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August weather forecast in Trondheim

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

	752 mmHg		75%
	3.3 m/s		+14

27 July, Sunday. day, 20°; night, 12°; clear

28 July, mon

	752 mmHg		75%
	3.3 m/s		+14

28 July, Monday. day, 20°; night, 12°; partly cloudy

29 July, tue

	752 mmHg		75%
	3 m/s		+15

29 July, Tuesday. day, 20°; night, 12°; overcast

30 July, wed

	751 mmHg		76%
	3.5 m/s		+14

30 July, Wednesday. day, 20°; night, 12°; partly cloudy

31 July, thu

	751 mmHg		77%
	3.6 m/s		+14

31 July, Thursday. day, 19°; night, 11°; partly cloudy

1 August, fri

	752 mmHg		77%
	3.1 m/s		+14

1 August, Friday. day, 18°; night, 11°; partly cloudy

2 August, sat

	752 mmHg		77%
	3.2 m/s		+14

2 August, Saturday. day, 19°; night, 10°; clear

3 August, sun

	752 mmHg		76%
	3.3 m/s		+14

3 August, Sunday. day, 19°; night, 11°; partly cloudy

4 August, mon

	752 mmHg		77%
	3.4 m/s		+14

4 August, Monday. day, 19°; night, 11°; rain

5 August, tue

	753 mmHg		78%
	3.2 m/s		+14

5 August, Tuesday. day, 19°; night, 11°; partly cloudy

6 August, wed

	753 mmHg		78%
	3.3 m/s		+14

6 August, Wednesday. day, 19°; night, 11°; rain

7 August, thu

	752 mmHg		77%
	3.5 m/s		+14

7 August, Thursday. day, 19°; night, 12°; overcast

8 August, fri

	752 mmHg		77%
	3.6 m/s		+14

8 August, Friday. day, 19°; night, 11°; rain

9 August, sat

	752 mmHg		77%
	3.5 m/s		+14

9 August, Saturday. day, 18°; night, 11°; overcast

10 August, sun

	752 mmHg		75%
	3.6 m/s		+14

10 August, Sunday. day, 19°; night, 11°; partly cloudy

11 August, mon

	752 mmHg		77%
	3.7 m/s		+14

11 August, Monday. day, 18°; night, 11°; rain

12 August, tue

	752 mmHg		78%
	3.1 m/s		+14

12 August, Tuesday. day, 18°; night, 11°; overcast

13 August, wed

	751 mmHg		77%
	3.3 m/s		+14

13 August, Wednesday. day, 18°; night, 10°; overcast

14 August, thu

	751 mmHg		77%
	3.6 m/s		+14

14 August, Thursday. day, 18°; night, 11°; partly cloudy

15 August, fri

	751 mmHg		77%
	3.7 m/s		+13

15 August, Friday. day, 18°; night, 11°; rain

16 August, sat

	751 mmHg		79%
	3.3 m/s		+14

16 August, Saturday. day, 18°; night, 11°; rain

17 August, sun

	751 mmHg		77%
	3.2 m/s		+14

17 August, Sunday. day, 18°; night, 10°; clear

18 August, mon

	750 mmHg		77%
	3.6 m/s		+14

18 August, Monday. day, 18°; night, 11°; clear

19 August, tue

	751 mmHg		77%
	3.4 m/s		+14

19 August, Tuesday. day, 18°; night, 11°; clear

20 August, wed

	751 mmHg		79%
	3.3 m/s		+14

20 August, Wednesday. day, 18°; night, 11°; rain

21 August, thu

	752 mmHg		80%
	3.7 m/s		+14

21 August, Thursday. day, 17°; night, 10°; rain

22 August, fri

	752 mmHg		80%
	3.4 m/s		+13

22 August, Friday. day, 17°; night, 10°; rain

23 August, sat

	753 mmHg		79%
	3.2 m/s		+14

23 August, Saturday. day, 17°; night, 10°; partly cloudy

24 August, sun

	752 mmHg		76%
	3.9 m/s		+14

24 August, Sunday. day, 17°; night, 10°; partly cloudy

25 August, mon

	751 mmHg		77%
	4.3 m/s		+14

25 August, Monday. day, 17°; night, 10°; rain

26 August, tue

	751 mmHg		79%
	3.6 m/s		+14

26 August, Tuesday. day, 16°; night, 10°; rain

27 August, wed

	751 mmHg		79%
	3.8 m/s		+13

27 August, Wednesday. day, 16°; night, 9°; rain

28 August, thu

	751 mmHg		79%
	3.8 m/s		+14

28 August, Thursday. day, 16°; night, 10°; rain

29 August, fri

	751 mmHg		77%
	3.7 m/s		+13

29 August, Friday. day, 17°; night, 10°; rain

30 August, sat

	752 mmHg		80%
	3.8 m/s		+13

30 August, Saturday. day, 16°; night, 9°; rain

31 August, sun

	754 mmHg		82%
	3.4 m/s		+13

31 August, Sunday. day, 15°; night, 9°; rain

1 September, mon

	754 mmHg		77%
	3.2 m/s		+13

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

2 September, tue

	753 mmHg		78%
	3.6 m/s		+13

2 September, Tuesday. day, 16°; night, 8°; overcast

3 September, wed

	753 mmHg		79%
	4 m/s		+13

3 September, Wednesday. day, 16°; night, 9°; rain

4 September, thu

	753 mmHg		79%
	3.7 m/s		+13

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

5 September, fri

	753 mmHg		79%
	3.5 m/s		+13

5 September, Friday. day, 16°; night, 9°; clear

6 September, sat

	753 mmHg		79%
	3.3 m/s		+13

6 September, Saturday. day, 16°; night, 9°; overcast

Average data for 10 years

Trondheim August

4

sunny days

16

days with precipitation

14

cloudy days

4 sunny days; 16 days with precipitation; 14 cloudy days;

78

%

air humidity

2.2

m/s

WindS

115

mm of precipitation

(10% of annual average)

+14

°C

Water temperature

air humidity 78%; 115 millimeters of precipitation (10% of annual average); Wind southerly 2.2 Meters per second; Water temperature +14°

Weather graphs for August

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

SW

S

S

SW

S

S

SW

S

S

S

SW

S

S

SW

S

S

S

S

S

S

SW

SW

S

S

S

SW

S

S

S

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

31

Daytime temperature

Night-time temperature

Cities near you

Oslo
Gjovik
Are
Lillehammer
Geiranger
Geilo
Molde
Rjukan
Fagernes

Cities with similar weather in August

Helsinki
Tallinn
Stockholm
Sydney
Oslo
San Francisco
Palanga
Dublin
Capetown

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

In August, the weather in Trondheim is typically warm. Average daily high temperature in August is about 18 degrees above zero. On average, Trondheim has 16 rainy, 7 partly cloudy, 4 sunny, and 4 cloudy days in August. The rains are usually heavy.

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