Average data for 10 years
1 September
Sunday
+23°
+18°
2 September
Monday
+23°
+17°
3 September
Tuesday
+23°
+17°
4 September
Wednesday
+21°
+16°
5 September
Thursday
+21°
+15°
6 September
Friday
+22°
+16°
7 September
Saturday
+20°
+16°
8 September
Sunday
+20°
+16°
9 September
Monday
+21°
+14°
10 September
Tuesday
+20°
+16°
11 September
today
+19°
+14°
12 September
tomorrow
+18°
+13°
13 September
Friday
+20°
+13°
14 September
Saturday
+18°
+15°
15 September
Sunday
+16°
+12°
16 September
Monday
+19°
+10°
17 September
Tuesday
+20°
+13°
18 September
Wednesday
+18°
+12°
19 September
Thursday
+19°
+12°
20 September
Friday
+21°
+16°
21 September
Saturday
+18°
+14°
22 September
Sunday
+19°
+14°
23 September
Monday
+20°
+14°
24 September
Tuesday
+19°
+13°
25 September
Wednesday
+20°
+13°
26 September
Thursday
+19°
+14°
27 September
Friday
+17°
+14°
28 September
Saturday
+17°
+13°
29 September
Sunday
+15°
+11°
30 September
Monday
+14°
+10°
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In September, the weather in Orillia is typically warm. Average daily high temperature in September is about 19 degrees above zero. On average, Orillia has 13 sunny, 9 rainy, 7 partly cloudy, and 1 cloudy day in September. The rains are usually heavy.