Mild
Average highs are around 21°C, so days are mild rather than hot.
March verdict
Poor for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 0h per day, so this is not one of the brighter months. Rainfall averages 137mm, so some wet days are possible.
Monthly averages
Temp
21°C
Rain
137mm
Sun
0h
Sea
19°C
Weather score
39
Poor
Mild
Average highs are around 21°C, so days are mild rather than hot.
Showers
Rainfall averages 137mm, 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 19°C, so the water can feel cool.
Map
Compare Hachijojima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
March21°C average high
March is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJuly to October
This stretch sets the upper range for average daytime heat.
March137mm average rain
March sits on the drier side of Hachijojima's year, which helps with sightseeing and transfers.
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.
March0 hours average sun
March 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.
March19°C average sea
March 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.
March39 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 August
These months have the strongest weather score in the monthly averages.