September · United States
Best time to visit Boston in SeptemberWeather, crowds & prices
September score
7.2/10
Ranked #4 of 12 months
- Avg temp
- 18°C
- Rainfall
- 109 mm
- Humidity
- 77%
- Sunny days
- 13
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Boston scores 7.2/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 18°C, 109 mm of rain, and roughly 13 sunny days this month.
Freedom Trail bricks, harbor ferries, and campus greens feel finest May through September.
Frequently asked
- What is the weather like in Boston in September?
- In September, Boston averages 18°C, 109 mm of rain, and about 13 sunny days. Its climate-comfort score is 7.2/10.
- Is September a good time to visit Boston?
- September earns a 7.2/10 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 September?
- Expect about 109 mm of rain in September. Average humidity is 77% and there are about 13 sunny days.
Curated in Boston
Tickets & experiences
Things to do in Boston
Boston, United States. Live activities and tours from GetYourGuide, matched to this destination.