Weather in Seoul in April 2025
Average weather
Average temperature in Seoul in April
The temperature in April is +18°C on average, with a range between a maximum of +27°C during the day and a minimum of +2°C at night.
The average maximum temperature goes down 32% by the end of the month, compared with the beginning of the month, from +25°C to +17°C.
Is Seoul warm or cold in April?
Seoul is typically mild in April.
Maximum temperatures go up compared to the previous month from +11°C to +17°C. The minimum temperature also goes up from +1°C to +7°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how April is compared to other months in Seoul:
Climate in Seoul in April
| March | April | May | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +11°C | +17°C | +23°C | ||||
| Min. temperature | ||||||
| -9°C | -2°C | +5°C | ||||
| Max. temperature | ||||||
| +24°C | +30°C | +33°C | ||||
| Rainfall | ||||||
| 34 mm | 62 mm | 86 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 60% | 60% | 64% | ||||
| Air pressure | ||||||
| 1018 HPa | 1014 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 12 | 11 | 11 | ||||
| Cloudy days | ||||||
| 11 | 9 | 10 | ||||
| Rainy days | ||||||
| 7 | 8 | 8 | ||||
| Snowy days | ||||||
| 1 | 0 | 0 | ||||
April weather is still as good as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +11°C to +17°C during the day. Prepare for more rain. Average rainfall goes from 34 mm to 62 mm. Humidity levels don’t change as the month goes on, averaging around 60%. The average wind speed doesn’t change much during April, staying around 2 m/s. The days becoming less sunny, going from 12 sunny days in March to 11 in April.
May brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Seoul is gradually increasing during April, going from 2 m/s to 3 m/s over the course of the month.
Rain
How was the weather last April in Seoul?
Climate Change over Years
The climate in Seoul in April has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+15°C) and the highest in 2021 (+18°C). The driest year was 2001 with only 618 mm of rainfall, and the wettest year was 2020 with 1720 mm.
FAQ
Is April a good time to visit Seoul?
Can you sunbathe in Seoul in April?
Is Seoul rainy in April?
Is it sunny in Seoul in April?
Other cities in South Korea
Monthly weather in Seoul
Source of the data
For this page, we’ve looked at the typical weather in Seoul, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.