Isla Mujeres weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: July, November – May
What is the weather like in Isla Mujeres in January?
In January, Isla Mujeres is warm: daytime highs average 25 °C, and even at night it stays warm at around 22 °C. The sea averages 26.6 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 50 mm in total. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Isla Mujeres.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 79 | 80 | 87 |
| Day | 26° | 25° | 26° |
| Night | 23° | 22° | 23° |
| Sea | 27° | 27° | 26° |
| Sun | 6 h | 5 h | 7 h |
| Rain days | 11 | 10 | 7 |
More details for January
- Daylight
- 10 h 58 min07:26 – 18:25
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 19 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 48 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−5America/Cancun
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %40 %
- Few rainy daysweight 20 %59 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in January
- Swimwear
- Sunscreen
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Isla Mujeres in January: quick answers
Is Isla Mujeres hot in January?
Warm rather than hot: in January, daytime highs in Isla Mujeres average 25 °C and nights cool to about 22 °C.
Can you swim in Isla Mujeres in January?
Yes. In January the sea averages 26.6 °C – lovely and warm for swimming.
Does it rain much in Isla Mujeres in January?
Rain is frequent, with about 10 rainy days and 50 mm in total.
Isla Mujeres month by month
The whole year in Isla MujeresAll destinations: MexicoCaribbean weather in JanuaryWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences