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September weather forecast in Cold Bay

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

	748 mmHg		86%
	8.6 m/s		+10

31 August, Sunday. day, 12°; night, 9°; rain

1 September, mon

	749 mmHg		86%
	7.8 m/s		+11

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

2 September, tue

	749 mmHg		87%
	7.4 m/s		+11

2 September, Tuesday. day, 12°; night, 9°; overcast

3 September, wed

	748 mmHg		86%
	7.6 m/s		+10

3 September, Wednesday. day, 12°; night, 9°; overcast

4 September, thu

	748 mmHg		87%
	7.9 m/s		+10

4 September, Thursday. day, 12°; night, 9°; rain

5 September, fri

	748 mmHg		86%
	7.4 m/s		+10

5 September, Friday. day, 12°; night, 8°; overcast

6 September, sat

	748 mmHg		86%
	8.3 m/s		+10

6 September, Saturday. day, 11°; night, 8°; overcast

7 September, sun

	747 mmHg		87%
	8.1 m/s		+10

7 September, Sunday. day, 11°; night, 9°; rain

8 September, mon

	747 mmHg		86%
	7.5 m/s		+10

8 September, Monday. day, 11°; night, 8°; overcast

9 September, tue

	746 mmHg		86%
	7.5 m/s		+10

9 September, Tuesday. day, 11°; night, 8°; rain

10 September, wed

	747 mmHg		87%
	8 m/s		+10

10 September, Wednesday. day, 11°; night, 8°; overcast

11 September, thu

	747 mmHg		87%
	8.39 m/s		+10

11 September, Thursday. day, 11°; night, 8°; rain

12 September, fri

	746 mmHg		85%
	8.39 m/s		+10

12 September, Friday. day, 11°; night, 8°; rain

13 September, sat

	748 mmHg		84%
	8.1 m/s		+10

13 September, Saturday. day, 11°; night, 8°; partly cloudy

14 September, sun

	748 mmHg		87%
	8.2 m/s		+10

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

15 September, mon

	747 mmHg		86%
	7.7 m/s		+10

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

16 September, tue

	745 mmHg		86%
	8.3 m/s		+10

16 September, Tuesday. day, 11°; night, 8°; rain

17 September, wed

	745 mmHg		85%
	8.8 m/s		+10

17 September, Wednesday. day, 10°; night, 7°; rain

18 September, thu

	745 mmHg		84%
	8.7 m/s		+10

18 September, Thursday. day, 10°; night, 7°; rain

19 September, fri

	746 mmHg		83%
	8.3 m/s		+10

19 September, Friday. day, 10°; night, 7°; rain

20 September, sat

	746 mmHg		82%
	8.89 m/s		+10

20 September, Saturday. day, 10°; night, 7°; rain

21 September, sun

	745 mmHg		82%
	8.7 m/s		+10

21 September, Sunday. day, 10°; night, 7°; rain

22 September, mon

	743 mmHg		82%
	8.7 m/s		+9

22 September, Monday. day, 10°; night, 7°; rain

23 September, tue

	744 mmHg		80%
	8.89 m/s		+9

23 September, Tuesday. day, 9°; night, 6°; partly cloudy

24 September, wed

	745 mmHg		81%
	8.7 m/s		+9

24 September, Wednesday. day, 9°; night, 6°; rain

25 September, thu

	746 mmHg		80%
	8.39 m/s		+9

25 September, Thursday. day, 9°; night, 6°; clear

26 September, fri

	747 mmHg		80%
	8.1 m/s		+9

26 September, Friday. day, 9°; night, 6°; rain

27 September, sat

	747 mmHg		81%
	8.5 m/s		+9

27 September, Saturday. day, 9°; night, 6°; rain

28 September, sun

	747 mmHg		82%
	8.5 m/s		+9

28 September, Sunday. day, 9°; night, 6°; rain

29 September, mon

	749 mmHg		81%
	9 m/s		+9

29 September, Monday. day, 9°; night, 6°; rain

30 September, tue

	747 mmHg		81%
	9.6 m/s		+9

30 September, Tuesday. day, 9°; night, 6°; rain

1 October, wed

	747 mmHg		82%
	9.2 m/s		+9

1 October, Wednesday. day, 9°; night, 6°; partly cloudy

2 October, thu

	747 mmHg		82%
	8.8 m/s		+9

2 October, Thursday. day, 9°; night, 6°; rain

3 October, fri

	746 mmHg		82%
	8.1 m/s		+9

3 October, Friday. day, 9°; night, 6°; overcast

4 October, sat

	744 mmHg		82%
	8.6 m/s		+9

4 October, Saturday. day, 9°; night, 6°; partly cloudy

Average data for 10 years

Cold Bay September

1

sunny day

21

days with precipitation

17

cloudy days

1 sunny day; 21 days with precipitation; 17 cloudy days;

84

%

air humidity

5.7

m/s

WindSW

109

mm of precipitation

(10% of annual average)

+10

°C

Water temperature

air humidity 84%; 109 millimeters of precipitation (10% of annual average); Wind south-westerly 5.7 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

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

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

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Akutan
Dutch Harbor
Alakanuk
Aniak
Kotlik
King Salmon
Sand Point
Chignik Lagoon
Chignik

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Cholpon-Ata
Reykyavik
Oslo
Yurmala
Palanga

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

September in Cold Bay is the rainiest month of the year. In September, the weather in Cold Bay is typically warm. Average daily high temperature in September is about 10 degrees above zero. On average, Cold Bay has 21 rainy, 6 cloudy, 2 partly cloudy, and 1 sunny day in September. The rains are usually heavy. September as well as April, May, June, and July is considered the most uncomfortable time to visit Cold Bay.

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