Cool
Average highs are around 19°C, so pack for cooler days.
January verdict
Kumejima, Japan in January
Weather score35Poor
Poor for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 3h per day, so this is not one of the brighter months. Rainfall averages 118mm, so some wet days are possible.
January weather
Monthly averages
Temp
19°C
Rain
118mm
Sun
3h
Sea
23°C
Weather score
35
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 118mm, so some wet days are possible.
Limited sun
Sunshine averages 3h 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
Weather map
Compare Kumejima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
January19°C average high
January has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
January118mm average rain
January is one of Kumejima's driest months, making outdoor days easier to plan than in wetter parts of the year.
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
January3 hours average sun
January is one of Kumejima's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January23°C average sea
January is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJuly to September
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
January35 weather score
January is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
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