The highest day temperature in January 2026 was 87°F. The lowest night temperature was 66°F. The average values for day and night temperatures during January were 81.5°F и 74.7°F respectivly.

The average sea surface temperature in January 2026 for Isla Mujeres was 83.5°F. The maximum and minimum values were 82.0°F and 84.4°F respectively.

Most of the days in January are gloomy but you can also expect sunny days.

Precipitation total in January for Isla Mujeres is 0.6 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 9.9 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Isla Mujeres in January is 4.6 hours.