The highest day temperature in January 2026 was 87°F. The lowest night temperature was 70°F. The average values for day and night temperatures during January were 82.3°F и 76.4°F respectivly.

The average sea surface temperature in January 2026 for Cozumel was 84.6°F. The maximum and minimum values were 83.6°F and 85.2°F respectively.

You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in January for Cozumel is 2.7 in.

The average wind speed in January is 10.3 mph. This value is relatively stable throughout the year.

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 Cozumel in January is 5.5 hours.