Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
August verdict
Good for holiday weather
Average highs sit around 28°C, giving warm days by monthly-average standards. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 239mm, so showers are a real planning factor.

Monthly averages
Temp
28°C
Rain
239mm
Sun
5.9h
Sea
26°C
Weather score
60
Good
Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 239mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Swimmable
Sea temperatures average 26°C, which can work for swimming but may feel fresh.
Map
Compare Shizuoka, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
August28°C average high
August is one of Shizuoka's warmest months, with daytime heat above the yearly average.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
August239mm average rain
August is wetter than Shizuoka's yearly average, so flexible plans matter more.
Driest monthsJanuary to February and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August5.9 hours average sun
August is one of Shizuoka's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJanuary to May, August, and December
This stretch has the strongest sunshine in the monthly averages.
August26°C average sea
August is one of Shizuoka's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
August60 weather score
August is one of Shizuoka's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.