Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
São Luís, Brazil Average Monthly Weather
Weather score63Good annual avg
Best months: October, September, November
Across the year, average daytime temperatures are around 31°C, sunshine averages 6.5h per day, and rainfall totals about 2100mm. Sea temperatures average 28°C across the year.
Annual weather
Annual averages
Temp
31°C
Rain
2100mm
Annual total
Sun
6.5h
Sea
28°C
Weather score
63
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 35mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.4h per day, so bright days are a strong part of the month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare São Luís, Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August 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.
Rain
August35mm average rain
August is one of São Luís' driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJune to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.4 hours average sun
August is one of São Luís' sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJuly to November
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August28°C average sea
August 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.
Weather score
August78 weather score
August is one of São Luís' best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsAugust to November
These months have the strongest weather score in the monthly averages.