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Saint-Hyacinthe
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Canada weather

Weather in Saint-Hyacinthe for September 2025

Your guide to Saint-Hyacinthe weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Saint-Hyacinthe has been nearly identical to the historical average, with a temperature of 22.2 °C (showing only a slight deviation of -0.3 °C).

  • The forecast for the next days in Saint-Hyacinthe predicts temperatures to be around 23 °C, close to the historical average.

  • In general, the average temperature in Saint-Hyacinthe at the beginning of September is 24.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 21.6 °C by the end of September.

    • Rain 🌧️

  • Saint-Hyacinthe experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 167.5 mm.

    • More

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Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/11°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Saint-Hyacinthe Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
24°
2
Partly cloudy
22°
3
Overcast
24°
4
Partly cloudy
27°
5
Fog
26°
6
Fog
24°
7
Light rain shower
23°
8
Light rain shower
20°
9
Sunny
20°
10
Light rain shower
21°
11
Fog
22°
12
Partly cloudy
21°
13
Moderate or heavy rain shower
20°
14
Mist
21°
15
Cloudy
22°
16
Partly cloudy
25°
17
Partly cloudy
28°
18
Patchy rain possible
26°
19
Patchy rain possible
18°
20
Sunny
17°
21
Sunny
23°
22
Patchy rain possible
27°
23
Sunny
31°
24
Sunny
27°
25
Sunny
23°
26
Sunny
16°
27
Sunny
19°
28
Sunny
23°
29
Sunny
21°
30
Cloudy
22°

Temperatures trend during September in Saint-Hyacinthe

See the weather trend as well as the moving average line

September weather in Saint-Hyacinthe day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 24° /9° 2.6 mm 6
2 Sept. Partly cloudy
Partly cloudy
 22° /11° 0.4 mm 6
3 Sept. Overcast
Overcast
 24° /11° 0 mm 5
4 Sept. Partly cloudy
Partly cloudy
 27° /13° 1.4 mm 7
5 Sept. Fog
Fog
 26° /14° 14.2 mm 6
6 Sept. Fog
Fog
 24° /15° 16.4 mm 5
7 Sept. Light rain shower
Light rain shower
 23° /13° 7.4 mm 5
8 Sept. Light rain shower
Light rain shower
 20° /10° 4.7 mm 5
9 Sept. Sunny
Sunny
 20° /7° 0 mm 5
10 Sept. Light rain shower
Light rain shower
 21° /10° 2.7 mm 5
11 Sept. Fog
Fog
 22° /10° 2.2 mm 5
12 Sept. Partly cloudy
Partly cloudy
 21° /8° 0.1 mm 5
13 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /11° 12 mm 5
14 Sept. Mist
Mist
 21° /11° 0.1 mm 5
15 Sept. Cloudy
Cloudy
 22° /10° 0 mm 6
16 Sept. Partly cloudy
Partly cloudy
 25° /7° 0 mm 1.2
17 Sept. Partly cloudy
Partly cloudy
 28° /10° 0 mm 1.1
18 Sept. Patchy rain possible
Patchy rain possible
 26° /14° 3.5 mm 1.1
19 Sept. Patchy rain possible
Patchy rain possible
 18° /6° 5 mm 0.9
20 Sept. Sunny
Sunny
 17° /3° 0 mm 0
21 Sept. Sunny
Sunny
 23° /4° 0 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 27° /15° 0.7 mm 5
23 Sept. Sunny
Sunny
 31° /16° 0.1 mm 6
24 Sept. Sunny
Sunny
 27° /17° 0 mm 6
25 Sept. Sunny
Sunny
 23° /10° 0 mm 5
26 Sept. Sunny
Sunny
 16° /2° 0 mm 3
27 Sept. Sunny
Sunny
 19° /8° 0 mm 4
28 Sept. Sunny
Sunny
 23° /6° 0 mm 4
29 Sept. Sunny
Sunny
 21° /7° 0 mm 4
30 Sept. Cloudy
Cloudy
 22° /9° 0 mm 5
Next
Important Notice
Our weather forecast for Saint-Hyacinthe 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 Saint-Hyacinthe forecast closer to your planned date for the most up-to-date weather information.
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Saint-Hyacinthe in September - FAQ

What are the expected maximum and minimum temperatures in Saint-Hyacinthe 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 Saint-Hyacinthe during September?
Significant rainfall exceeding 167.5 mm is expected in Saint-Hyacinthe during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint-Hyacinthe during September?
The average wind speed in Saint-Hyacinthe during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Saint-Hyacinthe

Explore the daily rainfall trends and prepare for Saint-Hyacinthes September weather 💧

UV exposure in Saint-Hyacinthe during September

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

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Location coordinates Where is Saint-Hyacinthe?

Get accurate weather forecasts for Saint-Hyacinthe, located at latitude 45.631 and longitude -72.957. Stay updated with localized weather information tailored for Saint-Hyacinthe.

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