The highest day temperature in January 2026 was 88°F. The lowest night temperature was 78°F. The average values for day and night temperatures during January were 86.3°F и 82.2°F respectivly.

The average sea surface temperature in January 2026 for Sao Luis was 86.3°F. The maximum and minimum values were 85.6°F and 87.8°F respectively.

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

Precipitation total in January for Sao Luis is 4.2 in.

The average wind speed in January is 7.5 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 Sao Luis in January is 4.0 hours.