Cool
Average highs are around 6°C, so pack for cooler days.
January verdict
Ulsan, South Korea in January
Weather score35Poor
Poor for holiday weather
Average highs are around 6°C, so pack for cooler days. Sunshine averages 6.2h per day, enough for a balanced month. Rainfall averages 32mm, which is relatively low for holiday planning.
January weather
Monthly averages
Temp
6°C
Rain
32mm
Sun
6.2h
Sea
15°C
Weather score
35
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 6.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Weather map
Compare Ulsan, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
January6°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 Ulsan'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
January6.2 hours average sun
January is below Ulsan's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril to May
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January15°C average sea
January is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaAugust to September
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
January35 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.
