Climate · Seoul

Seoul in April

Mild and mostly dry, as the days lengthen.

Typical weather, averaged over 30 years

April in Seoul is mild: highs near 64°F, lows near 42°F. Rain falls on about two days a week, and the days lengthen by 49 minutes from the first week to the last.April in Seoul is mild: highs near 18°C, lows near 6°C. Rain falls on about two days a week, and the days lengthen by 49 minutes from the first week to the last.

High
64°F18°Caverage
Low
42°F6°Caverage
Wet days
2a week · 25% of days
Daylight
13h 08mon average

Is April a good time to visit Seoul?


April sits outside Seoul's best months, which run in two parts: May, or September to October. Expect mild days and rain on about two days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How April sits in the year

week by week

Temperature

Highs near 64°F in April, against 38°F to 87°F through the year.Highs near 18°C in April, against 3°C to 31°C through the year.

Chance of a wet day

25% of days in April, against 14% to 58% through the year.

Cloud cover

47% cover in April, against 36% to 56% through the year.

Daylight

13h 08m in April, against 9h 37m to 14h 43m through the year.

Week by week, lightly smoothed, with April shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side


  1. March53°12°low 31°low -1°1 wet day a weekRain on about one day a week.
  2. April64°18°low 42°low 6°2 wet days a weekRain on about two days a week.
  3. May74°23°low 52°low 11°2 wet days a weekRain on about two days a week.

Where Seoul sits, in April

Asia/Seoul

this place
typical high in April 40°F4°C95°F35°C
Sunrise, mid-April
5:59 AMsets 7:06 PM
Above the sea
30 mlow-lying
Latitude
37.6°Nnorthern hemisphere
Nearest of ours
Busan325 km south-east

The land around Seoul, shaded by its typical high in April, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in South Korea in April

high · low · wet days

  • Busan64°18° · 49°9° 2
  • Jeju63°17° · 51°11° 2

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Seoul. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (30 m) against the climate model's (83 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (30 m) against the climate model's (83 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.