Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
March verdict
Mixed for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 3.6h per day, so this is not one of the brighter months. Rainfall averages 390mm, so showers are a real planning factor.
Monthly averages
Temp
30°C
Rain
390mm
Sun
3.6h
Sea
29°C
Weather score
46
Mixed
Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 390mm, so showers are a real planning factor.
Limited sun
Sunshine averages 3.6h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare São Luís, Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
March30°C average high
March is close to São Luís' usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
March390mm average rain
March is one of São Luís' wettest months, so rain is likely to be a major planning factor.
Driest monthsJune to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
March3.6 hours average sun
March is one of São Luís' cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJuly to November
This stretch has the strongest sunshine in the monthly averages.
March29°C average sea
March is part of a consistently warm sea-temperature pattern, so swimming comfort changes little through the year.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
March46 weather score
March is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsAugust to November
These months have the strongest weather score in the monthly averages.