Cool
Average highs are around 14°C, so pack for cooler days.
March verdict
Poor for holiday weather
Average highs are around 14°C, so pack for cooler days. Sunshine averages 3.9h per day, so this is not one of the brighter months. Rainfall averages 313mm, so showers are a real planning factor.
Monthly averages
Temp
14°C
Rain
313mm
Sun
3.9h
Sea
21°C
Weather score
10
Poor
Cool
Average highs are around 14°C, so pack for cooler days.
Wet
Rainfall averages 313mm, so showers are a real planning factor.
Limited sun
Sunshine averages 3.9h 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
Compare Yakushima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
March14°C average high
March is on the cooler side of Yakushima's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
March313mm average rain
March 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.
March3.9 hours average sun
March is below Yakushima's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
March21°C average sea
March is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJuly to September
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
March10 weather score
March is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.