Weather in Ottawa in August

The weather in Ottawa in August varies radically. Daytime is relatively hot since temperatures get higher than 27 degrees, while the nights are much colder and there are no more than 14 degrees. Therefore, it is recommended to pack for both warm and chilly conditions
Avg Temp
14° - 27°
Avg Rainy Days
16
Avg Dry Days
15
Avg Snow Days
0
Full weather report for today ››

Weather forecast for the next 14 days ››

Weather Facts - Ottawa in August

* The warmest temperature recorded in in August is 37°C
* The coldest temperature recorded in Ottawa in August is 2°C
* The average rainfall in Ottawa in August is 81 mm

Yearly Average for Ottawa

Max Temp
Min Temp
Rainy Days
Jan.
(-4°)
(-14°)
20
Feb.
(-2°)
(-13°)
15
March
3°
(-8°)
16
April
13°
0°
16
May
20°
7°
19
June
26°
13°
18
July
27°
15°
18
August
27°
14°
16
Sep.
22°
10°
17
Oct.
15°
3°
18
Nov.
7°
(-3°)
20
Dec.
(-1°)
(-10°)
19

Average Temperature in Ottawa