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Weather in Shawinigan for September 2026

Your guide to Shawinigan weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Shawinigan is slightly cooler than the historical average by 1.3 °C.

  • The forecast for the next days in Shawinigan predicts a temperature of 14.5 °C, which is cooler than the historical average.

  • In general, the average temperature in Shawinigan at the beginning of September is 23.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18 °C by the end of September.

    • Rain 🌧️

  • The climate of Shawinigan in September is notably wet, with an average of 11 rainy days, and a total of 139.7 mm of precipitation.

    • More

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Average dry days
19
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/10°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Shawinigan Weather September

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

Temperatures trend during September in Shawinigan

See the weather trend as well as the moving average line

September weather in Shawinigan day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 24° /9° 1.3 mm 5
2 Sept. Mist
Mist
 22° /11° 6.2 mm 5
3 Sept. Fog
Fog
 24° /13° 11.6 mm 5
4 Sept. Sunny
Sunny
 26° /13° 0.1 mm 6
5 Sept. Fog
Fog
 23° /14° 6.5 mm 5
6 Sept. Fog
Fog
 24° /13° 4.6 mm 6
7 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 23° /12° 4.7 mm 5
8 Sept. Light rain shower
Light rain shower
 19° /10° 4.8 mm 5
9 Sept. Mist
Mist
 21° /7° 5.3 mm 4
10 Sept. Mist
Mist
 21° /9° 5.9 mm 5
11 Sept. Mist
Mist
 21° /10° 0 mm 5
12 Sept. Overcast
Overcast
 20° /9° 0.1 mm 5
13 Sept. Heavy rain
Heavy rain
 22° /12° 7.2 mm 4
14 Sept. Fog
Fog
 19° /10° 0 mm 4
15 Sept. Overcast
Overcast
 20° /8° 0 mm 5
16 Sept. Overcast
Overcast
 23° /11° 0.2 mm 5
17 Sept. Fog
Fog
 24° /10° 0.2 mm 5
18 Sept. Light rain shower
Light rain shower
 22° /11° 1.8 mm 5
19 Sept. Moderate rain
Moderate rain
 20° /10° 2.2 mm 5
20 Sept. Overcast
Overcast
 18° /8° 0 mm 4
21 Sept. Sunny
Sunny
 19° /6° 0.1 mm 5
22 Sept. Mist
Mist
 19° /6° 1.6 mm 4
23 Sept. Mist
Mist
 20° /8° 0 mm 5
24 Sept. Sunny
Sunny
 20° /9° 0 mm 5
25 Sept. Sunny
Sunny
 17° /8° 33.9 mm 4
26 Sept. Sunny
Sunny
 19° /10° 51.8 mm 4
27 Sept. Overcast
Overcast
 19° /11° 0.2 mm 3.8
28 Sept. Overcast
Overcast
 13° /9° 1.5 mm 1.3
29 Sept. Overcast
Overcast
 18° /11° 0 mm 3.4
30 Sept. Mist
Mist
 20° /10° 0 mm 3.6
Next
Important Notice
Our weather forecast for Shawinigan in September 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 Shawinigan forecast closer to your planned date for the most up-to-date weather information.
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Shawinigan in September - FAQ

What are the expected maximum and minimum temperatures in Shawinigan during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Shawinigan during September?
Significant rainfall exceeding 139.7 mm is expected in Shawinigan during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Shawinigan during September?
The average wind speed in Shawinigan during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Shawinigan

Explore the daily rainfall trends and prepare for Shawinigans September weather 💧
Typically, Shawinigan has 11 rainy days in September with a total of 139.7 mm of rainfall.

UV exposure in Shawinigan during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Shawinigan?

Get accurate weather forecasts for Shawinigan, located at latitude 46.567 and longitude -72.749. Stay updated with localized weather information tailored for Shawinigan.

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