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