Oki Islands, Japan in January

January7°C average high

January has some of the coolest average daytime highs of the year, so pack for fresher conditions.

Warmest monthsJuly to September

This stretch sets the upper range for average daytime heat.

January168mm average rain

January sits near Oki Islands' yearly rainfall average, so rain is a normal planning factor rather than an outlier.

Driest monthsFebruary to May, August, and October to November

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

January2.2 hours average sun

January is one of Oki Islands' 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.

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 September

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

January9 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.