Climate guide for Boston, United States

Boston in January

Weather, crowds & best time to visit

How to read the score (0–10)
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January · United States

Best time to visit Boston in January Weather, crowds & prices

Weather in Boston in January

Average temperature -2°C, 152 mm of rain, about 0 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

January score

1.9/10

Ranked #12 of 12 months

Full year for Boston
Avg temp
-2°C
Rainfall
152 mm
Humidity
88%
Days with 6h+ sun
0
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

January in Boston scores 1.9/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around -2°C, 152 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.

Freedom Trail bricks, harbor ferries, and campus greens feel finest May through September.

January in Boston — off-season conditions

January averages -2°C (28°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

At 152 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with almost no days with 6+ hours of sunshine and 9.2 hours of daylight.

It scores 1.9/10 here, 12th of 12 months, against 8.2/10 in the destination's best month.

Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella.

Plan for low-season pricing, with crowds are light for this destination.

Flexible dates? May scores 6.3 points higher here — enough to change the trip.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Boston in January?
In January, Boston averages -2°C, 152 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 1.9/10.
Is January a good time to visit Boston?
January earns a 1.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Boston in January?
Expect about 152 mm of rain in January. Average humidity is 88% and there are about 0 days with 6+ hours of sunshine.

Curated in Boston

Tickets & experiences

Things to do in Boston

Boston, United States. Live activities and tours from GetYourGuide, matched to this destination.