Climate Insights for Isla Mujeres

The climate in Isla Mujeres is hot. The average annual temperature is 27°C and approximately 1023mm of precipitation falls per year. June is the wettest month, receiving around 184mm of rainfall. Isla Mujeres is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are January, February, December, when temperatures can drop to 24°C.

Isla Mujeres has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.

Isla Mujeres is a moderately rainy area, receiving approximately 1023mm of precipitation annually, which averages out to around 85mm per month. The wettest month is June, averaging 184mm of rainfall. October and September also tend to see above-average precipitation. The driest month is March, with just 22mm. That's 162mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Isla Mujeres is moderately windy, with an average annual wind speed of 27km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 30km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in September, with average winds dropping to 22km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 8km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 29km/h in winter, 28km/h in spring, 24km/h in summer, 25km/h in autumn.

It is currently spring in Isla Mujeres, which began on March 20, 2026. Isla Mujeres is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 29°C, while the coldest stretch bottoms out in January near 24°C. Summer is next, beginning on June 21, 2026 — 86 days from now.

The best time to visit Isla Mujeres is during January and February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 46mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 29°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Isla Mujeres based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.