Sayama, in Saitama, Japan, is home to roughly 161,000 people in the Japan Standard Time zone at 35.9°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Sayama recorded a mean annual temperature of 62°F, ranging from 24°F lows in January to 108°F highs in August, with about 45 inches of precipitation across the year.