When to go · Seoul
Seoul, month by month
The best months for Seoul: Apr, May, Oct. Months to avoid: Jul, Aug.
Month by month
- JanuaryMixedVery cold and dry; check Seollal dates.2 °C (36 °F) / -6 °C (21 °F), 8 rain days36 °F (2 °C) / 21 °F (-6 °C), 8 rain daysCrowds: Low · 1 festival or holiday
- FebruaryMixedCold; Seollal closures some years.5 °C (41 °F) / -4 °C (25 °F), 7 rain days41 °F (5 °C) / 25 °F (-4 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
- MarchMixedCold mornings; yellow dust on some days.11 °C (52 °F) / 1 °C (34 °F), 8 rain days52 °F (11 °C) / 34 °F (1 °C), 8 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGreatBlossoms and mild; palaces are busy.18 °C (64 °F) / 7 °C (45 °F), 9 rain days64 °F (18 °C) / 45 °F (7 °C), 9 rain daysCrowds: High · 4 festivals or holidays
- MayGreatWarm and dry; a good month.24 °C (75 °F) / 13 °C (55 °F), 10 rain days75 °F (24 °C) / 55 °F (13 °C), 10 rain daysCrowds: High · 5 festivals or holidays
- JuneMixedWarming; monsoon rain starts late in the month.28 °C (82 °F) / 18 °C (64 °F), 11 rain days82 °F (28 °C) / 64 °F (18 °C), 11 rain daysCrowds: Medium · 2 festivals or holidays
- JulyAvoidMonsoon rain, heat and humidity.29 °C (84 °F) / 22 °C (72 °F), 17 rain days84 °F (29 °C) / 72 °F (22 °C), 17 rain daysCrowds: High · 3 festivals or holidays
- AugustAvoidHottest and most humid; typhoons possible.30 °C (86 °F) / 23 °C (73 °F), 15 rain days86 °F (30 °C) / 73 °F (23 °C), 15 rain daysCrowds: High · 2 festivals or holidays
- SeptemberMixedStill warm; Chuseok some years.26 °C (79 °F) / 18 °C (64 °F), 9 rain days79 °F (26 °C) / 64 °F (18 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatBest month for walking; autumn colour.20 °C (68 °F) / 10 °C (50 °F), 6 rain days68 °F (20 °C) / 50 °F (10 °C), 6 rain daysCrowds: High · 4 festivals or holidays
- NovemberGoodCool and dry.12 °C (54 °F) / 3 °C (37 °F), 9 rain days54 °F (12 °C) / 37 °F (3 °C), 9 rain daysCrowds: Medium · 2 festivals or holidays
- DecemberMixedCold; short days.4 °C (39 °F) / -3 °C (27 °F), 8 rain days39 °F (4 °C) / 27 °F (-3 °C), 8 rain daysCrowds: Medium · 2 festivals or holidays
Compare two months
Weather, crowds and prices for any two months in Seoul, side by side.
Verdict
Apr: Great
May: Great
Daytime high
Apr: 18 °C (64 °F)64 °F (18 °C)
May: 24 °C (75 °F)75 °F (24 °C)
Night low
Apr: 7 °C (45 °F)45 °F (7 °C)
May: 13 °C (55 °F)55 °F (13 °C)
Rain days
Apr: 9 (better)
May: 10
Crowds
Apr: High
May: High
Prices
Apr: High
May: High
Festivals listed
Apr: 4
May: 5
April: Blossoms and mild; palaces are busy.
May: Warm and dry; a good month.
Seoul: figures are long-term averages from this guide, not a forecast.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.