Boston in March
In March, Boston averages 7°C (45°F) during the day and -1°C (30°F) at night, with around 11 days of rain (104 mm total).
ShoulderConditions are cold — pack winter layers. Plan for unsettled weather and bring rain gear. Snowfall occurs on roughly 5 days.
March in Boston is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How March compares to the rest of the year in Boston
March is in the middle of the year for warmth in Boston (9th of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 8°C below the annual average (15°C). March runs 4°C warmer than February (3°C) and warms a further 7°C into April (14°C).
March sunrise & sunset in Boston
Times shown for Boston local time (America/New_York), calculated for the 15th of March. They shift by a few minutes day to day across the month.
Photography light in Boston — March
Golden-hour and blue-hour windows for the 15th of March, in Boston's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Boston in March
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on March's tier (Shoulder) and Boston's popularity.
Crowds & pricing — March in Boston
Boston is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — March in Boston
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
🌨 Some snow — Boston in March
Gear: Occasional snow, often slushy by afternoon. Waterproof boots, warm coat, hat and gloves.
Sea temperature in Boston — March
Across the year Boston's sea swings from 3.5°C (February) to 19.6°C (August) — March sits at 4.6°C.
Boston in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 2°C / 36°F | -6°C / 21°F | 88 mm | 10 | 10 |
| February | 3°C / 37°F | -5°C / 23°F | 88 mm | 10 | 9 |
| March | 7°C / 45°F | -1°C / 30°F | 104 mm | 11 | 5 |
| April | 14°C / 57°F | 4°C / 39°F | 92 mm | 11 | 1 |
| May | 19°C / 66°F | 9°C / 48°F | 88 mm | 11 | 0 |
| June | 25°C / 77°F | 15°C / 59°F | 95 mm | 11 | 0 |
| July | 28°C / 82°F | 18°C / 64°F | 84 mm | 9 | 0 |
| August | 27°C / 81°F | 17°C / 63°F | 94 mm | 9 | 0 |
| September | 23°C / 73°F | 13°C / 55°F | 85 mm | 9 | 0 |
| October | 17°C / 63°F | 7°C / 45°F | 96 mm | 10 | 0 |
| November | 11°C / 52°F | 2°C / 36°F | 108 mm | 11 | 1 |
| December | 5°C / 41°F | -3°C / 27°F | 106 mm | 12 | 7 |
Other cities with similar March weather
🌍 See the full ranked list of climate twins for Boston in March →
Frequently asked questions
How hot is Boston in March?
In March, Boston averages a high of 7°C (45°F) and a low of -1°C (30°F) — generally cold.
Does it rain a lot in Boston in March?
March can be fairly wet in Boston, with about 11 rainy days on average and roughly 5 snow days.
Is March a good time to visit Boston?
March is cold. It suits travelers who are comfortable with cold weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Boston in March?
Pack heavy winter layers, a coat, hat and gloves, plus a compact umbrella or rain jacket. See the full March packing list for Boston for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.