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September weather forecast in Hay River

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

	743 mmHg		73%
	6.2 m/s		+9

31 August, Sunday. day, 16°; night, 12°; partly cloudy

1 September, mon

	742 mmHg		75%
	6.5 m/s		+9

1 September, Monday. day, 16°; night, 11°; rain

2 September, tue

	743 mmHg		74%
	6.1 m/s		+9

2 September, Tuesday. day, 16°; night, 11°; clear

3 September, wed

	744 mmHg		75%
	6.5 m/s		+8

3 September, Wednesday. day, 16°; night, 11°; rain

4 September, thu

	744 mmHg		75%
	6.1 m/s		+8

4 September, Thursday. day, 16°; night, 11°; partly cloudy

5 September, fri

	745 mmHg		74%
	6.2 m/s		+8

5 September, Friday. day, 16°; night, 11°; partly cloudy

6 September, sat

	746 mmHg		73%
	6.2 m/s		+8

6 September, Saturday. day, 15°; night, 10°; clear

7 September, sun

	745 mmHg		73%
	6.1 m/s		+8

7 September, Sunday. day, 16°; night, 11°; partly cloudy

8 September, mon

	744 mmHg		71%
	5.8 m/s		+8

8 September, Monday. day, 16°; night, 11°; partly cloudy

9 September, tue

	744 mmHg		73%
	6.2 m/s		+8

9 September, Tuesday. day, 15°; night, 10°; clear

10 September, wed

	744 mmHg		73%
	6.7 m/s		+8

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

11 September, thu

	744 mmHg		73%
	6.9 m/s		+8

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

12 September, fri

	745 mmHg		73%
	6.5 m/s		+8

12 September, Friday. day, 14°; night, 9°; clear

13 September, sat

	745 mmHg		74%
	5.6 m/s		+8

13 September, Saturday. day, 14°; night, 9°; clear

14 September, sun

	745 mmHg		75%
	6 m/s		+7

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

15 September, mon

	745 mmHg		74%
	6.8 m/s		+7

15 September, Monday. day, 13°; night, 9°; partly cloudy

16 September, tue

	746 mmHg		75%
	6.7 m/s		+7

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

17 September, wed

	744 mmHg		75%
	6.3 m/s		+7

17 September, Wednesday. day, 12°; night, 8°; rain

18 September, thu

	743 mmHg		75%
	6.6 m/s		+7

18 September, Thursday. day, 12°; night, 8°; rain

19 September, fri

	743 mmHg		74%
	6.2 m/s		+7

19 September, Friday. day, 12°; night, 8°; rain

20 September, sat

	744 mmHg		76%
	6 m/s		+7

20 September, Saturday. day, 12°; night, 7°; overcast

21 September, sun

	744 mmHg		73%
	6.1 m/s		+6

21 September, Sunday. day, 12°; night, 7°; overcast

22 September, mon

	743 mmHg		73%
	6.1 m/s		+6

22 September, Monday. day, 13°; night, 8°; clear

23 September, tue

	741 mmHg		72%
	6.9 m/s		+6

23 September, Tuesday. day, 13°; night, 8°; clear

24 September, wed

	741 mmHg		75%
	6.8 m/s		+6

24 September, Wednesday. day, 12°; night, 8°; partly cloudy

25 September, thu

	741 mmHg		76%
	6.6 m/s		+6

25 September, Thursday. day, 11°; night, 7°; rain

26 September, fri

	742 mmHg		78%
	6.6 m/s		+6

26 September, Friday. day, 11°; night, 7°; overcast

27 September, sat

	743 mmHg		76%
	7.2 m/s		+6

27 September, Saturday. day, 10°; night, 6°; overcast

28 September, sun

	743 mmHg		75%
	7.3 m/s		+6

28 September, Sunday. day, 10°; night, 6°; rain

29 September, mon

	744 mmHg		76%
	6.4 m/s		+6

29 September, Monday. day, 9°; night, 5°; overcast

30 September, tue

	745 mmHg		76%
	6.7 m/s		+6

30 September, Tuesday. day, 9°; night, 5°; partly cloudy

1 October, wed

	745 mmHg		74%
	6.8 m/s		+5

1 October, Wednesday. day, 8°; night, 4°; partly cloudy

2 October, thu

	746 mmHg		76%
	6.8 m/s		+5

2 October, Thursday. day, 8°; night, 4°; rain

3 October, fri

	747 mmHg		73%
	6.5 m/s		+5

3 October, Friday. day, 8°; night, 4°; partly cloudy

4 October, sat

	746 mmHg		74%
	6.2 m/s		+5

4 October, Saturday. day, 7°; night, 3°; clear

Average data for 10 years

Hay River September

8

sunny days

9

days with precipitation

9

cloudy days

8 sunny days; 9 days with precipitation; 9 cloudy days;

74

%

air humidity

4.6

m/s

WindS

45

mm of precipitation

(12% of annual average)

+7

°C

Water temperature

air humidity 74%; 45 millimeters of precipitation (12% of annual average); Wind southerly 4.6 Meters per second; Water temperature +7°

Weather graphs for September

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

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S

S

S

S

S

S

S

SW

S

S

SW

S

S

SW

S

S

S

S

SW

S

S

SW

SW

SW

S

SW

SW

SW

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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27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Edmonton
Yellowknife
Dawson Creek
Grande Prairie
Snare Lake
Peace River
Fort Saint John
Rainbow Lake
Ft McMurray

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Cholpon-Ata
Oslo
Yurmala
Palanga
Dublin

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

September in Hay River is the windiest month of the year. In September, the weather in Hay River is typically warm. Average daily high temperature in September is about 13 degrees above zero. On average, Hay River has 9 rainy, 8 sunny, 8 partly cloudy, and 5 cloudy days in September. The rains are usually light.

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