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Capitale-Nationale (Québec)
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Weather in Capitale-Nationale for September 2025

Your guide to Capitale-Nationale weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Capitale-Nationale has been nearly identical to the historical average, with a temperature of 20.8 °C (showing only a slight deviation of -0.4 °C).

  • Expect cooler weather in the next days in Capitale-Nationale with the forecast suggesting a temperature of 19.7 °C, lower than the historical average.

  • In general, the average temperature in Capitale-Nationale at the beginning of September is 21.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18 °C by the end of September.

    • Rain 🌧️

  • Capitale-Nationale in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 111.1 mm.

    • More

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

Average dry days
11
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/10°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Capitale-Nationale Weather September

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

Temperatures trend during September in Capitale-Nationale

See the weather trend as well as the moving average line

September weather in Capitale-Nationale day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Overcast
Overcast
 21° /10° 1.9 mm 5
2 Sept. Mist
Mist
 21° /9° 0 mm 5
3 Sept. Mist
Mist
 23° /11° 0 mm 6
4 Sept. Partly cloudy
Partly cloudy
 23° /11° 0.3 mm 6
5 Sept. Overcast
Overcast
 21° /12° 4.1 mm 5
6 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 22° /12° 11.6 mm 5
7 Sept. Patchy rain possible
Patchy rain possible
 22° /11° 3 mm 5
8 Sept. Light rain shower
Light rain shower
 21° /10° 5.5 mm 5
9 Sept. Mist
Mist
 20° /10° 0.2 mm 5
10 Sept. Heavy rain at times
Heavy rain at times
 21° /10° 1.2 mm 5
11 Sept. Partly cloudy
Partly cloudy
 21° /11° 1.3 mm 5
12 Sept. Mist
Mist
 21° /10° 1.9 mm 5
13 Sept. Partly cloudy
Partly cloudy
 21° /12° 10.7 mm 5
14 Sept. Partly cloudy
Partly cloudy
 18° /10° 2.2 mm 5
15 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /9° 5.8 mm 4
16 Sept. Sunny
Sunny
 26° /9° 0 mm 1.2
17 Sept. Partly cloudy
Partly cloudy
 25° /8° 0 mm 1.2
18 Sept. Partly cloudy
Partly cloudy
 23° /14° 0 mm 0.7
19 Sept. Sunny
Sunny
 15° /6° 0 mm 0.7
20 Sept. Sunny
Sunny
 16° /2° 0 mm 0
21 Sept. Sunny
Sunny
 19° /3° 0 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 16° /11° 0.8 mm 3
23 Sept. Fog
Fog
 27° /15° 0 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 24° /16° 0.9 mm 4
25 Sept. Sunny
Sunny
 20° /7° 0 mm 5
26 Sept. Sunny
Sunny
 14° /3° 0 mm 3
27 Sept. Sunny
Sunny
 16° /3° 0 mm 3
28 Sept. Sunny
Sunny
 18° /4° 0 mm 4
29 Sept. Sunny
Sunny
 17° /6° 0 mm 3
30 Sept. Moderate rain at times
Moderate rain at times
 17° /6° 0.5 mm 4
Next
Important Notice
Our weather forecast for Capitale-Nationale 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 Capitale-Nationale forecast closer to your planned date for the most up-to-date weather information.
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Capitale-Nationale in September - FAQ

What are the expected maximum and minimum temperatures in Capitale-Nationale during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Capitale-Nationale during September?
Significant rainfall exceeding 111.1 mm is expected in Capitale-Nationale during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Capitale-Nationale during September?
The average wind speed in Capitale-Nationale during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Capitale-Nationale

Explore the daily rainfall trends and prepare for Capitale-Nationales September weather 💧

UV exposure in Capitale-Nationale during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Capitale-Nationale?

Get accurate weather forecasts for Capitale-Nationale, located at latitude 46.812 and longitude -71.215. Stay updated with localized weather information tailored for Capitale-Nationale.

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