Normally, the average daily temperature in Boston in the time of September is 17 with a high of 23 and low being 14 celsius. Discover even more info below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 17 |
| High Temperature | 23 |
| Low Temperature | 14 |
| Sunshine Per Day | 9 |
Useful Links: Boston Weather: Average Weather & Yearly Climate