Corner Brook
September
Weather in Corner Brook for September 2025
Your guide to Corner Brook weather in September - trends and predictions
In general, the average temperature in Corner Brook at the beginning of September is 21 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.6 °C by the end of September.
Expect significant rainfall in Corner Brook during September, with an average of 17 rainy days.
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13
Dry days
17
Rainy days
0
Snow days
18°/8°
Temperatures
15 km/h
Avg max wind
86 %
Avg humidity
Corner Brook in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2  20° | 3  17° | 4 19° | 5  24° | 6 26° | 7 22° |
| 8 20° | 9  19° | 10 18° | 11  14° | 12 14° | 13 20° | 14 16° |
| 15 16° | 16  19° | 17 20° | 18 17° | 19  15° | 20 15° | 21 13° |
| 22 10° | 23 14° | 24 15° | 25 12° | 26 16° | 27 14° | 28 14° |
| 29 16° | 30 15° |
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Temperatures trend during September in Corner Brook
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. | Light rain shower | 19° /5° | 0.7 mm | 5 | |
| 2 Sept. | Sunny | 20° /7° | 1.6 mm | 6 | |
| 3 Sept. | Cloudy | 17° /7° | 2 mm | 4 | |
| 4 Sept. | Cloudy | 19° /6° | 0.9 mm | 5 | |
| 5 Sept. | Mist | 24° /7° | 0 mm | 6 | |
| 6 Sept. | Light rain shower | 26° /13° | 0.5 mm | 6 | |
| 7 Sept. | Light rain shower | 22° /13° | 2.5 mm | 5 | |
| 8 Sept. | Fog | 20° /11° | 0.8 mm | 5 | |
| 9 Sept. | Moderate or heavy rain shower | 19° /9° | 4.8 mm | 4 | |
| 10 Sept. | Fog | 18° /9° | 0.4 mm | 4 | |
| 11 Sept. | Heavy rain | 14° /8° | 10.7 mm | 3 | |
| 12 Sept. | Fog | 14° /6° | 1.2 mm | 4 | |
| 13 Sept. | Mist | 20° /7° | 0.2 mm | 5 | |
| 14 Sept. | Mist | 16° /8° | 0.2 mm | 4 | |
| 15 Sept. | Moderate or heavy rain shower | 16° /6° | 15.9 mm | 4 | |
| 16 Sept. | Light rain | 19° /7° | 3.8 mm | 5 | |
| 17 Sept. | Light rain shower | 20° /13° | 11.6 mm | 5 | |
| 18 Sept. | Fog | 17° /10° | 0.1 mm | 4 | |
| 19 Sept. | Overcast | 15° /10° | 26.2 mm | 4 | |
| 20 Sept. | Light rain shower | 15° /9° | 3 mm | 4 | |
| 21 Sept. | Light rain | 13° /5° | 4.6 mm | 3 | |
| 22 Sept. | Overcast | 10° /3° | 0 mm | 3 | |
| 23 Sept. | Light rain shower | 14° /6° | 3.1 mm | 4 | |
| 24 Sept. | Patchy rain possible | 15° /7° | 0.9 mm | 4 | |
| 25 Sept. | Moderate or heavy rain shower | 12° /3° | 5.1 mm | 3 | |
| 26 Sept. | Cloudy | 16° /4° | 0 mm | 5 | |
| 27 Sept. | Cloudy | 14° /5° | 0 mm | 4 | |
| 28 Sept. | Fog | 14° /6° | 0 mm | 3 | |
| 29 Sept. | Mist | 16° /5° | 0 mm | 4 | |
| 30 Sept. | Fog | 15° /6° | 1.5 mm | 4 | |
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Important Notice
Our weather forecast for Corner Brook 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 Corner Brook forecast closer to your planned date for the most up-to-date weather information.
Corner Brook in September - FAQ
What are the expected maximum and minimum temperatures in Corner Brook during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Corner Brook during September?
Significant rainfall exceeding 132.5 mm is expected in Corner Brook during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Corner Brook during September?
The average wind speed in Corner Brook during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Corner Brook
Explore the daily rainfall trends and prepare for Corner Brooks September weather 💧
UV exposure in Corner Brook during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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