Isla Mujeres, off Mexico’s Caribbean coast, enjoys a tropical climate with warm temperatures and high humidity year-round. Summers are hot, wet, and often overcast, while winters are warm, breezy, and mostly clear. The island’s steady warmth, abundant sunshine, and inviting sea make it an ideal destination for beach lovers and outdoor adventurers in any season.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Isla Mujeres features a tropical savanna climate, marked by small temperature variations and distinct wet and dry seasons. Average daytime highs range from 27°C in January to 32–33°C in July and August, while nighttime lows stay mild, rarely dropping below 18°C. The sea remains warm all year, with temperatures from 26°C in winter to 29°C in late summer, ensuring swimming is always comfortable.
The dry season runs from November to April, bringing mostly sunny skies, lower humidity, and minimal rainfall. March and April are the driest months, with as little as 11–34 mm of rain and frequent sunny days. The wet season, from May to October, sees higher humidity, more cloud cover, and frequent but usually brief, heavy downpours – especially in June, September, and October, when monthly rainfall can exceed 160–210 mm. Despite the rain, showers are typically short-lived, and sunshine quickly returns. Winds are moderate to strong, especially in winter, providing a refreshing breeze. Isla Mujeres enjoys 8–11 hours of sunshine per day, with the longest daylight in June and July. The island is occasionally affected by tropical storms or hurricanes from June to November, but direct hits are rare.
| Average climate data for Isla Mujeres, Mexico | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 26 | 27 | 27 | 29 | 30 | 30 | 31 | 31 | 30 | 29 | 28 | 27 | 31 |
| Average minimum temperature (°C) | 22 | 23 | 23 | 24 | 26 | 27 | 27 | 27 | 27 | 26 | 24 | 24 | 22 |
| Average precipitation (mm) | 51 | 28 | 19 | 30 | 63 | 89 | 57 | 83 | 91 | 117 | 65 | 50 | 741 |
| Average rainfall days (days) | 18 | 13 | 13 | 11 | 17 | 20 | 20 | 23 | 22 | 24 | 19 | 19 | 219 |
| Average relative humidity (%) | 76 | 75 | 74 | 76 | 75 | 77 | 75 | 75 | 76 | 77 | 76 | 76 | 76 |
| Average wind speed (km/h) | 18 | 18 | 19 | 19 | 17 | 16 | 13 | 13 | 13 | 15 | 17 | 17 | 16 |
| Average water temperature (°C) | 26 | 26 | 26 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 28 |
| Average daily daylight hours (h) | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 12 |
| Average daily sunshine hours (h) | 7 | 8 | 8 | 9 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 8 |
| Average cloud coverage (%) | 39 | 30 | 30 | 27 | 27 | 33 | 24 | 24 | 30 | 35 | 36 | 36 | 31 |
| Average UV index | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 |
The best time to visit Isla Mujeres is from December to April, during the dry season. These months offer the most settled weather, abundant sunshine, and comfortable humidity, making them perfect for beach activities, snorkelling, and exploring the island. The sea is warm, and rainfall is minimal, ensuring outdoor plans are rarely disrupted.
The least favourable time to visit Isla Mujeres is from September to October, when rainfall and humidity peak and the risk of tropical storms or hurricanes is highest. While the island is lush and less crowded, heavy downpours can disrupt outdoor activities, and some tours may be cancelled due to weather.
Isla Mujeres has a tropical climate with warm temperatures and high humidity all year. Summers are hot, wet, and overcast, while winters are warm, breezy, and mostly clear. The sea is always warm for swimming.
The best time to visit is from December to April, during the dry season. These months offer sunny weather, comfortable humidity, and minimal rainfall, perfect for beach activities and exploring the island.
Rain falls year-round but is heaviest from June to October, especially in September and October. Showers are usually brief and intense, often followed by sunshine. March and April are the driest months.
Summer highs in Isla Mujeres typically reach 32–33°C, with high humidity making it feel hotter. Nights remain warm, and the sea temperature can reach 29°C, ideal for swimming and water sports.
Isla Mujeres can be affected by tropical storms and hurricanes, mainly from June to November. Direct hits are rare, but it’s wise to monitor forecasts and consider travel insurance during hurricane season.
Pack light, breathable clothing, swimwear, sun protection, and a hat. Bring a light jumper for cooler evenings in winter and a rain jacket for wet season showers. Stay hydrated and use high SPF sun cream year-round.
Yes, the sea around Isla Mujeres stays warm year-round, with temperatures from 26°C in winter to 29°C in summer. Swimming, snorkelling, and water sports are possible in every season.
The warmest month, with the highest average maximum temperature, is August (31.1 °C). The month with the lowest average maximum temperature is January (25.8 °C). Overall, the average maximum temperature over the whole year is 28.7 °C.
The month with the highest average minimum temperature is August (27.2 °C). The coldest month, with the lowest average minimum temperature, is January (22.2 °C). Overall, the average minimum temperature over the whole year is 24.9 °C.
The month with the highest average water temperature is October (29 °C). The month with the lowest average water temperature is February (25.9 °C). Overall, the average water temperature over the whole year is 27.7 °C.
The wettest month, with the highest amount of precipitation, is October (116.6 mm). The driest month, with the least amount of precipitation, is March (19 mm). Over the whole year there are 741.1 mm of rainfall on average.
The month with the most days of rain is October (23.7 days). The month with the fewest days of rain is April (11.2 days). Over the whole year there are 219.3 days of rain on average.
The month with the highest average relative humidity is June (77.4 %). The month with the lowest average relative humidity is March (73.6 %). The overall average relative humidity over the whole year is 75.7 %.
The windiest month, with the highest average wind speed, is March (19 km/h). The calmest month, with the lowest average wind speed, is September (13.4 km/h). The overall average wind speed over the whole year is 16.4 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is January (38.9 %). The month with the clearest skies, so the lowest cloud coverage, is July (23.9 %). Over the whole year there is an average cloud coverage of 30.8 %.
The months with the longest days, so the most daylight, are June and July (Average daylight: 13 h). The month with the shortest days, so the least daylight, is December (Average daylight: 10.1 h). Over the whole year there are 11.8 h of daylight per day on average.
The month with the most sunshine per day is September (Average sunshine: 9.1 h). The month with the least sunshine per day is January (Average sunshine: 7.2 h). Over the whole year there are 8.3 h of sunlight per day on average.
The months with the highest average UV index are March, April, May, June, July, August, September and October (UV index: 7). The months with the lowest average UV index are January, February, November and December (UV index: 6). Over the whole year the average UV index is 6.7.
