Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
May verdict
British Indian Ocean Territory in May
Weather score69Good
Good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 0h per day, so this is not one of the brighter months. Rainfall averages 127mm, so some wet days are possible.
May weather
Monthly averages
Temp
30°C
Rain
127mm
Sun
0h
Sea
29°C
Weather score
69
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 127mm, so some wet days are possible.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare British Indian Ocean Territory with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May30°C average high
May is close to British Indian Ocean Territory's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
May127mm average rain
May is one of British Indian Ocean Territory's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMarch to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May0 hours average sun
May is close to British Indian Ocean Territory's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
May29°C average sea
May sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to June and October to December
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
May69 weather score
May is one of British Indian Ocean Territory's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsFebruary to December
These months have the strongest weather score in the monthly averages.