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Weather in Sarnia for July 2027

Your guide to Sarnia weather in July - trends and predictions

    Temperatures

  • In general, the average temperature in Sarnia at the beginning of July is 26.4 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 26.1 °C by the end of July.

    • Rain 🌧️

  • The climate of Sarnia in July is notably wet, with an average of 13 rainy days, and a total of 145.9 mm of precipitation.

    • More

  • Is July a good time to visit Sarnia? check out the best time to travel to Sarnia page.

  • ✨ Is July a good time to visit Sarnia? – Ask the AI Weatherman

Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/17°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Sarnia Weather July

Move between months or click on a day
June
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
26°
2
Light rain
27°
3
Light rain
27°
4
Patchy rain possible
28°
5
Moderate rain
27°
6
Light rain
26°
7
Sunny
23°
8
Patchy rain possible
26°
9
Moderate rain
25°
10
Moderate rain
24°
11
Light rain
26°
12
Heavy rain
26°
13
Light rain
28°
14
Patchy rain possible
30°
15
Light rain
28°
16
Light rain
28°
17
Overcast
25°
18
Light rain
24°
19
Light rain
24°
20
Light rain
25°
21
Light rain
24°
22
Patchy rain possible
23°
23
Patchy rain possible
27°
24
Patchy rain possible
27°
25
Light rain
26°
26
Patchy rain possible
27°
27
Overcast
27°
28
Light rain
28°
29
Moderate or heavy rain shower
24°
30
Patchy rain possible
25°
31
Patchy rain possible
26°

Temperatures trend during July in Sarnia

See the weather trend as well as the moving average line

July weather in Sarnia day by day

Click on a date for more information
June August
Date Weather Temperatures Rain UV More
1 Jul. Light rain
Light rain
 26° /18° 3.1 mm 7
2 Jul. Light rain
Light rain
 27° /18° 4 mm 7
3 Jul. Light rain
Light rain
 27° /18° 2.7 mm 7
4 Jul. Patchy rain possible
Patchy rain possible
 28° /17° 1.5 mm 7
5 Jul. Moderate rain
Moderate rain
 27° /19° 10.9 mm 6
6 Jul. Light rain
Light rain
 26° /19° 8 mm 7
7 Jul. Sunny
Sunny
 23° /17° 0 mm 7
8 Jul. Patchy rain possible
Patchy rain possible
 26° /16° 1.6 mm 7
9 Jul. Moderate rain
Moderate rain
 25° /19° 12.3 mm 7
10 Jul. Moderate rain
Moderate rain
 24° /17° 14.3 mm 7
11 Jul. Light rain
Light rain
 26° /18° 4.7 mm 7
12 Jul. Heavy rain
Heavy rain
 26° /17° 31.3 mm 7
13 Jul. Light rain
Light rain
 28° /17° 5.5 mm 7
14 Jul. Patchy rain possible
Patchy rain possible
 30° /18° 1.6 mm 7
15 Jul. Light rain
Light rain
 28° /20° 3.3 mm 8
16 Jul. Light rain
Light rain
 28° /19° 4.2 mm 7
17 Jul. Overcast
Overcast
 25° /17° 0.2 mm 7
18 Jul. Light rain
Light rain
 24° /16° 2.7 mm 7
19 Jul. Light rain
Light rain
 24° /15° 3.3 mm 7
20 Jul. Light rain
Light rain
 25° /16° 3.3 mm 7
21 Jul. Light rain
Light rain
 24° /17° 5.3 mm 6
22 Jul. Patchy rain possible
Patchy rain possible
 23° /15° 0.2 mm 7
23 Jul. Patchy rain possible
Patchy rain possible
 27° /15° 1.2 mm 7
24 Jul. Patchy rain possible
Patchy rain possible
 27° /16° 1.6 mm 7
25 Jul. Light rain
Light rain
 26° /16° 4 mm 7
26 Jul. Patchy rain possible
Patchy rain possible
 27° /17° 2.4 mm 7
27 Jul. Overcast
Overcast
 27° /18° 0.7 mm 7
28 Jul. Light rain
Light rain
 28° /19° 3.1 mm 8
29 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /18° 5.5 mm 7
30 Jul. Patchy rain possible
Patchy rain possible
 25° /18° 1.7 mm 7
31 Jul. Patchy rain possible
Patchy rain possible
 26° /17° 1.9 mm 7
Next
Important Notice
Our weather forecast for Sarnia in July is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sarnia forecast closer to your planned date for the most up-to-date weather information.
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Sarnia in July - FAQ

What are the expected maximum and minimum temperatures in Sarnia during July?
During July, expect a variety of temperatures with highs around 26° and lows near 17°, suitable for diverse activities and preferences.

How much rainfall should be expected in Sarnia during July?
Significant rainfall exceeding 145.9 mm is expected in Sarnia during July, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Sarnia during July?
The average wind speed in Sarnia during July is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

July rainfall patterns in Sarnia

Explore the daily rainfall trends and prepare for Sarnias July weather 💧
Typically, Sarnia has 13 rainy days in July with a total of 145.9 mm of rainfall.

UV exposure in Sarnia during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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Get accurate weather forecasts for Sarnia, located at latitude 42.979 and longitude -82.404. Stay updated with localized weather information tailored for Sarnia.

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