Mild
Average highs are around 23°C, so days are mild rather than hot.
June verdict
Poor for holiday weather
Average highs are around 23°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 280mm, so showers are a real planning factor.

Monthly averages
Temp
23°C
Rain
280mm
Sun
4.2h
Sea
21°C
Weather score
36
Poor
Mild
Average highs are around 23°C, so days are mild rather than hot.
Wet
Rainfall averages 280mm, 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 21°C, so the water can feel cool.
Map
Compare Shizuoka, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
June23°C average high
June sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
June280mm average rain
June is one of Shizuoka's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to February and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
June4.2 hours average sun
June is one of Shizuoka's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to May, August, and December
This stretch has the strongest sunshine in the monthly averages.
June21°C average sea
June is close to Shizuoka's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
June36 weather score
June sits close to Shizuoka'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.