Cool
Average highs are around 5°C, so pack for cooler days.
December verdict
Onogawa Onsen, Japan in December
Weather score16Poor
Poor for holiday weather
Average highs are around 5°C, so pack for cooler days. Sunshine averages 3h per day, so this is not one of the brighter months. Rainfall averages 89mm, so some wet days are possible.
December weather
Monthly averages
Temp
5°C
Rain
89mm
Sun
3h
Sea
15°C
Weather score
16
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 89mm, so some wet days are possible.
Limited sun
Sunshine averages 3h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Weather map
Compare Onogawa Onsen, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December5°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December89mm average rain
December sits on the drier side of Onogawa Onsen's year, which helps with sightseeing and transfers.
Driest monthsJanuary to May and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December3 hours average sun
December is one of Onogawa Onsen's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril to May and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December15°C average sea
December is below Onogawa Onsen'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
December16 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels near Onogawa Onsen, Japan
Marriott
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