Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
September verdict
Good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 5.1h per day, enough for a balanced month. Rainfall averages 138mm, so some wet days are possible.
Monthly averages
Temp
27°C
Rain
138mm
Sun
5.1h
Sea
25°C
Weather score
62
Good
Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Showers
Rainfall averages 138mm, so some wet days are possible.
Some sun
Sunshine averages 5.1h per day, enough for a balanced month.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Compare Porto Seguro, Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
September27°C average high
September is on the cooler side of Porto Seguro's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to April and December
This stretch sets the upper range for average daytime heat.
September138mm average rain
September sits near Porto Seguro's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March and August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September5.1 hours average sun
September is one of Porto Seguro's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to May and August
This stretch has the strongest sunshine in the monthly averages.
September25°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to May
Sea temperatures are usually near 27°C in this stretch, so swimming comfort is at its strongest.
September62 weather score
September is close to Porto Seguro's usual weather score, with limited month-to-month change.
Best weather monthsAll year
The weather score stays consistently strong through the year.