Avg weather in January
9 Hrs per day
0 mm per month
80 % avg
12 Mph avg

Boston Weather in January

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What’s the weather like in Boston in January?

Found in the state of Massachusetts in the northeastern United States, Boston is a coastal city with a continental climate. Summers are very warm, but things get very cold over winter. In January, the temperature’s usually below freezing, while there’s consistent rain all year round. If you visit Boston at this time, make sure you come prepared with thick winter clothes and plenty of warm layers, as well as a waterproof jacket in case of rain.


The average temperature in Boston in January is -2ºC, reaching highs of 2ºC and lows of -5ºC. With such freezing temperatures, don’t forget to bring your warmest winter coat, along with a hat, scarf and gloves. Around 90mm of rain’s expected over the course of ten wet days, although there’s still an average of six hours of daily sunshine at this time of year. The sea measures a chilly 5ºC in January.

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