Cool
Average highs are around 17°C, so pack for cooler days.
September verdict
Réunion in September
Weather score44Mixed
Mixed for holiday weather
Average highs are around 17°C, so pack for cooler days. Sunshine averages 6.2h per day, enough for a balanced month. Rainfall averages 69mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
17°C
Rain
69mm
Sun
6.2h
Sea
24°C
Weather score
44
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 69mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.2h per day, enough for a balanced month.
Swimmable
Sea temperatures average 24°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Réunion with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September17°C average high
September is on the cooler side of Réunion's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
September69mm average rain
September is one of Réunion's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMay to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.2 hours average sun
September is close to Réunion's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsJanuary to February and August to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September24°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 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
September44 weather score
September sits close to Réunion's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to June and September to December
These months have the strongest weather score in the monthly averages.