Cool
Average highs are around 18°C, so pack for cooler days.
April verdict
Yakushima, Japan in April
Weather score24Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 4.6h per day, so this is not one of the brighter months. Rainfall averages 331mm, so showers are a real planning factor.
April weather
Monthly averages
Temp
18°C
Rain
331mm
Sun
4.6h
Sea
21°C
Weather score
24
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 331mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.6h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Weather map
Compare Yakushima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
April18°C average high
April 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
April331mm average rain
April sits near Yakushima's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
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
April4.6 hours average sun
April 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
April21°C average sea
April is below Yakushima's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
April24 weather score
April scores below Yakushima's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
