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Canada weather

Weather in Dorval for September 2025

Your guide to Dorval weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Dorval has been nearly identical to the historical average, with a temperature of 22.8 °C (showing only a slight deviation of -0.5 °C).

  • Expect cooler weather in the next days in Dorval with the forecast suggesting a temperature of 21.1 °C, lower than the historical average.

  • In general, the average temperature in Dorval at the beginning of September is 24.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.6 °C by the end of September.

    • Rain 🌧️

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

    • More

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Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/10°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Dorval Weather September

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

Temperatures trend during September in Dorval

See the weather trend as well as the moving average line

September weather in Dorval day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 25° /11° 2.6 mm 5
2 Sept. Mist
Mist
 23° /13° 0 mm 5
3 Sept. Mist
Mist
 24° /13° 0 mm 6
4 Sept. Mist
Mist
 27° /15° 9.6 mm 6
5 Sept. Mist
Mist
 26° /15° 6.7 mm 6
6 Sept. Cloudy
Cloudy
 25° /16° 9.6 mm 6
7 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 22° /13° 8.4 mm 5
8 Sept. Light rain shower
Light rain shower
 20° /11° 13.2 mm 5
9 Sept. Cloudy
Cloudy
 21° /9° 0 mm 5
10 Sept. Light rain shower
Light rain shower
 22° /11° 3.4 mm 5
11 Sept. Overcast
Overcast
 22° /12° 1.6 mm 5
12 Sept. Overcast
Overcast
 23° /12° 1.1 mm 5
13 Sept. Moderate rain
Moderate rain
 20° /13° 5.4 mm 5
14 Sept. Partly cloudy
Partly cloudy
 24° /13° 0 mm 0.9
15 Sept. Partly cloudy
Partly cloudy
 25° /14° 0 mm 1.1
16 Sept. Partly cloudy
Partly cloudy
 24° /12° 0 mm 1.2
17 Sept. Partly cloudy
Partly cloudy
 26° /13° 0 mm 1.2
18 Sept. Patchy rain possible
Patchy rain possible
 28° /16° 3.2 mm 0
19 Sept. Patchy rain possible
Patchy rain possible
 17° /12° 0.9 mm 4
20 Sept. Sunny
Sunny
 17° /9° 0 mm 4
21 Sept. Sunny
Sunny
 23° /9° 0 mm 5
22 Sept. Sunny
Sunny
 26° /14° 0 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
 22° /16° 0.5 mm 4
24 Sept. Moderate rain
Moderate rain
 17° /16° 5.7 mm 4
25 Sept. Cloudy
Cloudy
 21° /12° 0 mm 4
26 Sept. Sunny
Sunny
 12° /6° 0 mm 3
27 Sept. Sunny
Sunny
 14° /5° 0 mm 3
28 Sept. Mist
Mist
 21° /11° 0 mm 5
29 Sept. Mist
Mist
 21° /10° 0 mm 5
30 Sept. Mist
Mist
 24° /11° 0 mm 6
Next
Important Notice
Our weather forecast for Dorval 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 Dorval forecast closer to your planned date for the most up-to-date weather information.
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Dorval in September - FAQ

What are the expected maximum and minimum temperatures in Dorval during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Dorval during September?
Significant rainfall exceeding 380.8 mm is expected in Dorval during September, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Dorval during September?
The average wind speed in Dorval during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Dorval

Explore the daily rainfall trends and prepare for Dorvals September weather 💧

UV exposure in Dorval during September

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

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Location coordinates Where is Dorval?

Get accurate weather forecasts for Dorval, located at latitude 45.447 and longitude -73.753. Stay updated with localized weather information tailored for Dorval.

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