Sarnia Weather Conditions
Current Temperature Level
30 °C
56 AQI
Air quality index is: Moderate
Last Updated: 2025-08-09 14:00 (Local Time)
MapSarnia
Sarnia Weather Parameters
18 km/h
6 m/s
214° SW
75 %
14 km
0 mm
1020 mb
UV Index8
Suggestions for
TodaySarnia9 Aug.
Umbrella• Optional
Clothing• Breathable
Driving• Enjoy Driving
Sunscreen• ApplyTrending in United States
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Sarnia 10-Days Weather Forecast
Today
25°C
80 %Sunday
25°C77 %Monday
26°C72 %Tuesday
27°C63 %Wednesday
24°C81 %Thursday
25°C76 %Friday
24°C74 %Saturday
25°C77 %Sunday
27°C70 %Monday
27°C70 %Sunny
Clear Sky with temperature at 25 °C and humidity will be at 80% with 20.5 km/h winds.31°C / 21°C
Humi.80 %
Prec.0 mm
Sunrise
06:29 AM14hrs 11min
Sunset
08:40 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
21 °C
94 %
0
14 kmph / S
Clear 
Feels 21.3 °C
Cover 4 %
Visibility 10 km
1 AM
Partly Cloudy
21 °C
95 %
0
10.8 kmph / SSE
Partly Cloudy Feels 21.2 °C
Cover 47 %
Visibility 10 km
2 AM
Thundery outbreaks in nearby
21 °C
94 %
0
14 kmph / S
Thundery outbreaks in nearbyFeels 21.4 °C
Cover 27 %
Visibility 10 km
3 AM
Thundery outbreaks in nearby
22 °C
94 %
0
11.9 kmph / S
Thundery outbreaks in nearbyFeels 21.5 °C
Cover 40 %
Visibility 10 km
4 AM
Thundery outbreaks in nearby
22 °C
94 %
0
13.7 kmph / S
Thundery outbreaks in nearbyFeels 21.6 °C
Cover 35 %
Visibility 10 km
5 AM
Clear
21 °C
95 %
0
14.4 kmph / S
Clear Feels 21.4 °C
Cover 12 %
Visibility 10 km
6 AM
Clear
21 °C
96 %
0
9.7 kmph / S
Clear Feels 21.2 °C
Cover 11 %
Visibility 10 km
7 AM
Partly Cloudy
22 °C
96 %
0.1
11.5 kmph / S
Partly Cloudy Feels 21.9 °C
Cover 29 %
Visibility 10 km
8 AM
Sunny
23 °C
90 %
0.5
12.2 kmph / SSW
SunnyFeels 25.3 °C
Cover 6 %
Visibility 10 km
9 AM
Sunny
25 °C
82 %
1.5
14.8 kmph / SSW
SunnyFeels 27.1 °C
Cover 1 %
Visibility 10 km
10 AM
Sunny
27 °C
75 %
3.1
16.9 kmph / SSW
SunnyFeels 29.7 °C
Cover 17 %
Visibility 10 km
11 AM
Sunny
28 °C
71 %
5
17.6 kmph / SSW
SunnyFeels 31.4 °C
Cover 25 %
Visibility 10 km
12 PM
Thundery outbreaks in nearby
29 °C
68 %
6.8
19.1 kmph / SSW
Thundery outbreaks in nearbyFeels 32.6 °C
Cover 42 %
Visibility 10 km
1 PM
Partly Cloudy
30 °C
66 %
7.9
18.4 kmph / SSW
Partly Cloudy Feels 33.3 °C
Cover 27 %
Visibility 10 km
2 PM
Partly cloudy
30 °C
62 %
7.9
18 kmph / SW
Partly cloudyFeels 34 °C
Cover 75 %
Visibility 14 km
3 PM
Sunny
30 °C
64 %
6.8
16.9 kmph / SSW
SunnyFeels 34.6 °C
Cover 13 %
Visibility 10 km
4 PM
Sunny
31 °C
63 %
5.1
15.5 kmph / SSW
SunnyFeels 35 °C
Cover 8 %
Visibility 10 km
5 PM
Sunny
30 °C
63 %
3.1
15.1 kmph / SSW
SunnyFeels 33.6 °C
Cover 2 %
Visibility 10 km
6 PM
Sunny
29 °C
67 %
1.5
16.9 kmph / SSW
SunnyFeels 32.1 °C
Cover 1 %
Visibility 10 km
7 PM
Sunny
28 °C
69 %
0.5
19.8 kmph / S
SunnyFeels 30.6 °C
Cover 1 %
Visibility 10 km
8 PM
Sunny
26 °C
71 %
0
20.5 kmph / S
SunnyFeels 28.6 °C
Cover 0 %
Visibility 10 km
9 PM
Clear
25 °C
81 %
0
17.6 kmph / S
Clear Feels 27.1 °C
Cover 0 %
Visibility 10 km
10 PM
Clear
24 °C
86 %
0
18.4 kmph / S
Clear Feels 26.1 °C
Cover 0 %
Visibility 10 km
11 PM
Clear
22 °C
75 %
0
14.8 kmph / S
Clear Feels 24.2 °C
Cover 14 %
Visibility 10 km
Today
25°C80 %Sunday
25°C77 %Monday
26°C72 %Tuesday
27°C63 %Wednesday
24°C81 %Thursday
25°C76 %Friday
24°C74 %Saturday
25°C77 %Sunday
27°C70 %Monday
27°C70 %Temp30 °C
ConditionSunny
Humidity64 %
Feels34.6 °C
Cover13 %
Visibility10 km
Wind Speed & Dir.16.9 kmph / SSW
UV6.8
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
9Today
31°21 °C
10Sun.
32°20 °C
11Mon.
33°20 °C
12Tue.
33°22 °C
13Wed.
31°22 °C
14Thu.
31°22 °C
15Fri.
28°21 °C
16Sat.
32°21 °C
17Sun.
34°22 °C
18Mon.
34°23 °C
19Tue.
32°22 °C
20Wed.
26°22 °C
21Thu.
27°21 °C
22Fri.
24°17 °C
23Sat.
25°16 °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
7
Cloudy
5
Rainy
18
Snowy
0
The monthly weather averages in Sarnia consist of 7 sunny days, 5 cloudy days, 18 rainy days, and 0 snowy days.
United States's Hottest Cities - August 2025
1.
Boulder City, United States
Sunny
5%
8
22.7 kmph / SSW
2.
Jean, United States
Sunny
8%
8.3
26.6 kmph / WSW
3.
Yucca Valley, United States
Sunny
8%
8.6
9 kmph / SSE
4.
Phoenix, United States
Partly cloudy
26%
8.5
11.9 kmph / W
5.
Tempe, United States
Partly cloudy
26%
8.6
11.5 kmph / WNW
6.
Henderson, United States
Sunny
9%
8.1
24.1 kmph / SW
7.
Las Vegas, United States
Sunny
9%
8.1
23.8 kmph / SW
8.
Blythe, United States
Sunny
36%
8.1
17.6 kmph / S
9.
Laredo, United States
Sunny
29%
10.8
12.6 kmph / ESE
10.
Santa Margarita, United States
Sunny
14%
6
3.6 kmph / ENE
Last Updated: 09 Aug 2025, 06:41 PM
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