The highest day temperature in April 2025 was 89°F. The lowest night temperature was 78°F. The average values for day and night temperatures during April were 85.9°F и 81.7°F respectivly.

The average sea surface temperature in April 2025 for Sao Luis was 87.5°F. The maximum and minimum values were 86.8°F and 88.6°F respectively.

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

Precipitation total in April for Sao Luis is 7.2 in. It makes april one of the most rainy months of the year.

The average wind speed in April is 5.0 mph. It makes April the most windless month 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 April is 3.8 hours.