Mild
Average highs are around 21°C, so days are mild rather than hot.
May verdict
Yakushima, Japan in May
Weather score34Poor
Poor for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 4.7h per day, so this is not one of the brighter months. Rainfall averages 407mm, so showers are a real planning factor.
May weather
Monthly averages
Temp
21°C
Rain
407mm
Sun
4.7h
Sea
24°C
Weather score
34
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 407mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.7h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 24°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Yakushima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May21°C average high
May is close to Yakushima's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
May407mm average rain
May is wetter than Yakushima's yearly average, so flexible plans matter more.
Driest monthsJanuary to February, August, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May4.7 hours average sun
May sits close to Yakushima's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May24°C average sea
May is close to Yakushima's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
May34 weather score
May sits close to Yakushima'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.
