South KoreaThe weather in May in Ulsan
It's warm in May in Ulsan with an average temperature of 25°C. Temperatures this month range from a low of 22°C to a high of 28°C. At night, you can expect temperatures between 12°C and 18°C.
Looking for great weather? May is a good time to be in Ulsan. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Ulsan, South Korea. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 32°C in 2019, Ulsan reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 13°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 5°C to a highest value of 22°C.
Rainfall amount
In May, there is an average of 87 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for Ulsan
Click on any day in May to get detailed info about the usual weather on that day in Ulsan. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Ulsan | New York | |
|---|---|---|
| Average temperature | 25°C | 22°C |
| Max. temperature | 28°C | 28°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 87 mm | 105 mm |
| Rainy days | 12 days | 14 days |
Start of May
The month of May starts in Ulsan with warm temps, averaging around 23°C during the day and nights around 13°C.
Mid May
By mid-May, daytime temps rise to around 25°C, with nights around 15°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Ulsan is around 27°C, while nighttime temps are about 17°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Ulsan for all months and discover the best travel time
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.
Temperature charts
These charts show the average temperatures in May in Ulsan, South Korea. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Ulsan
Temperature in May in Ulsan over the years
Precipitation charts
These charts show the average amount of precipitation in May in Ulsan, South Korea. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Ulsan
Total precipitation in May in Ulsan over the years
Daily UV index in May in Ulsan
This chart shows the average daily UV index in May in Ulsan, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Ulsan
Have you been to Ulsan in May?
Share your weather experience in May in Ulsan.
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.