Measurements:
°C
°F
Seoul
74°F
SW 4 mph
Feels like: 78°F
Precip: 0%
World Resorts South Korea Seoul Weather April Weather in Seoul

Seoul Weather: April

Average Day Temperature: 64.7°F
Average Night Temperature: 51.2°F
Sea Water Temperature: 48.8°F
Number of Sunny Days: 17 days
Sunshine Hours: 12.6 - 13.7 hours
Number of Rainy Days: 3 days
Precipitation Totals: 2.1 in

Air Temperature in April, °F

Select Year: 2026 2025 2024

The highest day temperature in April 2026 was 83°F. The lowest night temperature was 43°F. The average values for day and night temperatures during April were 67.5°F и 54.7°F respectivly.

Seoul Water Sea Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Seoul was 52.3°F. The maximum and minimum values were 47.2°F and 58.4°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in April are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in April, in

Precipitation total in April for Seoul is 2.1 in.

Wind Speed in April, mph

The average wind speed in April is 7.1 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Seoul in April is 9.0 hours.

Best Time to Visit Seoul
The most sunny months:
May 19 days
October 18 days
March 17 days
The most warm months:
August 91.1 °F
July 89.9 °F
June 85.7 °F
Warmest sea temperature:
August 81.9 °F
September 77.6 °F
July 77.4 °F
The most cold months:
January 30.6 °F
December 34.4 °F
February 37.0 °F
The most rainy months:
July 11 days
August 8 days
June 5 days
The most windy months:
April 7 mph
March 7 mph
May 6 mph

Seoul on the Weather Map

South Korea Resorts:
NAME
Busan +70
Incheon +74
Jeju +72
Muju +62
Seoul +74
Yongpyong +64
24 Hours Weather Forecast
Seoul
Local time: 20:07
19 may, tuesday
2100 74°F
SW
4 mph
20 may, wednesday
0000 74°F
W
4 mph
0300 70°F
SW
4 mph
0600 70°F
SW
4 mph
0900 70°F
NW
9 mph
1200 66°F
W
10 mph
1500 62°F
W
7 mph
1800 62°F
W
8 mph