Boston Weather in March
8.3°C high · -1.8°C low · 104 mm rain · 5.6h sun
Mar is a cool month in Boston — not peak season, but a good time to avoid crowds.
March at a glance
| Metric | Value |
|---|---|
| Average high | 8.3°C |
| Average low | -1.8°C |
| Rainfall | 104 mm |
| Sunshine | 5.6 hours/day |
| Daylight | 11.7 hours |
What to pack in March
Pack a warm coat and layers, plus a raincoat and umbrella for Boston in March.
Boston weather by month
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Frequently asked questions
What is the weather in Boston in March?
Highs of 8.3°C and lows of -1.8°C, with about 104 mm of rain and 5.6 hours of sunshine per day.
Is March a good time to visit Boston?
Mar is a cool month in Boston — not peak season, but a good time to avoid crowds.
What to do in Boston · Best time to visit Boston
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.