Average data for 10 years
1 September
Sunday
+24°
+20°
2 September
Monday
+23°
+19°
3 September
Tuesday
+23°
+18°
4 September
Wednesday
+24°
+19°
5 September
Thursday
+22°
+19°
6 September
Friday
+23°
+17°
7 September
Saturday
+23°
+18°
8 September
Sunday
+22°
+18°
9 September
Monday
+21°
+18°
10 September
today
+21°
+17°
11 September
tomorrow
+22°
+17°
12 September
Thursday
+21°
+16°
13 September
Friday
+22°
+17°
14 September
Saturday
+22°
+17°
15 September
Sunday
+19°
+16°
16 September
Monday
+19°
+15°
17 September
Tuesday
+20°
+15°
18 September
Wednesday
+19°
+15°
19 September
Thursday
+19°
+16°
20 September
Friday
+20°
+16°
21 September
Saturday
+21°
+17°
22 September
Sunday
+19°
+16°
23 September
Monday
+21°
+17°
24 September
Tuesday
+19°
+16°
25 September
Wednesday
+18°
+14°
26 September
Thursday
+19°
+15°
27 September
Friday
+21°
+17°
28 September
Saturday
+19°
+16°
29 September
Sunday
+17°
+16°
30 September
Monday
+16°
+14°
Cities with similar weather in September
Bulgaria
Varna
Montenegro
Podgorica
Canada
Toronto
Bulgaria
The Golden Sands
United States
Chicago
In September, the weather in Boston is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Boston has 14 sunny, 9 partly cloudy, and 7 rainy days in September. The rains are usually heavy. September as well as August is considered the most comfortable time to visit Boston.