Cool
Average highs are around 18°C, so pack for cooler days.
May verdict
Mixed for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 5.7h per day, enough for a balanced month. Rainfall averages 113mm, so some wet days are possible.
Monthly averages
Temp
18°C
Rain
113mm
Sun
5.7h
Sea
26°C
Weather score
46
Mixed
Cool
Average highs are around 18°C, so pack for cooler days.
Showers
Rainfall averages 113mm, so some wet days are possible.
Some sun
Sunshine averages 5.7h per day, enough for a balanced month.
Swimmable
Sea temperatures average 26°C, which can work for swimming but may feel fresh.
Map
Compare Réunion with nearby places by weather score, rain, sun, temperature, and swim conditions.
May18°C average high
May is close to Réunion's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
May113mm average rain
May sits on the drier side of Réunion's year, which helps with sightseeing and transfers.
Driest monthsMay to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May5.7 hours average sun
May 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.
May26°C average sea
May is close to Réunion's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
May46 weather score
May 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.