 68.0 | 3.2 |
| February | 84.0 | 68.0 | 4.8 |
| March | 85.0 | 68.0 | 2.0 |
| April | 87.0 | 72.0 | 6.8 |
| May | 86.0 | 73.0 | 8.2 |
| June | 87.0 | 74.0 | 14.9 |
| July | 87.0 | 74.0 | 5.7 |
| August | 89.0 | 74.0 | 4.8 |
| September | 87.0 | 74.0 | 14.2 |
| October | 86.0 | 73.0 | 3.7 |
| November | 83.0 | 71.0 | 3.5 |
| December | 82.0 | 68.0 | 2.5 |
Source: Weather.com
The average year-round air temperature in Cozumel is 78.4 °F, the highest average temperatures are reached in August (89 °F) and the lowest from December to March (68 °F).
Cozumel Weather in January
- Average High: 82.0 °F
- Average Low: 68.0 °F
- Overall Average: 75 °F
- Average Precipitation: 3.2 inches.
The weather conditions in Cozumel in January are really very pleasant. It’s the coolest month of the year in Cozumel. If you don’t like extreme heat, you will find January to be a great time of the year to be in Cozumel. It’s no wonder Cozumel’s peak season is from December to April, and the weather has a big part to do with this.
Cozumel Weather in February
- Average High: 84.0 °F
- Average Low: 68.0 °F
- Overall Average: 76.0 °F
- Average Precipitation: 4.8 inches
February is very similar to January weather-wise in Cozumel. People from all over the world visit Cozumel in February because of the weather and because it’s Carnival time in Cozumel.
Cozumel Weather in March
- Average High: 85.0 °F
- Average Low: 68.0 °F
- Overall Average: 76.5 °F
- Average Precipitation: 2.0 inches
March is one of the dryest months in Cozumel, almost no possibility of rain. The temperature rises slightly compared to February, but it’s almost not noticeable. March is definitely a great month to visit, also, it’s a month in which you might find great hotel deals!
Cozumel Weather in April
- Average High: 87.0 °F
- Average Low: 72.0 °F
- Overall Average: 79.5 °F
- Average Precipitation: 6.8 inches
April is another a great time to visit Cozumel weather-wise! April is when the temperature starts to rise (although it’s not too extreme). You can definitely enjoy Cozumel in April. You might get a little rain, but rain season per se starts in May and ends at around November.
Cozumel Weather in May
- Average High: 86.0 °F
- Average Low: 73.0 °F
- Overall Average: 79.5 °F
- Average Precipitation: 8.2 inches
The rainy season starts in May in Cozumel, although it’s not extreme. You might not even get a rainy day for a week. If it rains, it would be a quick afternoon shower (this rises temperatures). You will still enjoy outdoor activities even with these mild rains.
Cozumel Weather in June
- Average High: 87.0 °F
- Average Low: 74.0 °F
- Overall Average: 80.5 °F
- Average Precipitation: 14.9 inches
June is a rainy month in Cozumel and the beginning of Hurricane season. This being said, very few hurricanes have directly hit Cozumel, the last one was Hurricane Wilma in 2005. Rain in Cozumel is rarely a nuisance and the raining periods don’t last long.
Cozumel Weather in July
- Average High: 87.0 °F
- Average Low: 74.0 °F
- Overall Average: 80.5 °F
- Average Precipitation: 5.7 inches
July is when the heat starts to rise in Cozumel, although the most extreme high temperatures are reached in August. You will be amazed by the Caribbean Sea’s water temperature! July is part of Hurricane season in Cozumel, so it’s a good idea to monitor hurricane warnings.
Cozumel Weather in August
- Average High: 89.0 °F
- Average Low: 74.0 °F
- Overall Average: 81.5 °F
- Average Precipitation: 4.8 inches
August is when the temperature in Cozumel is at its highest during the year. The average high is 89 °F, and the thermal sensation is even higher. It’s definitely a time to be poolside.
Outdoor activities are normally scheduled very early in the morning, in order to avoid the mid-day highs.
August is part of Hurricane season in Cozumel, so it’s a good idea to monitor hurricane warnings.
Cozumel Weather in September
- Average High: 87.0 °F
- Average Low: 74.0 °F
- Overall Average: 80.5 °F
- Average Precipitation: 14.2 inches
In September the temperature in Cozumel starts to decline, although it’s not yet noticeable. It rains constantly. September is the wettest month in Cozumel due to rain. Storms last around an hour and are usually in the afternoons. September is also part of hurricane season, so it’s advisable to monitor hurricane warnings.
Cozumel Weather in October
- Average High: 86.0 °F
- Average Low: 73.0 °F
- Overall Average: 79.5 °F
- Average Precipitation: 3.7 inches
The October weather conditions in Cozumel are very similar to September, although the rains and the temperature decrease a bit. October is part of the hurricane season, it’s advisable to be aware of hurricane warnings.
Cozumel Weather in November
- Average High: 83.0 °F
- Average Low: 71.0 °F
- Overall Average: 77 °F
- Average Precipitation: 3.5 inches
The weather in November in Cozumel is noticeably better than the two previous months! The average high temperature in Cozumel in November is 83 °F. It’s also when hurricane season ends. It’s not as hot and the humidity is also lower. Practicing outdoor activities in November in Cozumel is very pleasurable.
The international Ironman Cozumel competition takes place in November, due to Cozumel’s great weather conditions that month.
Due to demand, hotel prices in Cozumel start rising in November.
Cozumel Weather in December
- Average High: 82.0 °F
- Average Low: 68.0 °F
- Overall Average: 75 °F
- Average Precipitation: 2.5 inches
December is arguably the best time of the year to be in Cozumel weather-wise. People from all over the world where it’s cold, fly to Cozumel to enjoy warm weather and the beauty of this island in the Caribbean Sea.
The average high temperature in December in Cozumel is 82 °F, and it almost never rains.
It is also the beginning of peak season in Cozumel, so as temperatures fall, hotel rates increase.
Hurricane Season in Cozumel
Hurricane season in Cozumel is from June to November. Many believe that Cozumel gets hit by hurricanes every year. This is not the case, the last hurricane to hit and really affect Cozumel island was Hurricane Wilma, back in 2005.
Mexcian authorities in Cozumel are very well prepared to attend the population on the island at the time, in case of a natural event such as a hurricane. They have world-class training and equipment for these eventualities.
Nowadays, hurricanes are events that can be predicted and monitored with a great amount of precision. You can check for hurricane warnings and the monitoring of Cozumel on the National Hurricane Center‘s website.
Caribbean Sea’s Average Temperature around Cozumel
The average year-round temperature of the Caribbean Sea around Cozumel’s beaches is 80.6 °F.
Weather Monitoring Resources for Cozumel
- Sea Temperature
- Hurricanes (National Hurricane Center)
- Tide Forecast
- Sunset, Sunrise, Moonrise, and Moonset
- Wind Speed and Direction
Cozumel’s 7 Day Weather Forecast:
In Conclusion.
Cozumel is a very pleasant place to be weather-wise almost year-round. The weather conditions are fairly constant throughout the year. It’s, as you would normally expect from an island in the Caribbean, a place of warm weather and high humidity that’s absolutely worth visiting.
The only thing really that you have to be aware of weather-wise when visiting Cozumel are hurricanes (that normally aren’t a factor in Cozumel), so it’s a good idea to check for this eventuality before going there.
Also, it’s a good idea to protect yourself from this kind of weather with:
- Sunscreen (preferably biodegradable)
- Bug repellent.
- A sun hat or at least a baseball cap.
- Drinking lots of bottled water (tap water, although chlorinated, is no good in Cozumel) to prevent dehydration.
- Wearing comfortable clothes and shoes.
- Sunglasses.
I hope this article has been useful to you and I wish that you have a great Cozumel day!