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Canada weather

Weather in Sept-Îles for September 2025

Your guide to Sept-Îles weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Sept-Îles is slightly cooler than the historical average by -1.2 °C.

  • Expect cooler weather in the next days in Sept-Îles with the forecast suggesting a temperature of 13.6 °C, lower than the historical average.

  • In general, the average temperature in Sept-Îles at the beginning of September is 16.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.7 °C by the end of September.

    • Rain 🌧️

  • With an average of 5 rainy days, Sept-Îles experiences minimal rainfall in September.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
25
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/9°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Sept-Îles Weather September

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

Temperatures trend during September in Sept-Îles

See the weather trend as well as the moving average line

September weather in Sept-Îles day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 17° /11° 1.8 mm 5
2 Sept. Partly cloudy
Partly cloudy
 16° /10° 0.2 mm 4
3 Sept. Mist
Mist
 15° /11° 0.1 mm 3
4 Sept. Fog
Fog
 16° /11° 1.2 mm 4
5 Sept. Mist
Mist
 17° /12° 1.1 mm 4
6 Sept. Fog
Fog
 17° /12° 1.7 mm 4
7 Sept. Fog
Fog
 15° /11° 1 mm 4
8 Sept. Light rain shower
Light rain shower
 15° /11° 9 mm 4
9 Sept. Light rain shower
Light rain shower
 12° /10° 1.2 mm 3
10 Sept. Partly cloudy
Partly cloudy
 14° /10° 1.3 mm 4
11 Sept. Partly cloudy
Partly cloudy
 15° /9° 0 mm 4
12 Sept. Partly cloudy
Partly cloudy
 15° /9° 0 mm 4
13 Sept. Overcast
Overcast
 15° /10° 3 mm 3
14 Sept. Light rain
Light rain
 15° /10° 8.7 mm 4
15 Sept. Partly cloudy
Partly cloudy
 16° /9° 0 mm 4
16 Sept. Sunny
Sunny
 14° /10° 0 mm 1
17 Sept. Mist
Mist
 15° /9° 0 mm 1.1
18 Sept. Mist
Mist
 13° /10° 0 mm 0.8
19 Sept. Patchy rain possible
Patchy rain possible
 12° /7° 0.1 mm 0.7
20 Sept. Sunny
Sunny
 13° /4° 0 mm 0.1
21 Sept. Partly cloudy
Partly cloudy
 16° /7° 0 mm 4
22 Sept. Partly cloudy
Partly cloudy
 16° /12° 0 mm 4
23 Sept. Partly cloudy
Partly cloudy
 16° /12° 0 mm 4
24 Sept. Moderate rain
Moderate rain
 12° /12° 5.1 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 12° /10° 0.3 mm 3
26 Sept. Overcast
Overcast
 12° /8° 0 mm 2
27 Sept. Partly cloudy
Partly cloudy
 13° /8° 0 mm 4
28 Sept. Partly cloudy
Partly cloudy
 14° /8° 0 mm 4
29 Sept. Partly cloudy
Partly cloudy
 12° /9° 0.1 mm 4
30 Sept. Partly cloudy
Partly cloudy
 14° /8° 0 mm 5
Next
Important Notice
Our weather forecast for Sept-Îles 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 Sept-Îles forecast closer to your planned date for the most up-to-date weather information.
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Sept-Îles in September - FAQ

What are the expected maximum and minimum temperatures in Sept-Îles during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sept-Îles during September?
Significant rainfall exceeding 191.5 mm is expected in Sept-Îles during September, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sept-Îles during September?
The average wind speed in Sept-Îles during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Sept-Îles

Explore the daily rainfall trends and prepare for Sept-Îless September weather 💧

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Location coordinates Where is Sept-Îles?

Get accurate weather forecasts for Sept-Îles, located at latitude 50.2 and longitude -66.382. Stay updated with localized weather information tailored for Sept-Îles.

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