São LuÃs Climate by Month
São LuÃs has a steady very warm climate throughout the year.
It also experiences much rainfall throughout the year.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
The temperature in São LuÃs remains steady throughout the year, providing a consistently very warm climate. Average daytime temperatures reach a very warm 31°C in August. In March, the coolest month of the year, temperatures drop to a comfortable 29°C. At night, expect cooler temperatures, averaging 25°C during this month.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
São LuÃs has a relatively rainy climate with high precipitation levels, averaging 2171 mm of rainfall annually. São LuÃs can be quite wet during March, receiving approximately 434 mm of precipitation over 31 rainy days. In contrast September, experiences much drier conditions, with 18 mm of rainfall, spread across 6 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
São LuÃs can be enjoyed more throughout the sunniest month of August under a blue sky, with approximately 8.7 hours of sunshine daily. In contrast, the city experiences much darker days in March, with only 3.6 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is high throughout the year in São LuÃs.
Relative humidity over the year
The best time of year to visit São LuÃs in Brazil
São LuÃs has high temperatures year round ranging between 29°C and 30°C.The best time to visit is during the drier months: August, September, October and November.
Other facts from our historical weather data:
Rainy season in São LuÃs occurs in the months of January, February, March, April, May and June.
September has an average maximum temperature of 31°C and is the hottest month of the year.
The coolest month is March with an average maximum temperature of 29°C.
March tops the wettest month list with 434 mm of rainfall.
September is the driest month with 18 mm of precipitation.
August is the sunniest month with an average of 260 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
