Port Alberni
September
Weather in Port Alberni for September 2025
Your guide to Port Alberni weather in September - trends and predictions
In general, the average temperature in Port Alberni at the beginning of September is 20.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.7 °C by the end of September.
The climate of Port Alberni in September is notably wet, with an average of 11 rainy days.
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19
Dry days
11
Rainy days
0
Snow days
17°/11°
Temperatures
15 km/h
Avg max wind
78 %
Avg humidity
Port Alberni in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2 22° | 3  18° | 4 19° | 5  20° | 6  20° | 7  21° |
| 8 19° | 9 19° | 10 18° | 11 18° | 12 16° | 13 16° | 14 18° |
| 15 19° | 16 17° | 17  16° | 18 16° | 19 15° | 20 15° | 21 16° |
| 22 18° | 23 15° | 24 15° | 25  15° | 26 13° | 27  14° | 28 13° |
| 29  13° | 30 13° |
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Temperatures trend during September in Port Alberni
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. | Sunny | 23° /14° | 0 mm | 6 | |
| 2 Sept. | Sunny | 22° /13° | 0 mm | 6 | |
| 3 Sept. | Overcast | 18° /12° | 0 mm | 4 | |
| 4 Sept. | Overcast | 19° /11° | 0 mm | 5 | |
| 5 Sept. | Patchy rain possible | 20° /13° | 1 mm | 5 | |
| 6 Sept. | Cloudy | 20° /13° | 0 mm | 5 | |
| 7 Sept. | Mist | 21° /13° | 0 mm | 5 | |
| 8 Sept. | Mist | 19° /13° | 0 mm | 5 | |
| 9 Sept. | Mist | 19° /12° | 0 mm | 4 | |
| 10 Sept. | Patchy rain possible | 18° /12° | 0.2 mm | 5 | |
| 11 Sept. | Patchy rain possible | 18° /12° | 0.1 mm | 4 | |
| 12 Sept. | Mist | 16° /10° | 1.1 mm | 4 | |
| 13 Sept. | Mist | 16° /11° | 1.4 mm | 4 | |
| 14 Sept. | Sunny | 18° /11° | 6.1 mm | 5 | |
| 15 Sept. | Sunny | 19° /11° | 0.1 mm | 6 | |
| 16 Sept. | Overcast | 17° /10° | 0 mm | 5 | |
| 17 Sept. | Light drizzle | 16° /12° | 13.5 mm | 4 | |
| 18 Sept. | Overcast | 16° /10° | 1.5 mm | 5 | |
| 19 Sept. | Mist | 15° /10° | 0 mm | 4 | |
| 20 Sept. | Sunny | 15° /8° | 0 mm | 5 | |
| 21 Sept. | Sunny | 16° /10° | 0 mm | 4 | |
| 22 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 23 Sept. | Light rain shower | 15° /12° | 1.3 mm | 4 | |
| 24 Sept. | Patchy light drizzle | 15° /11° | 9.6 mm | 4 | |
| 25 Sept. | Moderate or heavy rain with thunder | 15° /11° | 36.5 mm | 4 | |
| 26 Sept. | Light rain shower | 13° /11° | 21.5 mm | 3 | |
| 27 Sept. | Moderate rain | 14° /10° | 11 mm | 3 | |
| 28 Sept. | Light rain shower | 13° /8° | 1.8 mm | 3 | |
| 29 Sept. | Partly cloudy | 13° /6° | 0 mm | 4 | |
| 30 Sept. | Cloudy | 13° /7° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Port Alberni 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 Port Alberni forecast closer to your planned date for the most up-to-date weather information.
Port Alberni in September - FAQ
What are the expected maximum and minimum temperatures in Port Alberni during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Port Alberni during September?
Significant rainfall exceeding 138.9 mm is expected in Port Alberni during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Port Alberni during September?
The average wind speed in Port Alberni during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Port Alberni
Explore the daily rainfall trends and prepare for Port Albernis September weather 💧
UV exposure in Port Alberni during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Port Alberni?Get accurate weather forecasts for Port Alberni, located at latitude 49.241 and longitude -124.803. Stay updated with localized weather information tailored for Port Alberni.
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