Temperatures in May
It's warm in May in South Korea with an average temperature of 26°C. Temperatures this month range from a low of 23°C to a high of 29°C. At night, you can expect temperatures between 10°C and 16°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for South Korea in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in South Korea with warm temperatures, averaging around 24°C during the day and nights close to 11°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature rises to around 26°C, with nights close to 14°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers.
End of May
By the end of May, the average daytime temperature in South Korea will be around 28°C, with nights close to 15°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in May
In May, there is an average of 87 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
The average precipitation chance is 27% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for South Korea. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
South Korea in May |
UK | ||
|---|---|---|---|
 Average Temperature |
26°C | 18°C | |
 High Temp |
29°C | 21°C | |
| Low Temp |
23°C | 15°C | |
 Total Precipitation |
87 mm | 46 mm | |
| Rainy Days |
8 days | 8 days | |
April
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit South Korea?
Want nice weather? Then May is a great time to be in South Korea. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for South Korea in May
With 36°C, South Korea hit the highest temperature in the last 10 years in May 2014. The lowest daytime temperature in this month was 14°C in 2021. The extreme night temperatures ranged from a low of 2°C to a high of 22°C.
Check out the climate of South Korea for all months and discover the best travel time
The climate of South Korea is based on weather data from Seoul. Other spots, like Busan, might have different weather. You can check out all destinations in South Korea for a full picture of the climate.
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Daily Temperature in May in South Korea
This chart shows the average daily temperatures, both day and night, for each day in May in South Korea, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in South Korea
The chart below shows the average daily precipitation in May for South Korea, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 8 days of rain in South Korea.
Daily UV Index in May in South Korea
This chart shows the average daily UV index in May in South Korea, 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.
Temperature in May in South Korea Over the Years
This chart shows the average temperature in May in South Korea, measured in degrees Celsius, over the past years.
Total Precipitation in May in South Korea Over the Years
This chart shows the average precipitation in May in South Korea, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for South Korea
Click on a specific day in May for detailed info on the typical weather on that day in South Korea. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in South Korea
Have you been to South Korea in May?
Share your weather experience in May in South Korea.
Average Weather in South Korea by Month
Click on a month below to see detailed weather info for South Korea. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of South Korea for all months at once
