Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
May verdict
Good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 0h per day, so this is not one of the brighter months. Rainfall averages 161mm, so some wet days are possible.
Monthly averages
Temp
27°C
Rain
161mm
Sun
0h
Sea
23°C
Weather score
69
Good
Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Showers
Rainfall averages 161mm, so some wet days are possible.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Compare Ogasawara Islands, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
May27°C average high
May is close to Ogasawara Islands' yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to October
This stretch sets the upper range for average daytime heat.
May161mm average rain
May is one of Ogasawara Islands' wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to February
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May0 hours average sun
May is close to Ogasawara Islands' usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
May23°C average sea
May is below Ogasawara Islands' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
May69 weather score
May sits close to Ogasawara Islands' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to September and November
These months have the strongest weather score in the monthly averages.