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Weather in Port Alberni for September 2026

Your guide to Port Alberni weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Port Alberni is cooler than usual, with temperatures averaging 16.8 °C, this is 2.3 °C below the typical seasonal average.

  • The forecast for the next days in Port Alberni predicts temperatures to be around 19 °C, close to the historical average.

  • In general, the average temperature in Port Alberni at the beginning of September is 19.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.3 °C by the end of September.

    • Rain 🌧️

  • The climate of Port Alberni in September is notably wet, with an average of 12 rainy days, and a total of 105.9 mm of precipitation.

    • More

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

Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/12°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Port Alberni Weather September

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

Temperatures trend during September in Port Alberni

See the weather trend as well as the moving average line

September weather in Port Alberni day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 20° /14° 0 mm 6
2 Sept. Sunny
Sunny
 20° /13° 49.5 mm 5
3 Sept. Overcast
Overcast
 18° /13° 4.4 mm 4
4 Sept. Overcast
Overcast
 20° /13° 0.7 mm 4
5 Sept. Sunny
Sunny
 20° /14° 0.5 mm 5
6 Sept. Cloudy
Cloudy
 19° /14° 0 mm 5
7 Sept. Mist
Mist
 19° /13° 0 mm 5
8 Sept. Sunny
Sunny
 18° /13° 2.7 mm 5
9 Sept. Cloudy
Cloudy
 19° /12° 0 mm 4
10 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 0.1 mm 4
11 Sept. Patchy rain possible
Patchy rain possible
 17° /12° 0.1 mm 3
12 Sept. Overcast
Overcast
 22° /12° 0 mm 3.4
13 Sept. Sunny
Sunny
 19° /8° 0 mm 4.6
14 Sept. Partly cloudy
Partly cloudy
 14° /8° 0 mm 2.8
15 Sept. Sunny
Sunny
 18° /9° 0.1 mm 4.6
16 Sept. Sunny
Sunny
 20° /11° 0 mm 4.9
17 Sept. Sunny
Sunny
 22° /12° 0 mm 6
18 Sept. Sunny
Sunny
 25° /14° 0 mm 6
19 Sept. Overcast
Overcast
 20° /12° 0 mm 5
20 Sept. Partly cloudy
Partly cloudy
 15° /9° 0 mm 4
21 Sept. Sunny
Sunny
 19° /12° 0 mm 5
22 Sept. Partly cloudy
Partly cloudy
 19° /12° 0 mm 5
23 Sept. Sunny
Sunny
 23° /14° 0 mm 6
24 Sept. Sunny
Sunny
 17° /12° 0 mm 5
25 Sept. Sunny
Sunny
 16° /9° 0 mm 5
26 Sept. Light rain shower
Light rain shower
 14° /11° 14.3 mm 3
27 Sept. Moderate rain
Moderate rain
 14° /10° 17.6 mm 3
28 Sept. Light rain shower
Light rain shower
 13° /9° 6.8 mm 3
29 Sept. Partly cloudy
Partly cloudy
 13° /8° 0.8 mm 3
30 Sept. Cloudy
Cloudy
 13° /8° 13 mm 3
Next
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.
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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 12°. 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 105.9 mm is expected in Port Alberni during September, occurring over more than 12 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 14 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 💧
Typically, Port Alberni has 12 rainy days in September with a total of 105.9 mm of rainfall.

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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Location coordinates 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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