When to go · Sejong City
Sejong City, month by month
The best months for Sejong City: Apr, May, Oct. Months to avoid: Jan, Feb, Jul, Aug.
Month by month
- JanuaryAvoidListed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, -8 °C (18 °F) nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F (-8 °C) nights).4 °C (39 °F) / -8 °C (18 °F), 7 rain days39 °F (4 °C) / 18 °F (-8 °C), 7 rain daysCrowds: Low · 1 festival or holiday
- FebruaryAvoidListed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, -8 °C (18 °F) nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F (-8 °C) nights).7 °C (45 °F) / -5 °C (23 °F), 6 rain days45 °F (7 °C) / 23 °F (-5 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- MarchMixedOutside the best window (Apr–May, Oct). Across South Korea: Cold start, fine dust peaks; cherry blossom reaches Jeju and Busan late in the month.13 °C (55 °F) / -1 °C (30 °F), 7 rain days55 °F (13 °C) / 30 °F (-1 °C), 7 rain daysCrowds: Medium
- AprilGreatInside Sejong City's best window: Apr–May, Oct.20 °C (68 °F) / 5 °C (41 °F), 7 rain days68 °F (20 °C) / 41 °F (5 °C), 7 rain daysCrowds: High
- MayGreatInside Sejong City's best window: Apr–May, Oct.25 °C (77 °F) / 11 °C (52 °F), 8 rain days77 °F (25 °C) / 52 °F (11 °C), 8 rain daysCrowds: High
- JuneGoodOutside the best window (Apr–May, Oct). Across South Korea: Warm and green until the monsoon arrives late in the month.28 °C (82 °F) / 17 °C (63 °F), 9 rain days82 °F (28 °C) / 63 °F (17 °C), 9 rain daysCrowds: Medium
- JulyAvoidListed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, -8 °C (18 °F) nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F (-8 °C) nights).29 °C (84 °F) / 21 °C (70 °F), 15 rain days84 °F (29 °C) / 70 °F (21 °C), 15 rain daysCrowds: High
- AugustAvoidListed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, -8 °C (18 °F) nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F (-8 °C) nights).30 °C (86 °F) / 21 °C (70 °F), 14 rain days86 °F (30 °C) / 70 °F (21 °C), 14 rain daysCrowds: High
- SeptemberMixedOutside the best window (Apr–May, Oct). Across South Korea: Heat eases; typhoon risk remains and Chuseok shuts the country for 3 days in many years.26 °C (79 °F) / 15 °C (59 °F), 9 rain days79 °F (26 °C) / 59 °F (15 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Sejong City's best window: Apr–May, Oct.21 °C (70 °F) / 7 °C (45 °F), 6 rain days70 °F (21 °C) / 45 °F (7 °C), 6 rain daysCrowds: High · 1 festival or holiday
- NovemberGoodOutside the best window (Apr–May, Oct). Across South Korea: Colour moves south to Seoul's palaces early in the month; cold arrives by the end.13 °C (55 °F) / 1 °C (34 °F), 7 rain days55 °F (13 °C) / 34 °F (1 °C), 7 rain daysCrowds: Medium
- DecemberGoodOutside the best window (Apr–May, Oct). Across South Korea: Cold and dry; Christmas markets and lights in Seoul; ski season opens.6 °C (43 °F) / -6 °C (21 °F), 7 rain days43 °F (6 °C) / 21 °F (-6 °C), 7 rain daysCrowds: Medium
Compare two months
Weather, crowds and prices for any two months in Sejong City, side by side.
Verdict
Apr: Great
May: Great
Daytime high
Apr: 20 °C (68 °F)68 °F (20 °C)
May: 25 °C (77 °F)77 °F (25 °C)
Night low
Apr: 5 °C (41 °F)41 °F (5 °C)
May: 11 °C (52 °F)52 °F (11 °C)
Rain days
Apr: 7 (better)
May: 8
Crowds
Apr: High
May: High
Prices
Apr: High
May: High
Festivals listed
Apr: 0
May: 0
April: Inside Sejong City's best window: Apr–May, Oct.
May: Inside Sejong City's best window: Apr–May, Oct.
Sejong City: figures are long-term averages from this guide, not a forecast.