About Kaiyuan, Yunnan's Climate & Weather History

With a population of around 198,000, Kaiyuan sits in Yunnan, China. The city operates in the China Standard Time zone.

In 2025, Kaiyuan recorded an average annual temperature of 67°F. The hottest temperatures reached 94°F in April; the coolest were 35°F in January. Total precipitation for the year was 58 inches, with the wettest month being July.