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Weather in Shawinigan for September 2025

Your guide to Shawinigan weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Shawinigan has been nearly identical to the historical average, with a temperature of 22 °C (showing only a slight deviation of -0.2 °C).

  • The forecast for the next days in Shawinigan predicts temperatures to be around 22 °C, close to the historical average.

  • In general, the average temperature in Shawinigan at the beginning of September is 23.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20 °C by the end of September.

    • Rain 🌧️

  • With an average of 3 rainy days, Shawinigan experiences minimal rainfall in September.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/9°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
79 %
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
25°
2
Mist
21°
3
Fog
24°
4
Fog
26°
5
Fog
25°
6
Fog
24°
7
Patchy light rain with thunder
22°
8
Light rain shower
18°
9
Mist
21°
10
Mist
21°
11
Mist
21°
12
Overcast
20°
13
Heavy rain
22°
14
Fog
21°
15
Partly cloudy
21°
16
Sunny
25°
17
Partly cloudy
25°
18
Patchy rain possible
24°
19
Sunny
17°
20
Sunny
17°
21
Sunny
21°
22
Patchy rain possible
28°
23
Patchy rain possible
30°
24
Partly cloudy
26°
25
Patchy rain possible
21°
26
Patchy rain possible
22°
27
Patchy rain possible
17°
28
Patchy rain possible
17°
29
Patchy rain possible
16°
30
Mist
21°

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
 25° /9° 1.7 mm 6
2 Sept. Mist
Mist
 21° /11° 0 mm 5
3 Sept. Fog
Fog
 24° /12° 0 mm 6
4 Sept. Fog
Fog
 26° /13° 0 mm 6
5 Sept. Fog
Fog
 25° /14° 7.1 mm 6
6 Sept. Fog
Fog
 24° /14° 6 mm 5
7 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 22° /13° 6.2 mm 5
8 Sept. Light rain shower
Light rain shower
 18° /10° 5.1 mm 5
9 Sept. Mist
Mist
 21° /7° 0 mm 5
10 Sept. Mist
Mist
 21° /8° 0 mm 5
11 Sept. Mist
Mist
 21° /11° 0 mm 5
12 Sept. Overcast
Overcast
 20° /9° 0.1 mm 5
13 Sept. Heavy rain
Heavy rain
 22° /11° 8.6 mm 5
14 Sept. Fog
Fog
 21° /11° 0 mm 5
15 Sept. Partly cloudy
Partly cloudy
 21° /9° 0 mm 5
16 Sept. Sunny
Sunny
 25° /6° 0 mm 1.2
17 Sept. Partly cloudy
Partly cloudy
 25° /8° 0 mm 1.2
18 Sept. Patchy rain possible
Patchy rain possible
 24° /12° 3.2 mm 1
19 Sept. Sunny
Sunny
 17° /7° 0 mm 0.6
20 Sept. Sunny
Sunny
 17° /4° 0 mm 0
21 Sept. Sunny
Sunny
 21° /4° 0 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 28° /13° 0.9 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 30° /16° 0.3 mm 5
24 Sept. Partly cloudy
Partly cloudy
 26° /14° 0 mm 5
25 Sept. Patchy rain possible
Patchy rain possible
 21° /15° 4.9 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
 22° /14° 1.8 mm 4
27 Sept. Patchy rain possible
Patchy rain possible
 17° /13° 1.5 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 17° /13° 0.1 mm 3
29 Sept. Patchy rain possible
Patchy rain possible
 16° /12° 0.1 mm 3
30 Sept. Mist
Mist
 21° /7° 0 mm 5
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 24° and cooler nights around 9°. 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 293.3 mm is expected in Shawinigan during September, occurring over more than 3 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 💧

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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