Weather in Boston in September
The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.
Climate Overview
September is an excellent time to visit Boston. Boston has a Cool climate with average yearly highs of 24°C, lows of 14°C, and approximately 6 rainy days per month.
24°C
14°C
6days
12.6h
Is September a good time to visit Boston?
The weather is near-perfect with ideal temperatures and minimal rain.
Daylight
6:24 AM
6:58 PM
Weather by Month
| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 5°C | -3°C | 7 | Good |
| February | 5°C | -3°C | 10 | Good |
| March | 10°C | 0°C | 12 | Good |
| April | 10°C | 2°C | 12 | Good |
| May | 19°C | 8°C | 8 | Excellent (best) |
| June | 26°C | 16°C | 9 | Excellent (best) |
| July | 29°C | 20°C | 11 | Good |
| August | 29°C | 19°C | 10 | Good |
| September | 24°C | 14°C | 6 | Excellent (best) |
| October | 17°C | 8°C | 9 | Excellent (best) |
| November | 13°C | 4°C | 9 | Good |
| December | 5°C | -3°C | 9 | Good |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
What to Pack for September
Layers, a light jacket, comfortable walking shoes, and an umbrella.
Planning a trip to Boston?
Common Questions
Is September a good time to visit Boston? +
September is typically Excellent for visiting Boston, with average highs of 24°C and around 6 rainy days.
What should I pack for Boston in September? +
With highs of 24°C and lows of 14°C in {month}, we recommend: Layers, a light jacket, comfortable walking shoes, and an umbrella.
Does it rain a lot in Boston in September? +
Boston typically sees around 6 rainy days in September.
How many hours of daylight are there in Boston in September? +
In September, Boston gets approximately 12.6 hours of daylight per day.
Is September peak season in Boston? +
Yes, September is peak season in Boston. Expect higher prices and more crowds, but also the best weather.
What is the best month to visit Boston? +
The best months to visit Boston are May, June, September, October, when the weather is optimal for sightseeing.
More Boston Guides
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Itineraries
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Overview
Complete travel guide for Boston: top things to do, itineraries, and typical costs.