Cool
Average highs are around 3°C, so pack for cooler days.
January verdict
South Korea in January
Weather score33Poor
Poor for holiday weather
Average highs are around 3°C, so pack for cooler days. Sunshine averages 5.6h per day, enough for a balanced month. Rainfall averages 32mm, which is relatively low for holiday planning.
January weather
Monthly averages
Temp
3°C
Rain
32mm
Sun
5.6h
Sea
8°C
Weather score
33
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 32mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 8°C, so the water can feel cool.
Map
Weather map
Compare South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
January3°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.
Rain
January32mm average rain
January is one of South Korea's driest months, making outdoor days easier to plan than in wetter parts of the year.
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
January5.6 hours average sun
January is one of South Korea's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril to May
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January8°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 18°C in this stretch, so swimming comfort is at its strongest.
Weather score
January33 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 monthsJune to September
These months have the strongest weather score in the monthly averages.
