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August weather forecast in Anchorage

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

27 July, sun

	760 mmHg		80%
	2.7 m/s		+12

27 July, Sunday. day, 16°; night, 12°; rain

28 July, mon

	761 mmHg		80%
	2.7 m/s		+13

28 July, Monday. day, 17°; night, 12°; partly cloudy

29 July, tue

	761 mmHg		82%
	2.6 m/s		+13

29 July, Tuesday. day, 17°; night, 12°; overcast

30 July, wed

	761 mmHg		82%
	2.6 m/s		+12

30 July, Wednesday. day, 17°; night, 12°; rain

31 July, thu

	761 mmHg		82%
	2.5 m/s		+13

31 July, Thursday. day, 17°; night, 12°; rain

1 August, fri

	762 mmHg		81%
	2.6 m/s		+13

1 August, Friday. day, 17°; night, 12°; partly cloudy

2 August, sat

	762 mmHg		80%
	2.9 m/s		+13

2 August, Saturday. day, 17°; night, 12°; overcast

3 August, sun

	761 mmHg		80%
	3.1 m/s		+13

3 August, Sunday. day, 17°; night, 12°; partly cloudy

4 August, mon

	761 mmHg		79%
	2.8 m/s		+12

4 August, Monday. day, 17°; night, 13°; partly cloudy

5 August, tue

	760 mmHg		81%
	2.7 m/s		+13

5 August, Tuesday. day, 17°; night, 12°; rain

6 August, wed

	760 mmHg		80%
	2.9 m/s		+12

6 August, Wednesday. day, 17°; night, 13°; overcast

7 August, thu

	759 mmHg		80%
	2.8 m/s		+12

7 August, Thursday. day, 17°; night, 12°; clear

8 August, fri

	759 mmHg		80%
	2.8 m/s		+12

8 August, Friday. day, 17°; night, 12°; rain

9 August, sat

	759 mmHg		80%
	2.9 m/s		+12

9 August, Saturday. day, 17°; night, 12°; rain

10 August, sun

	759 mmHg		81%
	2.7 m/s		+12

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

11 August, mon

	760 mmHg		80%
	2.7 m/s		+12

11 August, Monday. day, 16°; night, 12°; overcast

12 August, tue

	759 mmHg		82%
	2.8 m/s		+12

12 August, Tuesday. day, 16°; night, 12°; rain

13 August, wed

	759 mmHg		82%
	2.8 m/s		+12

13 August, Wednesday. day, 17°; night, 12°; overcast

14 August, thu

	760 mmHg		82%
	2.8 m/s		+12

14 August, Thursday. day, 17°; night, 12°; rain

15 August, fri

	759 mmHg		81%
	2.7 m/s		+12

15 August, Friday. day, 16°; night, 12°; overcast

16 August, sat

	759 mmHg		81%
	3.1 m/s		+12

16 August, Saturday. day, 17°; night, 12°; rain

17 August, sun

	759 mmHg		80%
	3.1 m/s		+12

17 August, Sunday. day, 16°; night, 12°; clear

18 August, mon

	759 mmHg		80%
	2.9 m/s		+12

18 August, Monday. day, 16°; night, 12°; clear

19 August, tue

	759 mmHg		79%
	3.1 m/s		+12

19 August, Tuesday. day, 16°; night, 11°; rain

20 August, wed

	757 mmHg		80%
	3.2 m/s		+12

20 August, Wednesday. day, 16°; night, 11°; rain

21 August, thu

	756 mmHg		82%
	2.7 m/s		+12

21 August, Thursday. day, 15°; night, 11°; rain

22 August, fri

	756 mmHg		81%
	2.8 m/s		+12

22 August, Friday. day, 16°; night, 11°; partly cloudy

23 August, sat

	756 mmHg		80%
	2.7 m/s		+12

23 August, Saturday. day, 16°; night, 11°; rain

24 August, sun

	756 mmHg		81%
	2.7 m/s		+12

24 August, Sunday. day, 16°; night, 11°; rain

25 August, mon

	756 mmHg		82%
	3 m/s		+12

25 August, Monday. day, 15°; night, 11°; rain

26 August, tue

	756 mmHg		81%
	2.7 m/s		+12

26 August, Tuesday. day, 15°; night, 11°; rain

27 August, wed

	756 mmHg		81%
	2.8 m/s		+11

27 August, Wednesday. day, 15°; night, 11°; rain

28 August, thu

	757 mmHg		78%
	3.2 m/s		+12

28 August, Thursday. day, 15°; night, 10°; clear

29 August, fri

	756 mmHg		80%
	2.9 m/s		+12

29 August, Friday. day, 15°; night, 10°; clear

30 August, sat

	756 mmHg		79%
	3.2 m/s		+12

30 August, Saturday. day, 15°; night, 10°; rain

31 August, sun

	755 mmHg		80%
	3.3 m/s		+11

31 August, Sunday. day, 15°; night, 10°; rain

1 September, mon

	755 mmHg		80%
	3.2 m/s		+11

1 September, Monday. day, 14°; night, 10°; rain

2 September, tue

	756 mmHg		80%
	3.2 m/s		+12

2 September, Tuesday. day, 14°; night, 10°; rain

3 September, wed

	757 mmHg		81%
	3.1 m/s		+11

3 September, Wednesday. day, 14°; night, 10°; partly cloudy

4 September, thu

	757 mmHg		80%
	2.9 m/s		+11

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

5 September, fri

	757 mmHg		81%
	2.9 m/s		+12

5 September, Friday. day, 14°; night, 10°; rain

6 September, sat

	757 mmHg		80%
	3.2 m/s		+11

6 September, Saturday. day, 14°; night, 10°; rain

Average data for 10 years

Anchorage August

5

sunny days

17

days with precipitation

14

cloudy days

5 sunny days; 17 days with precipitation; 14 cloudy days;

81

%

air humidity

1.8

m/s

WindS

121

mm of precipitation

(14% of annual average)

+12

°C

Water temperature

air humidity 81%; 121 millimeters of precipitation (14% of annual average); Wind southerly 1.8 Meters per second; Water temperature +12°

Weather graphs for August

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

SW

S

S

S

S

S

S

SW

S

S

S

S

S

S

S

S

S

S

S

SE

S

S

S

S

S

S

S

S

S

S

S

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

31

Daytime temperature

Night-time temperature

Cities near you

Fairbanks
Kodiak
Tanana
Kenai
McGrath
Kudjak Island
Wasilla
Soldotna
Port Alsworth

Cities with similar weather in August

Tallinn
Cholpon-Ata
Sydney
Oslo
San Francisco
Palanga
Dublin
Capetown
Looe

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

In August, the weather in Anchorage is typically warm. Average daily high temperature in August is about 16 degrees above zero. On average, Anchorage has 17 rainy, 5 sunny, 5 cloudy, and 4 partly cloudy days in August. The rains are usually heavy. August as well as July, September, and October is considered the most uncomfortable time to visit Anchorage.

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