The highest day temperature in January 2026 was 93°F. The lowest night temperature was 66°F. The average values for day and night temperatures during January were 85.5°F и 73.7°F respectivly.

The average sea surface temperature in January 2026 for Chetumal was 80.5°F. The maximum and minimum values were 78.0°F and 82.8°F respectively.

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

Precipitation total in January for Chetumal is 2.1 in.

The average wind speed in January is 7.4 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 Chetumal in January is 5.8 hours.