Mud festival in South Korea
In July, the peaceful seaside town of Boryeong turned into a chaos of mud for 9 days. We recommend putting this festival on your bucket list.
Yongin Weather in May
In Yongin, May brings high daytime temperatures around 24°C (75°F), with nights cooling to 12°C (54°F). Expect quite a bit of rainfall this month.
Rainfall in Yongin in May
The climate data from previous years indicates about 8 days of rain, averaging 97 mm (3.8 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Yongin in May
The temperature in Yongin in May is excellent. Daytime highs reach 24°C (75°F), with nights dropping to 12°C (54°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Yongin in May
The month enjoys around 225 hours of sunshine, creating mostly sunny days with good weather conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May and October typically offer the best weather for Yongin.
Yongin Temperature in May
Min Temperature
12°C (54°F)
Max Temperature
24°C (75°F)
Chance of Rain
27%
Precipitation
97 mm (3.8 in)
Rainy days
8 days
Humidity
58% *
Sunshine
225 hours *
Percentage Sunshine
52% *
* Data from: Seoul, South Korea (39 KM, 24 Miles).
Yongin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Yongin - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Yongin typically rise from around 22°C (72°F) at the start of May to approximately 26°C (79°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 15°C (59°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Yongin in May
Browse day-by-day weather records for Yongin spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Yongin historical weather extremes in May
The extremes listed below come from historical weather data collected in Yongin from 1976 through 2026.
- On May 24, 2019, temperatures climbed to 33°C (91°F), marking the warmest May day on record.
- The lowest daytime temperature in May was 13°C (55°F), recorded on May 4, 1990.
- Nighttime temperatures dropped to 4°C (39°F) on May 1, 2010, marking the coldest May night on record.
Best Places in South Korea in May
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Yongin in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Yongin in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Yongin 3-Day Forecast
More climate data for Yongin
Temperature Rainfall Sunshine Humidity
See the full Yongin climate overview or explore weather in South Korea.
Popular in May
Where to go in May - average daytime high across popular destinations.
Seoul
24°C (75°F) Jeonju25°C (77°F) Suwon24°C (75°F) Gyeongju25°C (77°F) Seogwipo
22°C (72°F) Incheon21°C (70°F) Busan22°C (72°F) Jeju20°C (68°F) Bucket list
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