Cool
Average highs are around 18°C, so pack for cooler days.
April verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 161mm, so some wet days are possible.
Monthly averages
Temp
18°C
Rain
161mm
Sun
5.9h
Sea
14°C
Weather score
27
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Showers
Rainfall averages 161mm, so some wet days are possible.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Compare Hiroshima City, Hiroshima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
April18°C average high
April is close to Hiroshima City'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.
April161mm average rain
April sits near Hiroshima City's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
April5.9 hours average sun
April is brighter than Hiroshima City's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
April14°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 24°C in this stretch, so swimming comfort is at its strongest.
April27 weather score
April scores below Hiroshima City's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsAugust to September
These months have the strongest weather score in the monthly averages.