Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
September verdict
Kumejima, Japan in September
Weather score60Good
Good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 6.8h per day, enough for a balanced month. Rainfall averages 170mm, so some wet days are possible.
September weather
Monthly averages
Temp
30°C
Rain
170mm
Sun
6.8h
Sea
28°C
Weather score
60
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 170mm, so some wet days are possible.
Some sun
Sunshine averages 6.8h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Kumejima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September30°C average high
September is one of Kumejima's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September170mm average rain
September sits near Kumejima's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.8 hours average sun
September is brighter than Kumejima's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September28°C average sea
September is one of Kumejima's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
September60 weather score
September scores above Kumejima's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly and September to October
These months have the strongest weather score in the monthly averages.
Hotels near Kumejima, Japan
Marriott
Renaissance Okinawa ResortOnna-son, Kunigami-gun, Japan
Sheraton Okinawa Sunmarina ResortKunigami-gun, Okinawa, Japan
The Ritz-Carlton, OkinawaNago City, Okinawa, Japan
Courtyard by Marriott Okinawa ResortNago, Okinawa, Japan
IRAPH SUI, a Luxury Collection Hotel, Miyako OkinawaMiyakojima-city, Okinawa, Japan