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