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 nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F nights).4 °C / -8 °C, 7 rain days39 °F / 18 °F, 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 nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F nights).7 °C / -5 °C, 6 rain days45 °F / 23 °F, 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 / -1 °C, 7 rain days55 °F / 30 °F, 7 rain daysCrowds: Medium
- AprilGreatInside Sejong City's best window: Apr–May, Oct.20 °C / 5 °C, 7 rain days68 °F / 41 °F, 7 rain daysCrowds: High
- MayGreatInside Sejong City's best window: Apr–May, Oct.25 °C / 11 °C, 8 rain days77 °F / 52 °F, 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 / 17 °C, 9 rain days82 °F / 63 °F, 9 rain daysCrowds: Medium
- JulyAvoidListed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, -8 °C nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F nights).29 °C / 21 °C, 15 rain days84 °F / 70 °F, 15 rain daysCrowds: High
- AugustAvoidListed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, -8 °C nights).Listed as a month to avoid: Jul–Aug (heavy rain, 285 mm in July), late Jan–Feb (cold, 18 °F nights).30 °C / 21 °C, 14 rain days86 °F / 70 °F, 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 / 15 °C, 9 rain days79 °F / 59 °F, 9 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Sejong City's best window: Apr–May, Oct.21 °C / 7 °C, 6 rain days70 °F / 45 °F, 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 / 1 °C, 7 rain days55 °F / 34 °F, 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 / -6 °C, 7 rain days43 °F / 21 °F, 7 rain daysCrowds: Medium