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Weather in Terrebonne for September 2026

Your guide to Terrebonne weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Terrebonne at the beginning of September is 24.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.3 °C by the end of September.

    • Rain 🌧️

  • Terrebonne experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 117.1 mm.

    • More

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Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/11°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Terrebonne 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
23°
3
Overcast
25°
4
Overcast
26°
5
Mist
27°
6
Fog
24°
7
Patchy light rain with thunder
23°
8
Light rain shower
19°
9
Sunny
21°
10
Moderate rain
22°
11
Overcast
22°
12
Partly cloudy
22°
13
Moderate rain
21°
14
Overcast
21°
15
Partly cloudy
23°
16
Overcast
24°
17
Partly cloudy
26°
18
Light rain shower
25°
19
Moderate rain
22°
20
Cloudy
21°
21
Cloudy
20°
22
Mist
20°
23
Mist
21°
24
Partly cloudy
22°
25
Moderate or heavy rain shower
16°
26
Sunny
20°
27
Sunny
20°
28
Sunny
21°
29
Mist
22°
30
Mist
21°

Temperatures trend during September in Terrebonne

See the weather trend as well as the moving average line

September weather in Terrebonne 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° /11° 1.8 mm 6
2 Sept. Mist
Mist
 23° /12° 0 mm 5
3 Sept. Overcast
Overcast
 25° /12° 0 mm 6
4 Sept. Overcast
Overcast
 26° /13° 6.8 mm 6
5 Sept. Mist
Mist
 27° /14° 4.5 mm 7
6 Sept. Fog
Fog
 24° /16° 3.8 mm 5
7 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 23° /12° 5.1 mm 5
8 Sept. Light rain shower
Light rain shower
 19° /10° 6.1 mm 5
9 Sept. Sunny
Sunny
 21° /7° 0 mm 5
10 Sept. Moderate rain
Moderate rain
 22° /9° 1 mm 5
11 Sept. Overcast
Overcast
 22° /11° 0.5 mm 5
12 Sept. Partly cloudy
Partly cloudy
 22° /11° 0.2 mm 5
13 Sept. Moderate rain
Moderate rain
 21° /12° 4.8 mm 5
14 Sept. Overcast
Overcast
 21° /11° 0 mm 5
15 Sept. Partly cloudy
Partly cloudy
 23° /11° 0 mm 6
16 Sept. Overcast
Overcast
 24° /13° 0 mm 6
17 Sept. Partly cloudy
Partly cloudy
 26° /12° 0.2 mm 6
18 Sept. Light rain shower
Light rain shower
 25° /13° 0.7 mm 6
19 Sept. Moderate rain
Moderate rain
 22° /11° 4.8 mm 5
20 Sept. Cloudy
Cloudy
 21° /8° 0 mm 6
21 Sept. Cloudy
Cloudy
 20° /6° 0 mm 5
22 Sept. Mist
Mist
 20° /7° 0.6 mm 5
23 Sept. Mist
Mist
 21° /11° 0 mm 5
24 Sept. Partly cloudy
Partly cloudy
 22° /11° 0 mm 6
25 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /11° 47.7 mm 4
26 Sept. Sunny
Sunny
 20° /10° 38.6 mm 5
27 Sept. Sunny
Sunny
 20° /8° 0 mm 5
28 Sept. Sunny
Sunny
 21° /10° 0 mm 5
29 Sept. Mist
Mist
 22° /9° 0 mm 5
30 Sept. Mist
Mist
 21° /9° 0 mm 5
Next
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.
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Terrebonne in September - FAQ

What are the expected maximum and minimum temperatures in Terrebonne during September?
Enjoy moderate daytime temperatures of up to 22° 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?
Significant rainfall exceeding 117.1 mm is expected in Terrebonne during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Terrebonne during September?
The average wind speed in Terrebonne during September is 16 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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