Mild
Average highs are around 24°C, so days are mild rather than hot.
May verdict
Mixed for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 6.2h per day, enough for a balanced month. Rainfall averages 141mm, so some wet days are possible.
Monthly averages
Temp
24°C
Rain
141mm
Sun
6.2h
Sea
18°C
Weather score
48
Mixed
Mild
Average highs are around 24°C, so days are mild rather than hot.
Showers
Rainfall averages 141mm, so some wet days are possible.
Some sun
Sunshine averages 6.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°C, so the water can feel cool.
Map
Compare Osaka, Osaka, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
May24°C average high
May is close to Osaka'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.
May141mm average rain
May sits near Osaka's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May6.2 hours average sun
May is one of Osaka's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
May18°C average sea
May is close to Osaka's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
May48 weather score
May scores above Osaka's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to October
These months have the strongest weather score in the monthly averages.