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Best Time to Visit South Korea
Climate based on Seoul • 2015–2024
The best overall weather in South Korea is in August, with average highs around 29°C. The single best 14-day window: Aug 7 - Aug 20. The hottest month is August (29°C highs) and the coolest is January (2°C highs).
Year-at-a-glance heatmap
Each cell is colored by the typical daytime high for that day. Hover for rainfall and sunshine.
1
5
10
15
20
25
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
- Freezingbelow 0°C
- Very Cold0–5°C
- Cold5–12°C
- Fresh12–18°C
- Comfortable18–25°C
- Warm25–30°C
- Very Warm30–39°C
- Smoking Hot39°C+
Best 14-day travel windows
Top pick
Aug 7 - Aug 20
14-day window • Avg 27°C • Very Warm
Alternative 1
Jul 21 - Aug 3
14-day window • Avg 27°C • Warm
Alternative 2
Jul 7 - Jul 20
14-day window • Avg 25°C • Warm
Month-by-month breakdown
January
Very Cold-2°Cavg
- 2°C / -7°C
- 18mm total
- 7.7h sun/day
February
Very Cold0°Cavg
- 5°C / -5°C
- 26mm total
- 8.4h sun/day
March
Cold6°Cavg
- 11°C / 0°C
- 43mm total
- 9.1h sun/day
April
Fresh12°Cavg
- 18°C / 6°C
- 64mm total
- 9.3h sun/day
May
Comfortable17°Cavg
- 23°C / 12°C
- 106mm total
- 10.0h sun/day
June
Warm22°Cavg
- 27°C / 17°C
- 115mm total
- 9.9h sun/day
July
Warm25°Cavg
- 29°C / 22°C
- 315mm total
- 8.2h sun/day
August
Warm26°Cavg
- 29°C / 23°C
- 257mm total
- 9.2h sun/day
September
Warm21°Cavg
- 25°C / 17°C
- 134mm total
- 8.6h sun/day
October
Comfortable14°Cavg
- 19°C / 9°C
- 76mm total
- 8.3h sun/day
November
Cold7°Cavg
- 11°C / 2°C
- 59mm total
- 7.2h sun/day
December
Very Cold-1°Cavg
- 3°C / -5°C
- 26mm total
- 7.2h sun/day
Plan your trip to South Korea
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