Ottawa Weather Conditions
Current Temperature Level
35 °C
58 AQI
Air quality index is: Moderate
Last Updated: 2025-08-12 16:30 (Local Time)
MapOttawa
Ottawa Weather Parameters
26 km/h
8 m/s
207° SSW
62 %
24 km
0 mm
1013 mb
UV Index4
Suggestions for
TodayOttawa12 Aug.
Heat Stroke• Avoid Outdoor 
Clothing• Breathable
Driving• Enjoy Driving
Sunscreen• ApplyTrending in Canada
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Ottawa 10-Days Weather Forecast
Today
28°C
61 %Wednesday
26°C76 %Thursday
24°C61 %Friday
21°C48 %Saturday
23°C44 %Sunday
22°C67 %Monday
20°C56 %Tuesday
19°C50 %Wednesday
18°C47 %Thursday
18°C43 %Patchy rain nearby
Occasional light rain is expected and humidity will be 61%, with winds at 26.3 km/h.35°C / 19°C
Humi.61 %
Prec.1.81 mm
Sunrise
06:00 AM14hrs 14min
Sunset
08:14 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
25 °C
68 %
0
8.3 kmph / SSW
Clear 
Feels 26.3 °C
Cover 0 %
Visibility 10 km
1 AM
Clear
24 °C
70 %
0
7.2 kmph / SSW
Clear Feels 25.7 °C
Cover 0 %
Visibility 10 km
2 AM
Clear
23 °C
71 %
0
5.4 kmph / SSW
Clear Feels 25.2 °C
Cover 0 %
Visibility 10 km
3 AM
Clear
23 °C
73 %
0
5 kmph / SSW
Clear Feels 24.9 °C
Cover 0 %
Visibility 10 km
4 AM
Clear
21 °C
74 %
0
4.3 kmph / S
Clear Feels 21.3 °C
Cover 0 %
Visibility 10 km
5 AM
Clear
20 °C
73 %
0
5.4 kmph / S
Clear Feels 20.3 °C
Cover 0 %
Visibility 10 km
6 AM
Clear
20 °C
75 %
0
5.8 kmph / S
Clear Feels 20 °C
Cover 0 %
Visibility 10 km
7 AM
Sunny
21 °C
74 %
0.2
5 kmph / S
SunnyFeels 21.3 °C
Cover 0 %
Visibility 10 km
8 AM
Sunny
23 °C
67 %
0.8
7.9 kmph / SSW
SunnyFeels 24.5 °C
Cover 0 %
Visibility 10 km
9 AM
Sunny
26 °C
62 %
1.9
9.4 kmph / SW
SunnyFeels 27 °C
Cover 0 %
Visibility 10 km
10 AM
Sunny
30 °C
57 %
2.7
11.2 kmph / SW
SunnyFeels 33.1 °C
Cover 0 %
Visibility 10 km
11 AM
Sunny
32 °C
54 %
4.7
13.3 kmph / SW
SunnyFeels 37.5 °C
Cover 0 %
Visibility 10 km
12 PM
Sunny
33 °C
51 %
6.8
14.8 kmph / SSW
SunnyFeels 37 °C
Cover 0 %
Visibility 10 km
1 PM
Partly Cloudy
33 °C
47 %
7.4
16.9 kmph / SSW
Partly Cloudy Feels 36.7 °C
Cover 57 %
Visibility 10 km
2 PM
Cloudy
33 °C
47 %
6.7
16.9 kmph / SSW
Cloudy Feels 36.9 °C
Cover 74 %
Visibility 10 km
3 PM
Partly Cloudy
34 °C
51 %
5.5
17.6 kmph / SSW
Partly Cloudy Feels 39.6 °C
Cover 39 %
Visibility 10 km
4 PM
Partly cloudy
35 °C
39 %
3.6
26.3 kmph / SSW
Partly cloudyFeels 38.1 °C
Cover 62 %
Visibility 24 km
5 PM
Sunny
33 °C
49 %
0.8
20.5 kmph / SSW
SunnyFeels 37.2 °C
Cover 0 %
Visibility 10 km
6 PM
Sunny
33 °C
49 %
0.2
20.5 kmph / SSW
SunnyFeels 36.1 °C
Cover 0 %
Visibility 10 km
7 PM
Sunny
32 °C
52 %
0.1
18.4 kmph / SW
SunnyFeels 34.6 °C
Cover 1 %
Visibility 10 km
8 PM
Sunny
30 °C
56 %
0
12.6 kmph / SW
SunnyFeels 33.3 °C
Cover 8 %
Visibility 5 km
9 PM
Thundery outbreaks in nearby
29 °C
61 %
0
10.4 kmph / SSW
Thundery outbreaks in nearbyFeels 32 °C
Cover 34 %
Visibility 9 km
10 PM
Partly Cloudy
28 °C
65 %
0
10.4 kmph / WSW
Partly Cloudy Feels 30.6 °C
Cover 55 %
Visibility 9 km
11 PM
Light rain shower
27 °C
71 %
0
10.1 kmph / WSW
Light rain showerFeels 29.3 °C
Cover 77 %
Visibility 10 km
Today
28°C61 %Wednesday
26°C76 %Thursday
24°C61 %Friday
21°C48 %Saturday
23°C44 %Sunday
22°C67 %Monday
20°C56 %Tuesday
19°C50 %Wednesday
18°C47 %Thursday
18°C43 %Temp33 °C
ConditionSunny
Humidity49 %
Feels37.2 °C
Cover0 %
Visibility10 km
Wind Speed & Dir.20.5 kmph / SSW
UV0.8
Ottawa 30-Days (August 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Fri.
26°12 °C
2Sat.
31°12 °C
3Sun.
30°15 °C
4Mon.
30°18 °C
5Tue.
30°16 °C
6Wed.
30°15 °C
7Thu.
33°16 °C
8Fri.
34°16 °C
9Sat.
32°18 °C
10Sun.
36°22 °C
11Mon.
36°22 °C
12Today
35°19 °C
13Wed.
32°20 °C
14Thu.
29°20 °C
15Fri.
29°15 °C
16Sat.
33°12 °C
17Sun.
27°18 °C
18Mon.
23°17 °C
19Tue.
26°13 °C
20Wed.
25°11 °C
21Thu.
25°11 °C
22Fri.
30°17 °C
23Sat.
25°12 °C
24Sun.
19°10 °C
25Mon.
21°8 °C
26Tue.
24°15 °C
27Wed.
23°14 °C
28Thu.
23°14 °C
29Fri.
24°14 °C
30Sat.
24°14 °C
31Sun.
22°14 °C
AugustWeather Overview
No. of days:
Sunny
14
Cloudy
4
Rainy
13
Snowy
0
The monthly weather averages in Ottawa consist of 14 sunny days, 4 cloudy days, 13 rainy days, and 0 snowy days.
Canada's Hottest Cities - August 2025
1.
Fredericton, Canada
Sunny
42%
2.5
5 kmph / SW
2.
Moncton, Canada
Sunny
37%
2.2
11.9 kmph / S
3.
Bathurst, Canada
Sunny
37%
2.6
6.5 kmph / WSW
4.
Sainte Cecile de Masham, Canada
Partly cloudy
42%
3.7
22.3 kmph / SSW
5.
Ottawa, Canada
Partly cloudy
39%
3.6
26.3 kmph / SSW
6.
Gatineau, Canada
Partly cloudy
39%
3.6
26.3 kmph / SSW
7.
Saint Raymond, Canada
Cloudy
37%
3.2
18 kmph / S
8.
Miramichi, Canada
Sunny
41%
1.6
10.8 kmph / WSW
9.
Cornwall, Canada
Partly Cloudy
38%
3.7
13.3 kmph / SSW
10.
Montreal, Canada
Sunny
36%
3.5
6.5 kmph / SSW
Last Updated: 12 Aug 2025, 09:12 PM
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