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Weather in Terrebonne for September 2025

Your guide to Terrebonne weather in September - trends and predictions
  • In general, the average temperature in Terrebonne at the beginning of September is 25.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.4 °C by the end of September.

  • Terrebonne sees moderate rainfall in September, averaging 8 rainy days.

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/11°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Terrebonne in September average weather

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Temperatures trend during September in Terrebonne

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
24° /11° 2.6 mm 6
2 Sept. Mist
Mist
22° /11° 0 mm 5
3 Sept. Overcast
Overcast
24° /11° 0 mm 6
4 Sept. Overcast
Overcast
26° /13° 0 mm 7
5 Sept. Mist
Mist
28° /16° 0 mm 7
6 Sept. Fog
Fog
27° /17° 0 mm 6
7 Sept. Patchy light rain with thunder
Patchy light rain with thunder
25° /13° 7.7 mm 6
8 Sept. Light rain shower
Light rain shower
18° /11° 9.1 mm 5
9 Sept. Cloudy
Cloudy
20° /7° 0 mm 5
10 Sept. Moderate rain
Moderate rain
20° /9° 1.5 mm 5
11 Sept. Overcast
Overcast
22° /10° 0.8 mm 6
12 Sept. Overcast
Overcast
23° /13° 0.3 mm 6
13 Sept. Moderate rain
Moderate rain
22° /13° 7.2 mm 5
14 Sept. Overcast
Overcast
20° /11° 0 mm 5
15 Sept. Partly cloudy
Partly cloudy
24° /11° 0 mm 7
16 Sept. Overcast
Overcast
24° /14° 0 mm 6
17 Sept. Partly cloudy
Partly cloudy
26° /13° 0.3 mm 7
18 Sept. Light rain shower
Light rain shower
24° /13° 1.1 mm 6
19 Sept. Moderate rain
Moderate rain
23° /14° 7.1 mm 6
20 Sept. Cloudy
Cloudy
23° /11° 0 mm 6
21 Sept. Partly cloudy
Partly cloudy
20° /8° 0 mm 5
22 Sept. Mist
Mist
22° /8° 0 mm 5
23 Sept. Mist
Mist
20° /9° 0 mm 5
24 Sept. Partly cloudy
Partly cloudy
21° /10° 0 mm 6
25 Sept. Sunny
Sunny
16° /9° 21.3 mm 4
26 Sept. Sunny
Sunny
18° /8° 58 mm 5
27 Sept. Sunny
Sunny
20° /9° 0 mm 5
28 Sept. Sunny
Sunny
19° /10° 0 mm 5
29 Sept. Mist
Mist
20° /9° 0 mm 5
30 Sept. Mist
Mist
22° /10° 0 mm 6
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Important Notice
Our weather forecast for Terrebonne 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 Terrebonne forecast closer to your planned date for the most up-to-date weather information.

Terrebonne in September - FAQ

What are the expected maximum and minimum temperatures in Terrebonne during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Terrebonne during September?
Moderate rainfall is anticipated in Terrebonne during September, with a total of 58.5 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Terrebonne during September?
The average wind speed in Terrebonne during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Terrebonne

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

UV exposure in Terrebonne during September

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

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Location coordinates Where is Terrebonne?

Get accurate weather forecasts for Terrebonne, located at latitude 45.7 and longitude -73.647. Stay updated with localized weather information tailored for Terrebonne.

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