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Weather in Prince Rupert for September 2026

Your guide to Prince Rupert weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Prince Rupert at the beginning of September is 13.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 10.6 °C by the end of September.

    • Rain 🌧️

  • Prince Rupert in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 787.5 mm.

    • More

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Average dry days
13
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/11°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
89 %
Avg humidity

Prince Rupert Weather September

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

Temperatures trend during September in Prince Rupert

See the weather trend as well as the moving average line

September weather in Prince Rupert day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 15° /12° 0 mm 3
2 Sept. Mist
Mist
 14° /12° 0 mm 2
3 Sept. Mist
Mist
 13° /12° 0 mm 1
4 Sept. Mist
Mist
 13° /12° 0 mm 1
5 Sept. Fog
Fog
 13° /13° 0 mm 1
6 Sept. Mist
Mist
 14° /12° 0 mm 1
7 Sept. Mist
Mist
 13° /12° 0 mm 1
8 Sept. Mist
Mist
 12° /11° 0 mm 1
9 Sept. Fog
Fog
 12° /11° 0 mm 1
10 Sept. Mist
Mist
 14° /11° 0 mm 1
11 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /12° 94.2 mm 1
12 Sept. Moderate rain
Moderate rain
 13° /10° 35.1 mm 0
13 Sept. Moderate rain
Moderate rain
 14° /10° 59 mm 0
14 Sept. Mist
Mist
 11° /11° 1 mm 1
15 Sept. Moderate rain at times
Moderate rain at times
 13° /11° 4 mm 1
16 Sept. Overcast
Overcast
 19° /13° 0 mm 1
17 Sept. Light rain shower
Light rain shower
 17° /12° 9 mm 1
18 Sept. Overcast
Overcast
 13° /10° 0 mm 1
19 Sept. Moderate rain
Moderate rain
 12° /11° 93.3 mm 0
20 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /11° 153.6 mm 0
21 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /11° 64.9 mm 0
22 Sept. Light rain shower
Light rain shower
 12° /10° 88 mm 0
23 Sept. Overcast
Overcast
 11° /10° 11.4 mm 1
24 Sept. Heavy rain at times
Heavy rain at times
 11° /9° 8.5 mm 1
25 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /9° 86.3 mm 0
26 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /9° 39.5 mm 0
27 Sept. Heavy rain at times
Heavy rain at times
 10° /9° 13.7 mm 1
28 Sept. Cloudy
Cloudy
 12° /8° 0 mm 1
29 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /9° 8.2 mm 0
30 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /8° 17.8 mm 0
Next
Important Notice
Our weather forecast for Prince Rupert 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 Prince Rupert forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Prince Rupert in September - FAQ

What are the expected maximum and minimum temperatures in Prince Rupert during September?
During September, expect a variety of temperatures with highs around 13° and lows near 11°, suitable for diverse activities and preferences.

How much rainfall should be expected in Prince Rupert during September?
Significant rainfall exceeding 787.5 mm is expected in Prince Rupert during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Prince Rupert during September?
The average wind speed in Prince Rupert during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Prince Rupert

Explore the daily rainfall trends and prepare for Prince Ruperts September weather 💧
Typically, Prince Rupert has 17 rainy days in September with a total of 787.5 mm of rainfall.

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Location coordinates Where is Prince Rupert?

Get accurate weather forecasts for Prince Rupert, located at latitude 54.315 and longitude -130.321. Stay updated with localized weather information tailored for Prince Rupert.

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