Suo-Oshima, Japan in January

January8°C average high

January 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.

January56mm average rain

January 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.

January3.9 hours average sun

January 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.

January14°C average sea

January is one of the coolest sea months, so the water may feel fresher than in peak months.

Warmest seaJuly to October

Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.

January21 weather score

January 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.