December verdict

Suo-Oshima, Japan in December

Weather score25Poor

Poor for holiday weather

Average highs are around 11°C, so pack for cooler days. Sunshine averages 4h per day, so this is not one of the brighter months. Rainfall averages 41mm, which is relatively low for holiday planning.

December weather

Monthly averages

Temp

11°C

Rain

41mm

Sun

4h

Sea

17°C

Weather score

25

Poor

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score

Trip feel

Cool

Average highs are around 11°C, so pack for cooler days.

Drier

Rainfall averages 41mm, which is relatively low for holiday planning.

Limited sun

Sunshine averages 4h 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 Suo-Oshima, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

View on map

December11°C average high

December is on the cooler side of Suo-Oshima's year, useful if you prefer less intense daytime heat.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

December41mm average rain

December is one of Suo-Oshima'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.

December4 hours average sun

December is one of Suo-Oshima'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

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December17°C average sea

December is below Suo-Oshima'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

View on map

December25 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 September

These months have the strongest weather score in the monthly averages.

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