Isla Mujeres weather in January
Mexico

January in Isla Mujeres: hot, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Isla Mujeres · #257 of 1383 destinations to visit in January · comfort 87/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Isla Mujeres in January
Other months in Isla Mujeres
Isla Mujeres's forum calls March the best time of year weather-wise — sunny and hot with pleasant nights, though rainfall stays low rather than absent. Regulars flag March as typically the windiest month locally, and note a passing cold front can still knock a few degrees off the temperature, so a light wrap for the evening is worth having.
Add your own note from Isla Mujeres's card on the map.
Isla Mujeres climate normals — January
| Daytime high | 27°C / 80°F | 🥵 hot |
|---|---|---|
| Nighttime low | 20°C / 68°F | |
| Feels like (high) | 29°C / 84°F | |
| Sea temperature | 27°C / 80°F | 😎 warm sea |
| Rainfall | 53 mm / 2.1 in | 🌦 some rain |
| Rainy days | 12 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 9.1 h/day | |
| Daylight | 11 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Isla Mujeres in January
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyDay-tripper season, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Isla Mujeres's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherIsla Mujeres's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Isla Mujeres in January
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Day-tripper season
15 Dec – 15 AprCruise seasonCrowdedThe island belongs to Cancun day boats between about ten and four in high season: Playa Norte fills in waves off the ferry, then empties by five and the centre goes back to the people who live there.
Nearby, and something's on
Within 300 km of Isla Mujeres — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Isla Mujeres?
Isla Mujeres in January — FAQ
- Is January a good time to visit Isla Mujeres?
- January in Isla Mujeres: hot, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Isla Mujeres on SeasonMap's comfort score (87/100).
- What is the weather like in Isla Mujeres in January?
- In January, Isla Mujeres averages a daily high of 26.9°C and a low of 20.1°C, with about 52.6 mm of rain over roughly 11.5 rainy days.
- What is the air quality in Isla Mujeres in January?
- Isla Mujeres has a mean US Air Quality Index of about 44 in January.
Other months in Isla Mujeres
Compare Isla Mujeres in January
Warmer or cooler than Isla Mujeres in January
Similar destinations in North America — January
Within 300 km: Valladolid's Feria de la Candelaria around 27 Jan – 8 Feb, and Playa del Carmen's Dry season around 15 Nov – 30 Apr.