Cool
Average highs are around 11°C, so pack for cooler days.
December verdict
Hiroshima City, Hiroshima, Japan in December
Weather score23Poor
Poor for holiday weather
Average highs are around 11°C, so pack for cooler days. Sunshine averages 3.9h per day, so this is not one of the brighter months. Rainfall averages 47mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
11°C
Rain
47mm
Sun
3.9h
Sea
17°C
Weather score
23
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 47mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 3.9h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare Hiroshima City, Hiroshima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December11°C average high
December is on the cooler side of Hiroshima City'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
December47mm average rain
December is one of Hiroshima City's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to March and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December3.9 hours average sun
December is one of Hiroshima City's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December17°C average sea
December is below Hiroshima City's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
December23 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 monthsAugust to September
These months have the strongest weather score in the monthly averages.
