Mild
Average highs are around 21°C, so days are mild rather than hot.
December verdict
Réunion in December
Weather score47Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 181mm, so showers are a real planning factor.
December weather
Monthly averages
Temp
21°C
Rain
181mm
Sun
5.9h
Sea
27°C
Weather score
47
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 181mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Swimmable
Sea temperatures average 27°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
December21°C average high
December is one of Réunion's warmest months, with daytime heat above the yearly average.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
December181mm average rain
December sits near Réunion's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsMay to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December5.9 hours average sun
December 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
December27°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to April
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
December47 weather score
December scores above Réunion's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to June and September to December
These months have the strongest weather score in the monthly averages.