Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Kumejima, Japan Average Monthly Weather
Weather score50Mixed annual avg
Best months: October, September, July
Across the year, average daytime temperatures are around 25°C, sunshine averages 5h per day, and rainfall totals about 2115mm. Sea temperatures average 25°C across the year.
Annual weather
Annual averages
Temp
25°C
Rain
2115mm
Annual total
Sun
5h
Sea
25°C
Weather score
50
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 274mm, so showers are a real planning factor.
Some sun
Sunshine averages 7.3h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°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
August31°C average high
August 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
August274mm average rain
August is one of Kumejima's wettest months, so rain is likely to be a major planning factor.
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
August7.3 hours average sun
August 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
August29°C average sea
August 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
August52 weather score
August sits close to Kumejima's yearly weather-score average, giving a typical overall read on the month.
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