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Weather in Saguenay/Lac-Saint-Jean for September 2025

Your guide to Saguenay/Lac-Saint-Jean weather in September - trends and predictions
  • In general, the average temperature in Saguenay/Lac-Saint-Jean at the beginning of September is 23.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °C by the end of September.

  • The climate of Saguenay/Lac-Saint-Jean in September is notably wet, with an average of 12 rainy days.

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Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/10°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Saguenay/Lac-Saint-Jean in September average weather

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Temperatures trend during September in Saguenay/Lac-Saint-Jean

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. Fog
Fog
23° /6° 1.8 mm 5
2 Sept. Patchy rain possible
Patchy rain possible
17° /7° 1.2 mm 4
3 Sept. Mist
Mist
22° /9° 0 mm 6
4 Sept. Cloudy
Cloudy
26° /11° 0 mm 6
5 Sept. Fog
Fog
27° /14° 0 mm 6
6 Sept. Patchy rain possible
Patchy rain possible
27° /15° 0.2 mm 7
7 Sept. Light rain shower
Light rain shower
24° /15° 7.5 mm 6
8 Sept. Light rain shower
Light rain shower
17° /10° 9.7 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
13° /7° 2.2 mm 3
10 Sept. Partly cloudy
Partly cloudy
14° /7° 0.8 mm 4
11 Sept. Patchy rain possible
Patchy rain possible
18° /7° 0.3 mm 5
12 Sept. Overcast
Overcast
21° /10° 0.2 mm 5
13 Sept. Heavy rain
Heavy rain
21° /13° 11.8 mm 5
14 Sept. Mist
Mist
20° /9° 0 mm 5
15 Sept. Overcast
Overcast
22° /9° 0 mm 5
16 Sept. Overcast
Overcast
22° /11° 4.4 mm 6
17 Sept. Light rain shower
Light rain shower
25° /14° 0.2 mm 6
18 Sept. Light rain shower
Light rain shower
23° /11° 2 mm 5
19 Sept. Light rain shower
Light rain shower
18° /14° 4.9 mm 4
20 Sept. Fog
Fog
18° /12° 0.3 mm 4
21 Sept. Cloudy
Cloudy
18° /8° 0 mm 5
22 Sept. Overcast
Overcast
21° /8° 0 mm 6
23 Sept. Light rain
Light rain
18° /8° 3 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
20° /8° 0 mm 5
25 Sept. Partly cloudy
Partly cloudy
14° /6° 9.2 mm 4
26 Sept. Partly cloudy
Partly cloudy
16° /7° 47.1 mm 4
27 Sept. Partly cloudy
Partly cloudy
17° /7° 1.7 mm 5
28 Sept. Mist
Mist
18° /7° 0 mm 5
29 Sept. Mist
Mist
19° /8° 0 mm 5
30 Sept. Mist
Mist
21° /7° 0 mm 5
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Important Notice
Our weather forecast for Saguenay/Lac-Saint-Jean 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 Saguenay/Lac-Saint-Jean forecast closer to your planned date for the most up-to-date weather information.

Saguenay/Lac-Saint-Jean in September - FAQ

What are the expected maximum and minimum temperatures in Saguenay/Lac-Saint-Jean during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Saguenay/Lac-Saint-Jean during September?
Moderate rainfall is anticipated in Saguenay/Lac-Saint-Jean during September, with a total of 73.6 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Saguenay/Lac-Saint-Jean during September?
The average wind speed in Saguenay/Lac-Saint-Jean during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Saguenay/Lac-Saint-Jean

Explore the daily rainfall trends and prepare for Saguenay/Lac-Saint-Jeans September weather 💧

UV exposure in Saguenay/Lac-Saint-Jean during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Saguenay/Lac-Saint-Jean?

Get accurate weather forecasts for Saguenay/Lac-Saint-Jean, located at latitude 48.417 and longitude -71.066. Stay updated with localized weather information tailored for Saguenay/Lac-Saint-Jean.

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