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September weather forecast in Prince Rupert

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

31 August, sun

	758 mmHg		89%
	5.3 m/s		+13

31 August, Sunday. day, 14°; night, 11°; rain

1 September, mon

	757 mmHg		89%
	5.1 m/s		+13

1 September, Monday. day, 14°; night, 11°; rain

2 September, tue

	757 mmHg		88%
	5.1 m/s		+13

2 September, Tuesday. day, 14°; night, 11°; rain

3 September, wed

	758 mmHg		88%
	4.8 m/s		+13

3 September, Wednesday. day, 14°; night, 11°; overcast

4 September, thu

	759 mmHg		88%
	4.6 m/s		+13

4 September, Thursday. day, 14°; night, 10°; rain

5 September, fri

	759 mmHg		88%
	4.6 m/s		+13

5 September, Friday. day, 15°; night, 11°; rain

6 September, sat

	759 mmHg		88%
	5.1 m/s		+13

6 September, Saturday. day, 14°; night, 11°; rain

7 September, sun

	759 mmHg		89%
	5.2 m/s		+13

7 September, Sunday. day, 14°; night, 11°; rain

8 September, mon

	759 mmHg		88%
	5.1 m/s		+12

8 September, Monday. day, 14°; night, 11°; rain

9 September, tue

	757 mmHg		87%
	5.2 m/s		+12

9 September, Tuesday. day, 14°; night, 10°; partly cloudy

10 September, wed

	758 mmHg		85%
	5.7 m/s		+12

10 September, Wednesday. day, 15°; night, 10°; clear

11 September, thu

	758 mmHg		86%
	5.2 m/s		+12

11 September, Thursday. day, 14°; night, 10°; rain

12 September, fri

	759 mmHg		87%
	4.8 m/s		+12

12 September, Friday. day, 14°; night, 10°; partly cloudy

13 September, sat

	759 mmHg		87%
	4.9 m/s		+12

13 September, Saturday. day, 14°; night, 10°; clear

14 September, sun

	758 mmHg		86%
	4.6 m/s		+12

14 September, Sunday. day, 14°; night, 10°; clear

15 September, mon

	757 mmHg		85%
	4.5 m/s		+12

15 September, Monday. day, 14°; night, 9°; partly cloudy

16 September, tue

	756 mmHg		84%
	4.9 m/s		+12

16 September, Tuesday. day, 14°; night, 9°; clear

17 September, wed

	755 mmHg		85%
	5.2 m/s		+12

17 September, Wednesday. day, 14°; night, 9°; rain

18 September, thu

	755 mmHg		87%
	5.7 m/s		+12

18 September, Thursday. day, 13°; night, 10°; rain

19 September, fri

	757 mmHg		87%
	5.4 m/s		+12

19 September, Friday. day, 13°; night, 9°; rain

20 September, sat

	759 mmHg		85%
	5.6 m/s		+12

20 September, Saturday. day, 13°; night, 9°; rain

21 September, sun

	758 mmHg		86%
	6.2 m/s		+12

21 September, Sunday. day, 13°; night, 9°; overcast

22 September, mon

	757 mmHg		85%
	6.1 m/s		+11

22 September, Monday. day, 14°; night, 9°; rain

23 September, tue

	756 mmHg		86%
	6.6 m/s		+11

23 September, Tuesday. day, 13°; night, 9°; rain

24 September, wed

	756 mmHg		88%
	6.6 m/s		+11

24 September, Wednesday. day, 13°; night, 10°; rain

25 September, thu

	756 mmHg		88%
	5.7 m/s		+11

25 September, Thursday. day, 13°; night, 10°; rain

26 September, fri

	757 mmHg		88%
	5.8 m/s		+11

26 September, Friday. day, 13°; night, 9°; rain

27 September, sat

	757 mmHg		88%
	6.1 m/s		+11

27 September, Saturday. day, 13°; night, 10°; rain

28 September, sun

	757 mmHg		87%
	5.9 m/s		+11

28 September, Sunday. day, 12°; night, 9°; rain

29 September, mon

	756 mmHg		83%
	6 m/s		+11

29 September, Monday. day, 12°; night, 9°; rain

30 September, tue

	757 mmHg		84%
	5.7 m/s		+11

30 September, Tuesday. day, 12°; night, 8°; clear

1 October, wed

	758 mmHg		84%
	5.8 m/s		+11

1 October, Wednesday. day, 12°; night, 8°; rain

2 October, thu

	758 mmHg		82%
	5.4 m/s		+11

2 October, Thursday. day, 12°; night, 7°; clear

3 October, fri

	758 mmHg		83%
	5 m/s		+11

3 October, Friday. day, 12°; night, 7°; partly cloudy

4 October, sat

	758 mmHg		84%
	5.1 m/s		+11

4 October, Saturday. day, 12°; night, 7°; partly cloudy

Average data for 10 years

Prince Rupert September

5

sunny days

20

days with precipitation

16

cloudy days

5 sunny days; 20 days with precipitation; 16 cloudy days;

87

%

air humidity

3.5

m/s

WindS

285

mm of precipitation

(10% of annual average)

+12

°C

Water temperature

air humidity 87%; 285 millimeters of precipitation (10% of annual average); Wind southerly 3.5 Meters per second; Water temperature +12°

Weather graphs for September

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

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S

S

S

S

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S

SW

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S

1

Average data for 10 years

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11

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30

Daytime temperature

Night-time temperature

Cities near you

Wrangell
Juneau
Sitka
Courtenay
Ketchikan
Tofino
Skagway
Smithers
Tenakee Springs

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Oslo
Yurmala
Palanga
Dublin
Buenos Aires

The weather forecast for September 2025 is based on historical data from the past 10 years.

In September, the weather in Prince Rupert is typically warm. Average daily high temperature in September is about 14 degrees above zero. On average, Prince Rupert has 20 rainy, 5 sunny, 3 partly cloudy, and 2 cloudy days in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Prince Rupert.

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