Mild
Average highs are around 25°C, so days are mild rather than hot.
September verdict
Rio de Janeiro, Rio de Janeiro, Brazil in September
Weather score57Good
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 4.7h per day, so this is not one of the brighter months. Rainfall averages 109mm, so some wet days are possible.
September weather
Monthly averages
Temp
25°C
Rain
109mm
Sun
4.7h
Sea
21°C
Weather score
57
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 109mm, so some wet days are possible.
Limited sun
Sunshine averages 4.7h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Weather map
Compare Rio de Janeiro, Rio de Janeiro, Brazil with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September25°C average high
September is on the cooler side of Rio de Janeiro's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March
This stretch sets the upper range for average daytime heat.
Rain
September109mm average rain
September sits on the drier side of Rio de Janeiro's year, which helps with sightseeing and transfers.
Driest monthsMay to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September4.7 hours average sun
September is one of Rio de Janeiro's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to March and May to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September21°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to April
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
September57 weather score
September scores below Rio de Janeiro's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsFebruary to August
These months have the strongest weather score in the monthly averages.
Hotels in Rio de Janeiro, Rio de Janeiro, Brazil
Marriott
JW Marriott Hotel Rio de JaneiroRio de Janeiro, Rio de Janeiro, Brazil
Sheraton Grand Rio Hotel & ResortRio de Janeiro, Rio de Janeiro, Brazil
Courtyard Rio de Janeiro Barra da TijucaRio de Janeiro, Brazil
City Express Rio de Janeiro Barra da TijucaRio de Janeiro, Rio de Janeiro, Brazil
Residence Inn Rio de Janeiro Barra da TijucaRio de Janeiro, Brazil