Similar Climates › City Pairings › Changsha ≈ Osaka
City Pairings
close match
Changsha, China and Osaka, Japan are a close climate match — 2,250 km (1,398 mi) apart. Changsha is Köppen zone Cfa; Osaka is Cfa.
See Changsha on the interactive map →Changsha and Osaka both sit in the humid subtropical (Cfa) zone, so their seasonal arcs line up. They sit only about 2,250 km (1,398 mi) apart — a short hop on the atlas for a climate match this close.
It is a close match: day-to-day weather in Osaka should feel familiar if you know Changsha. Temperatures stay tight: January means differ by 0°C (Osaka warmer); July by 0°C (Osaka cooler). Rainfall shifts more: Osaka is 45 mm wetter in July, and 20 mm drier in January.
Sunshine: Osaka averages 8.6 hours a day across the two months vs 7.1 in Changsha (1.5 h/day more; January 7.6 h vs 4.4 h, July 9.5 h vs 9.8 h). Air quality: mean PM2.5 is 18 µg/m³ in Osaka vs 41 in Changsha (lower by 22 µg/m³). Dew points differ modestly (January -1°C vs 2°C; July 21°C vs 24°C).
January & July · °C and mm
Compare Changsha and Osaka month by month on the interactive map →
See Osaka's climate twin on its own page.
On Similar Climates, Osaka, Japan is the closest distant match for Changsha, China — scored close, about 2,250 km (1,398 mi) away.
Changsha and Osaka are separated by roughly 2,250 km (1,398 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 humid subtropical (Cfa).
Changsha has a humid subtropical climate (Cfa). January averages a high of 8°C and a low of 2°C with 65 mm of rain; July averages 33°C / 26°C and 110 mm.
Changsha averages about 4.4 hours of sunshine a day in January and 9.8 hours in July.
January PM2.5 averages about 60.8 µg/m³ (US AQI 143); July averages 20.4 µg/m³ (US AQI 78).
Other close climate matches for Changsha: Nagoya (fair), Tokyo (loose), New York City (loose).
All humid subtropical (Cfa) cities on Similar Climates →
Explore Changsha and Osaka on the interactive map →