Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
August verdict
Good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 5.6h per day, enough for a balanced month. Rainfall averages 305mm, so showers are a real planning factor.

Monthly averages
Temp
27°C
Rain
305mm
Sun
5.6h
Sea
28°C
Weather score
56
Good
Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 305mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.6h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Aso, Kumamoto, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
August27°C average high
August is one of Aso's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August305mm average rain
August sits near Aso's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August5.6 hours average sun
August is one of Aso's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to May, July to August, and October
This stretch has the strongest sunshine in the monthly averages.
August28°C average sea
August is one of Aso'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.
August56 weather score
August is one of Aso's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.