Similar Climates › City Pairings › Seoul ≈ Chengdu
City Pairings
loose match
Seoul, South Korea and Chengdu, China are a loose climate match — 2,237 km (1,390 mi) apart. Seoul is Köppen zone Cwa; Chengdu is Cwa.
See Seoul on the interactive map →Seoul and Chengdu both sit in the dry-winter subtropical (Cwa) zone, so their seasonal arcs line up. They sit only about 2,237 km (1,390 mi) apart — a short hop on the atlas for a climate match this close.
It is a loose match: useful as a climate analogue for Seoul, though not a perfect copy. January means differ by 8°C (Chengdu warmer); July within half a degree. Rainfall shifts more: Chengdu is 165 mm drier in July.
Sunshine: Chengdu averages 6.7 hours a day across the two months vs 8.0 in Seoul (1.3 h/day less; January 4.9 h vs 7.8 h, July 8.4 h vs 8.2 h). Air quality: mean PM2.5 is 67 µg/m³ in Chengdu vs 29 in Seoul (higher by 38 µg/m³). Humidity: dew point in Chengdu runs about 11°C higher in January (2°C vs -9°C), so the air feels muggier.
January & July · °C and mm
Compare Seoul and Chengdu month by month on the interactive map →
See Chengdu's climate twin on its own page.
On Similar Climates, Chengdu, China is the closest distant match for Seoul, South Korea — scored loose, about 2,237 km (1,390 mi) away.
Seoul and Chengdu are separated by roughly 2,237 km (1,390 mi) on the great-circle route.
Yes — both cities are in the same hemisphere, so summer and winter fall in the same calendar months.
Yes — both are dry-winter subtropical (Cwa).
Seoul has a dry-winter subtropical climate (Cwa). January averages a high of 2°C and a low of -6°C with 17 mm of rain; July averages 29°C / 23°C and 395 mm.
Seoul averages about 7.8 hours of sunshine a day in January and 8.2 hours in July.
January PM2.5 averages about 32.5 µg/m³ (US AQI 95); July averages 26 µg/m³ (US AQI 87).
Other close climate matches for Seoul: Guiyang (loose), Nanjing (loose), Nanning (loose).
All dry-winter subtropical (Cwa) cities on Similar Climates →
Explore Seoul and Chengdu on the interactive map →