San Sebastiano, in Lombardy, Italy, is home to roughly 23,200 people in the Central European time zone at 45.7°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, San Sebastiano recorded a mean annual temperature of 55°F, ranging from 24°F lows in November to 91°F highs in June, with about 63 inches of precipitation across the year.
View historical weather for San Sebastiano · More cities in Lombardy