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What’s the climate like in Ulsan?

The current climate in Ulsan features temperatures ranging from a high of 31°C to a low of 8°C throughout the year. The average yearly temperature is around 20°C. At night, temperatures in the colder months average around -3°C and in the warmer months around 24°C.

The highest temperature recorded in Ulsan in recent years was 38°C in August 2017. The lowest daytime temperature recorded was -6°C in January 2021.

On average, Ulsan gets 1526 mm of precipitation each year. Of this, about 2,5 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.

Curious about the weather in other parts of South Korea? Check out the climate and weather for spots like Seoul, Busan, or explore other destinations in South Korea.

Best time to visit Ulsan?

The best time to visit Ulsan for mild to warm weather is March up to June, October and November. You might get some rain, but the temperatures are just right to explore Ulsan.

Climate Table of Ulsan

The climate table of Ulsan shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Temp. max (°C) 8 10 15 20 25 27 30 31 27 22 16 9
Temp. min (°C) -2 0 5 10 15 19 23 24 19 12 6 -1
Precipitation
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Precipitation (mm) 27 31 128 113 87 140 256 298 258 90 57 41
Snow (cm) 0,4 1,1 0,6 0 0 0 0 0 0 0 0,1 0,3
UV Index 5 6 7 7 8 8 7 7 6 6 5 5

Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.

  • Average yearly temperature: 20°C
  • Highest temperature: 31°C in August
  • Lowest temperature: 8°C in January
  • Precipitation*: 1526 mm per year, averaging 127 mm per month
  • Snowfall: 2,5 cm per year
  • Driest months: 27 mm in January, 31 mm in February and 41 mm in December
  • Wettest months: 298 mm in August, 258 mm in September and 256 mm in July

*Precipitation is measured as a combination of rain, snow, and hail

Average Temperature per Month in Ulsan

This graph shows the average maximum temperatures per month in Ulsan, South Korea. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.

Temperature per Month in Ulsan, South Korea,

Average Precipitation per Month in Ulsan

This graph shows how much rainfall Ulsan, South Korea, gets on average per month. Rainfall is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of rainfall is measured in millimeters, and the average is calculated based on the recorded rainfall per month from past years.

Precipitation per Month in Ulsan, South Korea,

Average Snowfall per Month in Ulsan

This graph shows how much snow Ulsan, South Korea, gets on average per month. The amount of snowfall is measured in centimeters and the average is calculated based on the recorded snowfall per month from past years.

Snowfall per Month in Ulsan, South Korea,

Average UV Index per Month in Ulsan

This graph shows the average UV index per month in Ulsan, South Korea. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.

UV Index per Month in Ulsan, South Korea,

Yearly Temperature in Ulsan

This graph shows the average yearly temperature in Ulsan, South Korea. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.

Yearly Temperature in Ulsan, South Korea,

Total Yearly Precipitation in Ulsan

This chart shows the total yearly precipitation in Ulsan, South Korea, over the past few years. The total yearly precipitation, measured in millimeters, is the sum of all the rain that fell in the twelve months of that year.

Yearly Precipitation in Ulsan, South Korea,

Total Yearly Snowfall in Ulsan

This chart shows the total yearly snowfall in Ulsan, South Korea, over the past few years. The total yearly snowfall, measured in centimeters, is the sum of all the snow that fell in the twelve months of that year.

Yearly Snowfall in Ulsan, South Korea,

Weather experiences in Ulsan

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Average weather in Ulsan by month

Click on a month below to see detailed weather info for Ulsan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.

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