Mild
Average highs are around 23°C, so days are mild rather than hot.
April verdict
Mixed for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 0h per day, so this is not one of the brighter months. Rainfall averages 157mm, so some wet days are possible.
Monthly averages
Temp
23°C
Rain
157mm
Sun
0h
Sea
20°C
Weather score
48
Mixed
Mild
Average highs are around 23°C, so days are mild rather than hot.
Showers
Rainfall averages 157mm, so some wet days are possible.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Compare Hachijojima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
April23°C average high
April is on the cooler side of Hachijojima's year, useful if you prefer less intense daytime heat.
Warmest monthsJuly to October
This stretch sets the upper range for average daytime heat.
April157mm average rain
April sits near Hachijojima's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March, August, and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
April0 hours average sun
April is close to Hachijojima's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
April20°C average sea
April is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJuly to October
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
April48 weather score
April sits close to Hachijojima's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.