Sarnia Weather Conditions
Current Temperature Level
32 °C
60 AQI
Air quality index is: Moderate
Last Updated: 2025-08-11 14:15 (Local Time)
MapSarnia
Sarnia Weather Parameters
18 km/h
6 m/s
217° SW
50 %
14 km
0 mm
1018 mb
UV Index8
Suggestions for
TodaySarnia11 Aug.
Hydration• Stay Hydrated
Clothing• Breathable
Driving• Enjoy Driving
Sunscreen• ApplyTrending in Canada
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Sarnia 10-Days Weather Forecast
Today
26°C
81 %Tuesday
26°C84 %Wednesday
22°C88 %Thursday
20°C72 %Friday
20°C73 %Saturday
25°C61 %Sunday
22°C80 %Monday
20°C61 %Tuesday
22°C46 %Wednesday
24°C55 %Patchy rain nearby
Occasional light rain is expected and humidity will be 81%, with winds at 22.7 km/h.33°C / 21°C
Humi.81 %
Prec.3.23 mm
Sunrise
06:31 AM14hrs 6min
Sunset
08:37 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
22 °C
89 %
0
17.3 kmph / S
Clear 
Feels 24.7 °C
Cover 0 %
Visibility 10 km
1 AM
Clear
22 °C
91 %
0
16.2 kmph / S
Clear Feels 21.7 °C
Cover 0 %
Visibility 10 km
2 AM
Clear
22 °C
93 %
0
15.5 kmph / S
Clear Feels 21.6 °C
Cover 0 %
Visibility 10 km
3 AM
Clear
22 °C
94 %
0
13.7 kmph / S
Clear Feels 24.8 °C
Cover 14 %
Visibility 10 km
4 AM
Cloudy
23 °C
88 %
0
12.6 kmph / SSW
Cloudy Feels 25.1 °C
Cover 77 %
Visibility 10 km
5 AM
Partly Cloudy
23 °C
86 %
0
11.5 kmph / SSW
Partly Cloudy Feels 24.9 °C
Cover 36 %
Visibility 9 km
6 AM
Clear
22 °C
91 %
0
10.8 kmph / SSW
Clear Feels 24.6 °C
Cover 8 %
Visibility 10 km
7 AM
Sunny
23 °C
93 %
0
11.5 kmph / S
SunnyFeels 25.1 °C
Cover 0 %
Visibility 10 km
8 AM
Sunny
24 °C
85 %
0.5
11.2 kmph / SSW
SunnyFeels 26.2 °C
Cover 0 %
Visibility 10 km
9 AM
Sunny
26 °C
77 %
1.4
13.3 kmph / SSW
SunnyFeels 27.9 °C
Cover 0 %
Visibility 10 km
10 AM
Sunny
29 °C
73 %
3
13 kmph / SSW
SunnyFeels 33.3 °C
Cover 0 %
Visibility 10 km
11 AM
Sunny
31 °C
70 %
4.9
13.7 kmph / SW
SunnyFeels 36.6 °C
Cover 0 %
Visibility 10 km
12 PM
Sunny
32 °C
66 %
6.7
16.9 kmph / SW
SunnyFeels 38.5 °C
Cover 0 %
Visibility 10 km
1 PM
Sunny
31 °C
63 %
7.8
17.3 kmph / SW
SunnyFeels 36.8 °C
Cover 0 %
Visibility 10 km
2 PM
Partly cloudy
32 °C
49 %
7.7
18 kmph / SW
Partly cloudyFeels 35.7 °C
Cover 50 %
Visibility 14 km
3 PM
Thundery outbreaks in nearby
30 °C
59 %
6.1
18.4 kmph / SSW
Thundery outbreaks in nearbyFeels 34 °C
Cover 38 %
Visibility 10 km
4 PM
Thundery outbreaks in nearby
28 °C
71 %
3.2
17.3 kmph / SSW
Thundery outbreaks in nearbyFeels 31.8 °C
Cover 61 %
Visibility 10 km
5 PM
Moderate or heavy rain shower
28 °C
82 %
1.8
19.8 kmph / SSW
Moderate or heavy rain showerFeels 31.3 °C
Cover 76 %
Visibility 10 km
6 PM
Thundery outbreaks in nearby
28 °C
81 %
1.2
22.7 kmph / S
Thundery outbreaks in nearbyFeels 31.2 °C
Cover 49 %
Visibility 10 km
7 PM
Thundery outbreaks in nearby
27 °C
83 %
0.4
20.5 kmph / SSW
Thundery outbreaks in nearbyFeels 30.4 °C
Cover 41 %
Visibility 10 km
8 PM
Sunny
26 °C
86 %
0
20.9 kmph / S
SunnyFeels 29 °C
Cover 17 %
Visibility 10 km
9 PM
Clear
25 °C
89 %
0
16.9 kmph / S
Clear Feels 27.8 °C
Cover 9 %
Visibility 10 km
10 PM
Clear
25 °C
91 %
0
14.4 kmph / SSW
Clear Feels 27 °C
Cover 4 %
Visibility 10 km
11 PM
Clear
24 °C
73 %
0
14 kmph / SSW
Clear Feels 26 °C
Cover 18 %
Visibility 10 km
Today
26°C81 %Tuesday
26°C84 %Wednesday
22°C88 %Thursday
20°C72 %Friday
20°C73 %Saturday
25°C61 %Sunday
22°C80 %Monday
20°C61 %Tuesday
22°C46 %Wednesday
24°C55 %Temp30 °C
ConditionThundery outbreaks in nearby
Humidity59 %
Feels34 °C
Cover38 %
Visibility10 km
Wind Speed & Dir.18.4 kmph / SSW
UV6.1
Sarnia 30-Days (August 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Fri.
25°15 °C
2Sat.
27°13 °C
3Sun.
28°13 °C
4Mon.
26°14 °C
5Tue.
29°16 °C
6Wed.
31°18 °C
7Thu.
30°17 °C
8Fri.
32°17 °C
9Sat.
33°19 °C
10Sun.
33°20 °C
11Today
31°19 °C
12Tue.
32°21 °C
13Wed.
27°20 °C
14Thu.
29°20 °C
15Fri.
29°21 °C
16Sat.
31°21 °C
17Sun.
25°20 °C
18Mon.
24°18 °C
19Tue.
24°15 °C
20Wed.
25°13 °C
21Thu.
27°14 °C
22Fri.
29°16 °C
23Sat.
31°21 °C
24Sun.
26°17 °C
25Mon.
25°17 °C
26Tue.
25°17 °C
27Wed.
25°17 °C
28Thu.
25°17 °C
29Fri.
25°17 °C
30Sat.
25°17 °C
31Sun.
25°16 °C
AugustWeather Overview
No. of days:
Sunny
12
Cloudy
4
Rainy
14
Snowy
0
The monthly weather averages in Sarnia consist of 12 sunny days, 4 cloudy days, 14 rainy days, and 0 snowy days.
Sarnia's Locations Weather Conditions
Canada's Hottest Cities - August 2025
1.
Fredericton, Canada
Sunny
41%
6.8
10.8 kmph / WSW
2.
Bathurst, Canada
Partly cloudy
44%
6.7
6.1 kmph / NW
3.
Miramichi, Canada
Sunny
56%
6.6
10.8 kmph / SW
4.
Hamilton, Canada
Sunny
42%
7.6
13 kmph / S
5.
Milton, Canada
Sunny
42%
7.5
11.9 kmph / SSE
6.
Burlington, Canada
Sunny
42%
7.6
12.2 kmph / S
7.
Oakville, Canada
Sunny
42%
7.6
11.9 kmph / SSE
8.
Mississauga, Canada
Sunny
42%
7.6
11.9 kmph / SSE
9.
Queens, Canada
Sunny
41%
7.1
10.4 kmph / W
10.
Petawawa, Canada
Sunny
36%
7.2
14.4 kmph / SW
Last Updated: 11 Aug 2025, 06:18 PM
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