Mild
Average highs are around 22°C, so days are mild rather than hot.
April verdict
Poor for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 4.2h per day, so this is not one of the brighter months. Rainfall averages 221mm, so showers are a real planning factor.
Monthly averages
Temp
22°C
Rain
221mm
Sun
4.2h
Sea
22°C
Weather score
40
Poor
Mild
Average highs are around 22°C, so days are mild rather than hot.
Wet
Rainfall averages 221mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.2h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 22°C, so the water can feel cool.
Map
Compare Amami Oshima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
April22°C average high
April is close to Amami Oshima'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.
April221mm average rain
April sits on the drier side of Amami Oshima's year, which helps with sightseeing and transfers.
Driest monthsJanuary to April, July, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
April4.2 hours average sun
April sits close to Amami Oshima'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.
April22°C average sea
April is below Amami Oshima'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.
April40 weather score
April sits close to Amami Oshima's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to October
These months have the strongest weather score in the monthly averages.