Asan Weather in April
Thinking of visiting Asan in April? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 6°C (43°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Asan in April
Historically, the month has about 9 days of rain, averaging 75 mm (3 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Asan in April
The temperature in Asan in April is perfect. Daytime highs reach 20°C (68°F), with nights dropping to 6°C (43°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 6°C (43°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Asan in April
The city usually sees around 235 hours of sunlight, indicating many sunny days — a great month for sightseeing.If your ideal day consists of dry skies and pleasant temperatures, April, May and October typically offer the best circumstances for Asan.
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 April
Min Temperature
6°C (43°F)
Max Temperature
20°C (68°F)
Chance of Rain
29%
Precipitation
75 mm (3 in)
Rainy days
9 days
Humidity
62% *
Sunshine
235 hours *
Percentage Sunshine
59% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Asan typically rise from around 16°C (61°F) at the start of April to approximately 20°C (68°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 10°C (50°F).
Average temperatures in April
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 April
Historical weather for Asan in April
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 April
Based on 50 years of weather observations in Asan between 1976 and 2026, these are the recorded extremes.
- The hottest April day on record in Asan reached 31°C (88°F) (April 30, 2005).
- On April 8, 1993, Asan saw its coldest April day with temperatures maxing out at 6°C (43°F).
- Nighttime temperatures dropped to -5°C (23°F) on April 1, 1991, marking the coldest April night on record.
Best Places in South Korea in April
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 April →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Asan in April
For Asan in April, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Asan in April
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.
