With a population of around 7,400, Cohasset sits in Massachusetts, United States. The city operates in the Eastern Time Zone.
Recent weather here gives a sense of typical conditions: in 2025, Cohasset recorded a mean annual temperature of 51°F, ranging from 9°F lows in January to 97°F highs in June, with about 46 inches of precipitation across the year.
View historical weather for Cohasset · More cities in Massachusetts