Daejeon Weather in May
May in Daejeon brings high temperatures, with highs of 25°C (77°F) and nights dropping to 13°C (55°F). Rainfall is on the higher side this month, averaging around 88 mm (3.5 in), so keep a rain jacket handy.
Rainfall in Daejeon in May
Typically, about 8 days will experience rainfall, with an average of 88 mm (3.5 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Daejeon in May
May tends to be one of the perfect months in Daejeon, with 25°C (77°F) in the afternoon and 13°C (55°F) overnight. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 13°C (55°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 Daejeon in May
Expect sunny days throughout the month, with an estimated 225 hours of sunshine. This makes it a pleasant time to visit Daejeon.
Wind Speed in Daejeon in May
Wind speeds average () during May. This means conditions are typically very calm, with barely any noticeable air movement. While this is an average, some days may bring a light breeze, but many remain entirely still.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Daejeon.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Daejeon's climate page.
Daejeon Temperature in May
Min Temperature
13°C (55°F)
Max Temperature
25°C (77°F)
Chance of Rain
27%
Precipitation
88 mm (3.5 in)
Rainy days
8 days
Humidity
67%
Windspeed
()
Sunshine
225 hours
Percentage Sunshine
51%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Daejeon typically rise from around 23°C (73°F) at the start of May to approximately 26°C (79°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°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 for Daejeon in May
Browse day-by-day weather records for Daejeon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Daejeon historical weather extremes in May
According to our 50 years of weather records for Daejeon, the following extremes were recorded between 1976 and 2026.
- Daejeon recorded its highest May temperature of 33°C (91°F) on May 31, 2014.
- On May 17, 1981, Daejeon saw its coldest May day with temperatures maxing out at 13°C (55°F).
- Nighttime temperatures dropped to 1°C (34°F) on May 4, 1995, 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
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unpleasant
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What to Wear in Daejeon in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Daejeon in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Daejeon's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Daejeon climate overview or explore weather in South Korea.
