Early spring · Weather & things to do
Boston in March
Boston warms up: highs climb to 43°F (6°C), from 36°F in February, with lows of 27°F (-3°C) and about 4.3 in (110 mm) of rain or snow.
Our comfort score puts it mid-table at 46/100, 9th of 12.
- Avg high
- 43°F (6°C)
- Avg low
- 27°F (-3°C)
- Rain or snow
- 4.3 in (110 mm)
- Humidity
- 82%
- Cloud cover
- 61%
- Daylight
- ~11 h 39 min
- Comfort score
- 46/100 · Fair
What March feels like
Afternoons only reach about 43°F (6°C), so plan on a warm jacket.
Average lows of 27°F (-3°C) mean frosty nights and icy mornings.
About 4.3 in (110 mm) of rain or snow falls in the month, and with lows well below freezing, much of it may come as snow.
Plan around March
March sits mid-table; the best months are May and July – October.
- Last month with freezing nights on average; by April, lows rise to 37°F.
- Comfort holds steady from February (44 → 46/100).
- Our Boston to Portland route recommends May – Oct, so March falls outside its suggested window.
What to pack for March
- Insulated jackethighs only 43°F
- Hat, gloves and thermal base layerslows around 27°F
- Insulated, waterproof bootssnow is likely on some days
- Waterproof outer layerabout 4.3 in of rain or snow
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Boston in March
A mixed month: these picks balance outdoor stops with indoor fallbacks.
Freedom Trail
2.5-mile red-brick line past 16 Revolutionary-era sites.
Boston Public Garden
Victorian garden with the swan boats and lagoon next to the Common.
Union Oyster House
America's oldest operating restaurant (1826), serving oysters at a raw bar.
Fenway Park
Baseball's oldest ballpark (1912); take a tour or catch a game.
Warren Tavern
Charlestown tavern from 1780 near the end of the Freedom Trail.
Nearby in March
- Portsmouth in March~51 mi · highs 40°F, 4.8 in rain · 2°C (3°F) cooler by day, about as wet
- New Hampshire in March~63 mi · highs 42°F, 3.5 in rain or snow · similar daytime temperatures, drier
- Portland, Maine in March~98 mi · highs 38°F, 4.3 in rain · 3°C (5°F) cooler by day, about as wet
- Woodstock in March~114 mi · highs 39°F, 3.0 in rain or snow · 2°C (4°F) cooler by day, drier
These averages also cover Downtown Boston & the Waterfront and South Boston & Castle Island.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Boston in March: quick answers
Is March a good time to visit Boston?
It's middling, scoring 46/100. The best months are May and July – October, at up to 83. Expect highs of 43°F (6°C) and 4.3 in (110 mm) of rain or snow. Our Boston to Portland route recommends May – Oct, so March is outside its suggested window.
How cold is Boston in March?
Average highs are 43°F (6°C) and average lows 27°F (-3°C), making it the 4th-coldest month by daytime highs, with nights below freezing on average.
Does it snow a lot in Boston in March?
Some: about 4.3 in (110 mm) of rain or snow falls across March on average, the 4th-wettest month of the year. With temperatures this low, much of it may fall as snow. The annual total is about 47.5 in (1207 mm).
What should I pack for Boston in March?
Bring insulated jacket (highs only 43°F), hat, gloves and thermal base layers (lows around 27°F), insulated, waterproof boots (snow is likely on some days), waterproof outer layer (about 4.3 in of rain or snow) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Boston in March?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.