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