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.
Hwaseong Weather in May
May is one of the excellent months to visit Hwaseong, with daytime temperatures of 21°C (70°F) and lows of 13°C (55°F) at night. Do note that quite a bit of rainfall is typical, averaging around 98 mm (3.9 in).
Rainfall in Hwaseong in May
This month experiences about 8 days of rain according to historical data, averaging 98 mm (3.9 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Hwaseong in May
May in Hwaseong is generally excellent, with days reaching 21°C (70°F) and nights settling around 13°C (55°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Hwaseong in May
There are approximately 242 hours of sunshine this month, resulting in mostly clear days.If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Hwaseong.
Hwaseong Temperature in May
Min Temperature
13°C (55°F)
Max Temperature
21°C (70°F)
Chance of Rain
26%
Precipitation
98 mm (3.9 in)
Rainy days
8 days
Humidity
68% *
Sunshine
242 hours *
Percentage Sunshine
*
* Data from: Incheon, South Korea (30 KM, 19 Miles).
Hwaseong Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hwaseong - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hwaseong typically rise from around 22°C (72°F) at the start of May to approximately 25°C (77°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 Hwaseong in May
Browse day-by-day weather records for Hwaseong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hwaseong historical weather extremes in May
The extremes listed below come from historical weather data collected in Hwaseong from 1976 through 2026.
- The hottest May day on record in Hwaseong reached 32°C (90°F) (May 24, 2019).
- Hwaseong experienced its chilliest May day on May 4, 1990, reaching only 13°C (55°F).
- Hwaseong registered its coldest May night on May 1, 2010, with temperatures dropping to 4°C (39°F).
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 Hwaseong 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 Hwaseong in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Hwaseong 3-Day Forecast
More climate data for Hwaseong
Temperature Rainfall Sunshine Humidity
See the full Hwaseong 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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Mud festival in South Korea
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