About Kisai, Saitama's Climate & Weather History

With a population of around 20,900, Kisai sits in Saitama, Japan. The city operates in the Japan Standard Time zone.

In 2025, Kisai recorded an average annual temperature of 61°F. The hottest temperatures reached 104°F in August; the coolest were 25°F in February. Total precipitation for the year was 49 inches, with the wettest month being May. Snowfall for the year totaled approximately 5 inches.