The highest day temperature in March 2025 was 87°F. The lowest night temperature was 76°F. The average values for day and night temperatures during March were 85.3°F и 80.8°F respectivly.

The average sea surface temperature in March 2025 for Sao Luis was 87.0°F. The maximum and minimum values were 86.4°F and 87.6°F respectively.

Almost all days in March are gloomy. Sunny days should not be expected.

Precipitation total in March for Sao Luis is 10.2 in. It makes march the most rainy month of the year.

The average wind speed in March is 5.2 mph. It makes March one of the most windless months of the year for Sao Luis.

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 March is 3.4 hours.