Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Kumamoto, Japan in September
Weather score62Good
Good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 5.3h per day, enough for a balanced month. Rainfall averages 169mm, so some wet days are possible.
September weather
Monthly averages
Temp
29°C
Rain
169mm
Sun
5.3h
Sea
26°C
Weather score
62
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 169mm, so some wet days are possible.
Some sun
Sunshine averages 5.3h per day, enough for a balanced month.
Swimmable
Sea temperatures average 26°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Kumamoto, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September169mm average rain
September sits near Kumamoto'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
September5.3 hours average sun
September sits close to Kumamoto's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay and July to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September26°C average sea
September is one of Kumamoto's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
September62 weather score
September is one of Kumamoto's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsAugust to October
These months have the strongest weather score in the monthly averages.
Hotels near Kumamoto, Japan
Marriott
Fairfield by Marriott Kumamoto AsoAso, Kumamoto, Japan
Fairfield by Marriott Fukuoka UkihaUkiha, Fukuoka, Japan
Fairfield by Marriott Saga Ureshino OnsenUreshino, Saga, Japan
Nagasaki Marriott HotelNagasaki, Nagasaki, Japan
Four Points Flex by Sheraton Fukuoka HakataFukuoka, Fukuoka, Japan
The Ritz-Carlton, FukuokaFukuoka, Japan