Mild
Average highs are around 23°C, so days are mild rather than hot.
June verdict
Aso, Kumamoto, Japan in June
Weather score35Poor
Poor for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 4.3h per day, so this is not one of the brighter months. Rainfall averages 489mm, so showers are a real planning factor.
June weather
Monthly averages
Temp
23°C
Rain
489mm
Sun
4.3h
Sea
22°C
Weather score
35
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 489mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.3h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 22°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Aso, Kumamoto, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
June23°C average high
June 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
June489mm average rain
June is one of Aso's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
June4.3 hours average sun
June sits close to Aso's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to May, July to August, and October
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
June22°C average sea
June is close to Aso's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
June35 weather score
June sits close to Aso's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
