Mild
Average highs are around 25°C, so days are mild rather than hot.
Weather Guide
Best months: August, July, September
Across the year, average daytime temperatures are around 15°C, sunshine averages 5.1h per day, and rainfall totals about 1631mm. Sea temperatures average 20°C across the year.
Annual averages
Temp
15°C
Rain
1631mm
Annual total
Sun
5.1h
Sea
20°C
Weather score
34
Poor avg
Mild
Average highs are around 25°C, so days are mild rather than hot.
Showers
Rainfall averages 173mm, so some wet days are possible.
Limited sun
Sunshine averages 4.4h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 24°C, which can work for swimming but may feel fresh.
Map
Compare Yamanakako, Minamitsuru-gun, Yamanashi, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
July25°C average high
July is one of Yamanakako's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
July173mm average rain
July sits near Yamanakako'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.
July4.4 hours average sun
July is below Yamanakako's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to May, August, and December
This stretch has the strongest sunshine in the monthly averages.
July24°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
July50 weather score
July is one of Yamanakako'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.