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September weather forecast in Baie-Comeau

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

	753 mmHg		81%
	4.9 m/s		+13

31 August, Sunday. day, 17°; night, 12°; rain

1 September, mon

	755 mmHg		78%
	5.2 m/s		+13

1 September, Monday. day, 17°; night, 12°; clear

2 September, tue

	756 mmHg		77%
	4.9 m/s		+13

2 September, Tuesday. day, 17°; night, 12°; clear

3 September, wed

	754 mmHg		77%
	4.9 m/s		+12

3 September, Wednesday. day, 17°; night, 12°; partly cloudy

4 September, thu

	753 mmHg		79%
	5.1 m/s		+13

4 September, Thursday. day, 16°; night, 12°; rain

5 September, fri

	755 mmHg		78%
	4.9 m/s		+12

5 September, Friday. day, 16°; night, 11°; clear

6 September, sat

	756 mmHg		78%
	4.9 m/s		+12

6 September, Saturday. day, 16°; night, 11°; partly cloudy

7 September, sun

	754 mmHg		81%
	5.1 m/s		+12

7 September, Sunday. day, 17°; night, 11°; rain

8 September, mon

	753 mmHg		80%
	5.4 m/s		+11

8 September, Monday. day, 16°; night, 12°; rain

9 September, tue

	755 mmHg		80%
	5.1 m/s		+11

9 September, Tuesday. day, 15°; night, 11°; rain

10 September, wed

	756 mmHg		80%
	4.9 m/s		+11

10 September, Wednesday. day, 15°; night, 10°; partly cloudy

11 September, thu

	756 mmHg		79%
	5 m/s		+11

11 September, Thursday. day, 15°; night, 10°; partly cloudy

12 September, fri

	755 mmHg		80%
	5.1 m/s		+11

12 September, Friday. day, 15°; night, 10°; clear

13 September, sat

	755 mmHg		80%
	5 m/s		+11

13 September, Saturday. day, 15°; night, 10°; overcast

14 September, sun

	755 mmHg		81%
	5.2 m/s		+10

14 September, Sunday. day, 15°; night, 10°; rain

15 September, mon

	755 mmHg		80%
	5.1 m/s		+10

15 September, Monday. day, 15°; night, 10°; rain

16 September, tue

	756 mmHg		78%
	5.2 m/s		+10

16 September, Tuesday. day, 14°; night, 10°; clear

17 September, wed

	755 mmHg		76%
	5.3 m/s		+10

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

18 September, thu

	756 mmHg		77%
	5 m/s		+10

18 September, Thursday. day, 14°; night, 9°; clear

19 September, fri

	757 mmHg		79%
	5.2 m/s		+10

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

20 September, sat

	756 mmHg		79%
	5.1 m/s		+10

20 September, Saturday. day, 14°; night, 9°; rain

21 September, sun

	756 mmHg		80%
	5.2 m/s		+10

21 September, Sunday. day, 14°; night, 9°; clear

22 September, mon

	755 mmHg		82%
	5.1 m/s		+9

22 September, Monday. day, 13°; night, 9°; rain

23 September, tue

	754 mmHg		78%
	5.7 m/s		+9

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

24 September, wed

	756 mmHg		74%
	5.5 m/s		+9

24 September, Wednesday. day, 12°; night, 8°; clear

25 September, thu

	756 mmHg		78%
	4.9 m/s		+9

25 September, Thursday. day, 12°; night, 8°; partly cloudy

26 September, fri

	756 mmHg		82%
	4.5 m/s		+9

26 September, Friday. day, 12°; night, 8°; partly cloudy

27 September, sat

	755 mmHg		81%
	4.8 m/s		+9

27 September, Saturday. day, 13°; night, 8°; rain

28 September, sun

	755 mmHg		82%
	4.9 m/s		+9

28 September, Sunday. day, 13°; night, 9°; partly cloudy

29 September, mon

	755 mmHg		80%
	5.4 m/s		+9

29 September, Monday. day, 12°; night, 8°; rain

30 September, tue

	755 mmHg		80%
	5.5 m/s		+9

30 September, Tuesday. day, 12°; night, 7°; rain

1 October, wed

	755 mmHg		81%
	5.1 m/s		+9

1 October, Wednesday. day, 12°; night, 7°; clear

2 October, thu

	755 mmHg		80%
	5 m/s		+9

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

3 October, fri

	756 mmHg		76%
	5.4 m/s		+9

3 October, Friday. day, 11°; night, 7°; clear

4 October, sat

	758 mmHg		76%
	5.1 m/s		+8

4 October, Saturday. day, 11°; night, 6°; clear

Average data for 10 years

Baie-Comeau September

10

sunny days

12

days with precipitation

9

cloudy days

10 sunny days; 12 days with precipitation; 9 cloudy days;

79

%

air humidity

3.6

m/s

WindSW

104

mm of precipitation

(10% of annual average)

+10

°C

Water temperature

air humidity 79%; 104 millimeters of precipitation (10% of annual average); Wind south-westerly 3.6 Meters per second; Water temperature +10°

Weather graphs for September

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

SW

SW

SW

SW

SW

SW

SW

SW

S

SW

S

SW

SW

S

SW

SW

SW

SW

S

S

SW

S

SW

SW

S

S

S

S

S

SW

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

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26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Quebec
Saguenay
Wabush
Sainte-Foy
Bonaventure
Rimouski
Alma
Iles de la Madeleine
Riviere Du Loup

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 Baie-Comeau is typically warm. Average daily high temperature in September is about 14 degrees above zero. On average, Baie-Comeau has 12 rainy, 10 sunny, 7 partly cloudy, and 1 cloudy day in September. The rains are usually heavy. September as well as January, April, May, and October is considered the most uncomfortable time to visit Baie-Comeau.

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