Lak Si, in Bangkok, Thailand, is home to roughly 110,000 people in the Indochina time zone at 13.9°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Lak Si recorded a mean annual temperature of 82°F, ranging from 62°F lows in November to 103°F highs in April, with about 72 inches of precipitation across the year.