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August weather forecast in Longyearbyen

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

	734 mmHg		81%
	3.6 m/s		+2

27 July, Sunday. day, 7°; night, 4°; partly cloudy

28 July, mon

	734 mmHg		82%
	3.7 m/s		+2

28 July, Monday. day, 6°; night, 4°; rain

29 July, tue

	734 mmHg		84%
	3.8 m/s		+2

29 July, Tuesday. day, 6°; night, 4°; rain

30 July, wed

	734 mmHg		83%
	3.9 m/s		+2

30 July, Wednesday. day, 6°; night, 4°; overcast

31 July, thu

	735 mmHg		81%
	3.6 m/s		+2

31 July, Thursday. day, 7°; night, 4°; overcast

1 August, fri

	734 mmHg		82%
	3.6 m/s		+1

1 August, Friday. day, 7°; night, 4°; partly cloudy

2 August, sat

	734 mmHg		82%
	3.3 m/s		+2

2 August, Saturday. day, 7°; night, 4°; overcast

3 August, sun

	734 mmHg		83%
	3.4 m/s		+2

3 August, Sunday. day, 6°; night, 4°; overcast

4 August, mon

	734 mmHg		83%
	3.3 m/s		+3

4 August, Monday. day, 7°; night, 4°; overcast

5 August, tue

	734 mmHg		82%
	3.5 m/s		+2

5 August, Tuesday. day, 6°; night, 4°; overcast

6 August, wed

	733 mmHg		82%
	3.5 m/s		+2

6 August, Wednesday. day, 6°; night, 4°; partly cloudy

7 August, thu

	733 mmHg		82%
	3.6 m/s		+2

7 August, Thursday. day, 6°; night, 4°; rain

8 August, fri

	733 mmHg		83%
	3.4 m/s		+3

8 August, Friday. day, 6°; night, 4°; rain

9 August, sat

	733 mmHg		82%
	3.3 m/s		+2

9 August, Saturday. day, 6°; night, 4°; overcast

10 August, sun

	733 mmHg		83%
	3.3 m/s		+3

10 August, Sunday. day, 6°; night, 3°; rain

11 August, mon

	732 mmHg		84%
	3.6 m/s		+2

11 August, Monday. day, 6°; night, 3°; rain

12 August, tue

	732 mmHg		84%
	3.6 m/s		+2

12 August, Tuesday. day, 6°; night, 4°; overcast

13 August, wed

	732 mmHg		83%
	3.5 m/s		+3

13 August, Wednesday. day, 6°; night, 3°; rain

14 August, thu

	732 mmHg		83%
	3.5 m/s		+3

14 August, Thursday. day, 5°; night, 3°; overcast

15 August, fri

	732 mmHg		84%
	3.6 m/s		+3

15 August, Friday. day, 5°; night, 3°; overcast

16 August, sat

	732 mmHg		84%
	3.9 m/s		+3

16 August, Saturday. day, 5°; night, 3°; rain

17 August, sun

	732 mmHg		83%
	4 m/s		+3

17 August, Sunday. day, 5°; night, 3°; overcast

18 August, mon

	731 mmHg		85%
	3.8 m/s		+3

18 August, Monday. day, 5°; night, 3°; overcast

19 August, tue

	731 mmHg		84%
	3.8 m/s		+3

19 August, Tuesday. day, 5°; night, 2°; overcast

20 August, wed

	731 mmHg		84%
	3.7 m/s		+3

20 August, Wednesday. day, 4°; night, 2°; rain

21 August, thu

	731 mmHg		84%
	3.6 m/s		+3

21 August, Thursday. day, 4°; night, 2°; partly cloudy

22 August, fri

	731 mmHg		84%
	3.2 m/s		+3

22 August, Friday. day, 4°; night, 2°; partly cloudy

23 August, sat

	732 mmHg		84%
	3.5 m/s		+2

23 August, Saturday. day, 4°; night, 2°; clear

24 August, sun

	733 mmHg		85%
	3.2 m/s		+3

24 August, Sunday. day, 5°; night, 2°; overcast

25 August, mon

	732 mmHg		85%
	3.6 m/s		+3

25 August, Monday. day, 4°; night, 2°; rain

26 August, tue

	732 mmHg		84%
	3.6 m/s		+3

26 August, Tuesday. day, 4°; night, 2°; clear

27 August, wed

	732 mmHg		84%
	3.6 m/s		+3

27 August, Wednesday. day, 4°; night, 1°; partly cloudy

28 August, thu

	732 mmHg		85%
	3.7 m/s		+2

28 August, Thursday. day, 4°; night, 1°; rain

29 August, fri

	731 mmHg		85%
	3.8 m/s		+2

29 August, Friday. day, 4°; night, 1°; rain

30 August, sat

	730 mmHg		85%
	3.9 m/s		+2

30 August, Saturday. day, 4°; night, 2°; rain

31 August, sun

	731 mmHg		84%
	3.9 m/s		+2

31 August, Sunday. day, 3°; night, 1°; rain

1 September, mon

	733 mmHg		84%
	3.7 m/s		+2

1 September, Monday. day, 3°; night, 1°; clear

2 September, tue

	732 mmHg		86%
	3.9 m/s		+2

2 September, Tuesday. day, 3°; night, 1°; rain

3 September, wed

	729 mmHg		87%
	3.6 m/s		+2

3 September, Wednesday. day, 3°; night, 1°; rain

4 September, thu

	729 mmHg		87%
	3.5 m/s		+2

4 September, Thursday. day, 3°; night, 1°; rain

5 September, fri

	730 mmHg		87%
	3.3 m/s		+2

5 September, Friday. day, 3°; night, 1°; overcast

6 September, sat

	730 mmHg		86%
	3.7 m/s		+2

6 September, Saturday. day, 3°; night, 1°; overcast

Average data for 10 years

Longyearbyen August

2

sunny days

12

days with precipitation

21

cloudy days

2 sunny days; 12 days with precipitation; 21 cloudy days;

84

%

air humidity

2.5

m/s

WindS

57

mm of precipitation

(11% of annual average)

+3

°C

Water temperature

air humidity 84%; 57 millimeters of precipitation (11% of annual average); Wind southerly 2.5 Meters per second; Water temperature +3°

Weather graphs for August

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

S

S

SW

SW

SW

S

S

SW

S

S

S

S

S

S

S

S

S

S

S

SW

S

S

S

S

S

S

S

S

SE

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

Tromsø
Bodø
Andenes
Hammerfest
Narvik
Ny-Alesund
Alta
Svolver
Kiruna

Cities with similar weather in August

Wellington
Nuuk
Alert
Ushuaia
Christchurch
Hobart
Punta-Arenas
San-Carlos-de-Bariloche
Puerto Mont

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

In August, the weather in Longyearbyen is typically cold. Average daily high temperature in August is about 5 degrees above zero. On average, Longyearbyen has 13 cloudy, 11 rainy, 5 partly cloudy, and 2 sunny days in August. The rains are usually moderate. August as well as January, February, March, and April is considered the most uncomfortable time to visit Longyearbyen.

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