Cool
Average highs are around 13°C, so pack for cooler days.
December verdict
Onjuku, Japan in December
Weather score31Poor
Poor for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 79mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
13°C
Rain
79mm
Sun
5.2h
Weather score
31
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 79mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Map
Weather map
Compare Onjuku, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December13°C average high
December is on the cooler side of Onjuku's year, useful if you prefer less intense daytime heat.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
December79mm average rain
December is one of Onjuku's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to February, July, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December5.2 hours average sun
December sits close to Onjuku's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
Weather score
December31 weather score
December scores below Onjuku's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
