Mild
Average highs are around 21°C, so days are mild rather than hot.
September verdict
Florianopolis, Brazil in September
Weather score40Poor
Poor for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 4.2h per day, so this is not one of the brighter months. Rainfall averages 123mm, so some wet days are possible.
September weather
Monthly averages
Temp
21°C
Rain
123mm
Sun
4.2h
Sea
19°C
Weather score
40
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 123mm, so some wet days are possible.
Limited sun
Sunshine averages 4.2h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 19°C, so the water can feel cool.
Map
Weather map
Compare Florianopolis, Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September21°C average high
September is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
September123mm average rain
September sits near Florianopolis' yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsApril to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September4.2 hours average sun
September is one of Florianopolis' cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to May and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September19°C average sea
September is below Florianopolis' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJanuary to April and December
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
September40 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to April and December
These months have the strongest weather score in the monthly averages.