Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
September verdict
Ogasawara Islands, Japan in September
Weather score70Very good
Very 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 122mm, so some wet days are possible.
September weather
Monthly averages
Temp
30°C
Rain
122mm
Sun
0h
Sea
28°C
Weather score
70
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 122mm, 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 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Ogasawara Islands, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September30°C average high
September is one of Ogasawara Islands' warmest months, with daytime heat above the yearly average.
Warmest monthsJune to October
This stretch sets the upper range for average daytime heat.
Rain
September122mm average rain
September is wetter than Ogasawara Islands' yearly average, so flexible plans matter more.
Driest monthsJanuary to February
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September0 hours average sun
September 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.
Sea temperature
September28°C average sea
September is one of Ogasawara Islands' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
September70 weather score
September 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.