Asan Weather in May
Thinking of visiting Asan in May? Expect high temperatures reaching 25°C (77°F) during the day, dropping to 13°C (55°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Asan in May
Past climate data indicates that roughly 8 days will see rain, totalling around 83 mm (3.3 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Asan in May
May is a good time to be in Asan. Days are perfect, reaching 25°C (77°F), with nights around 13°C (55°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Asan in May
The month enjoys around 248 hours of sunshine, creating mostly sunny days with good weather conditions.So this is a great month to visit if you prefer dry days with pleasant temperatures.
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 Asan's climate page.
Asan Temperature in May
Min Temperature
13°C (55°F)
Max Temperature
25°C (77°F)
Chance of Rain
26%
Precipitation
83 mm (3.3 in)
Rainy days
8 days
Humidity
65% *
Sunshine
248 hours *
Percentage Sunshine
56% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Asan 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 for Asan in May
Browse day-by-day weather records for Asan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Asan historical weather extremes in May
The extremes listed below come from historical weather data collected in Asan from 1976 through 2026.
- The warmest day in May was on May 24, 2019, with a maximum of 33°C (91°F).
- Asan experienced its chilliest May day on May 7, 2002, reaching only 12°C (54°F).
- The lowest overnight temperature recorded in May was 3°C (37°F) (May 1, 2010).
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
What to Wear in Asan 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 Asan 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 Asan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Asan climate overview or explore weather in South Korea.
