South Korea
Seoul in April: weather & travel advice
This month's data profile
Strong month under the current formula
Seoul in April is climatically well suited to city breaks and active holidays and hiking. The average daily high is around 16 °C. With about 7 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
69/100 · #5
Warmth
#7
Dryness
#6
Sun
#3
Published best categories: Active
Seoul · AprilPhoto: Basile Morin · CC BY-SA 4.0Climate facts
- Average high
- 16 °C
- Average low
- 5 °C
- Rainy days (est.)
- 7 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 74 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| March | 9 | -1 | 6 | 43 | 5.3 | 74 | 3.2 | 55 |
| April (selected) | 16 | 5 | 7 | 69 | 6.4 | 74 | 3.1 | 69 |
| May | 21 | 11 | 8 | 95 | 6.9 | 76 | 2.8 | 83 |
How do the previous and next months compare?
Baseline: April (69/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| March | -14 | -6.5 °C | -5.5 °C | -1 | -26.6 mm | -1.1 h | ±0 % | +0.1 m/s |
| May | +14 | +5.4 °C | +5.7 °C | +1 | +25.6 mm | +0.5 h | +1.1 % | -0.3 m/s |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Seoul in April?
The average daily high is around 16 °C, with an average daily low of about 5 °C.
Does it rain a lot in Seoul in April?
The curated estimate is about 7 rainy days per month, not a directly measured long-term average. Total precipitation averages around 69 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Seoul?
By the climate score, May, June, September and October are the strongest months for Seoul. April is not among them.