Cool
Average highs are around 8°C, so pack for cooler days.
December verdict
Yamanakako, Minamitsuru-gun, Yamanashi, Japan in December
Weather score34Poor
Poor for holiday weather
Average highs are around 8°C, so pack for cooler days. Sunshine averages 5.8h per day, enough for a balanced month. Rainfall averages 40mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
8°C
Rain
40mm
Sun
5.8h
Sea
18°C
Weather score
34
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 40mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°C, so the water can feel cool.
Map
Weather map
Compare Yamanakako, Minamitsuru-gun, Yamanashi, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December8°C average high
December is on the cooler side of Yamanakako's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December40mm average rain
December is one of Yamanakako's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to March and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December5.8 hours average sun
December is one of Yamanakako'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.
Sea temperature
December18°C average sea
December is below Yamanakako's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
December34 weather score
December sits close to Yamanakako'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.
