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August weather forecast. Portorož: Yandex

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

	759 mmHg		70%
	4.4 m/s		+27

27 July, Sunday. day, 26°; night, 22°; clear

28 July, mon

	758 mmHg		72%
	5 m/s		+26

28 July, Monday. day, 26°; night, 22°; clear

29 July, tue

	759 mmHg		71%
	5.1 m/s		+26

29 July, Tuesday. day, 26°; night, 22°; partly cloudy

30 July, wed

	759 mmHg		71%
	5.2 m/s		+27

30 July, Wednesday. day, 26°; night, 22°; rain

31 July, thu

	759 mmHg		69%
	4.9 m/s		+27

31 July, Thursday. day, 27°; night, 22°; clear

1 August, fri

	759 mmHg		71%
	4.9 m/s		+27

1 August, Friday. day, 27°; night, 22°; clear

2 August, sat

	759 mmHg		71%
	4.9 m/s		+27

2 August, Saturday. day, 26°; night, 22°; clear

3 August, sun

	759 mmHg		73%
	4.69 m/s		+27

3 August, Sunday. day, 27°; night, 22°; rain

4 August, mon

	759 mmHg		71%
	4.9 m/s		+27

4 August, Monday. day, 26°; night, 22°; partly cloudy

5 August, tue

	759 mmHg		69%
	5.3 m/s		+28

5 August, Tuesday. day, 26°; night, 22°; rain

6 August, wed

	759 mmHg		69%
	5.1 m/s		+27

6 August, Wednesday. day, 26°; night, 22°; partly cloudy

7 August, thu

	759 mmHg		68%
	4.9 m/s		+28

7 August, Thursday. day, 26°; night, 22°; clear

8 August, fri

	759 mmHg		68%
	4.8 m/s		+27

8 August, Friday. day, 27°; night, 22°; clear

9 August, sat

	759 mmHg		69%
	5.2 m/s		+28

9 August, Saturday. day, 27°; night, 22°; clear

10 August, sun

	760 mmHg		68%
	5.6 m/s		+27

10 August, Sunday. day, 27°; night, 22°; clear

11 August, mon

	760 mmHg		68%
	5 m/s		+27

11 August, Monday. day, 26°; night, 22°; clear

12 August, tue

	759 mmHg		68%
	5.1 m/s		+27

12 August, Tuesday. day, 26°; night, 21°; clear

13 August, wed

	759 mmHg		70%
	4.9 m/s		+26

13 August, Wednesday. day, 26°; night, 22°; clear

14 August, thu

	759 mmHg		70%
	4.9 m/s		+26

14 August, Thursday. day, 26°; night, 21°; clear

15 August, fri

	759 mmHg		70%
	4.69 m/s		+27

15 August, Friday. day, 26°; night, 21°; clear

16 August, sat

	759 mmHg		70%
	4.6 m/s		+27

16 August, Saturday. day, 26°; night, 21°; clear

17 August, sun

	759 mmHg		71%
	4.5 m/s		+27

17 August, Sunday. day, 26°; night, 22°; clear

18 August, mon

	759 mmHg		72%
	4.8 m/s		+26

18 August, Monday. day, 26°; night, 22°; partly cloudy

19 August, tue

	760 mmHg		73%
	4.6 m/s		+27

19 August, Tuesday. day, 26°; night, 22°; rain

20 August, wed

	760 mmHg		72%
	4.6 m/s		+26

20 August, Wednesday. day, 26°; night, 22°; rain

21 August, thu

	760 mmHg		70%
	5.2 m/s		+27

21 August, Thursday. day, 26°; night, 21°; clear

22 August, fri

	760 mmHg		68%
	5 m/s		+26

22 August, Friday. day, 26°; night, 21°; clear

23 August, sat

	760 mmHg		69%
	5 m/s		+26

23 August, Saturday. day, 26°; night, 21°; clear

24 August, sun

	760 mmHg		70%
	4.9 m/s		+26

24 August, Sunday. day, 26°; night, 21°; clear

25 August, mon

	759 mmHg		71%
	5.1 m/s		+26

25 August, Monday. day, 25°; night, 21°; rain

26 August, tue

	759 mmHg		70%
	5.4 m/s		+26

26 August, Tuesday. day, 25°; night, 21°; clear

27 August, wed

	759 mmHg		70%
	4.9 m/s		+26

27 August, Wednesday. day, 25°; night, 21°; partly cloudy

28 August, thu

	759 mmHg		71%
	5.9 m/s		+26

28 August, Thursday. day, 25°; night, 20°; rain

29 August, fri

	759 mmHg		70%
	5.3 m/s		+26

29 August, Friday. day, 25°; night, 20°; partly cloudy

30 August, sat

	760 mmHg		69%
	5.5 m/s		+26

30 August, Saturday. day, 24°; night, 20°; rain

31 August, sun

	760 mmHg		68%
	5.3 m/s		+25

31 August, Sunday. day, 24°; night, 19°; rain

1 September, mon

	760 mmHg		69%
	5 m/s		+25

1 September, Monday. day, 23°; night, 19°; rain

2 September, tue

	761 mmHg		68%
	4.69 m/s		+25

2 September, Tuesday. day, 24°; night, 19°; clear

3 September, wed

	761 mmHg		70%
	4.9 m/s		+25

3 September, Wednesday. day, 24°; night, 19°; overcast

4 September, thu

	761 mmHg		71%
	5 m/s		+25

4 September, Thursday. day, 24°; night, 19°; partly cloudy

5 September, fri

	760 mmHg		69%
	5.4 m/s		+24

5 September, Friday. day, 23°; night, 19°; clear

6 September, sat

	761 mmHg		66%
	4.69 m/s		+24

6 September, Saturday. day, 23°; night, 19°; clear

Average data for 10 years

Portorož August

18

sunny days

8

days with precipitation

2

cloudy days

18 sunny days; 8 days with precipitation; 2 cloudy days;

70

%

air humidity

2.9

m/s

WindSE

97

mm of precipitation

(7% of annual average)

+27

°C

Water temperature

air humidity 70%; 97 millimeters of precipitation (7% of annual average); Wind south-easterly 2.9 Meters per second; Water temperature +27°

Weather graphs for August

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

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SE

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SE

SE

SE

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SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

E

SE

SE

SE

SE

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SE

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SE

E

E

1

Average data for 10 years

2

3

4

5

6

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9

10

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31

Daytime temperature

Night-time temperature

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

August in Portorož is the sunniest and the warmest month of the year. In August, the weather in Portorož is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Portorož has 18 sunny, 8 rainy, and 5 partly cloudy days in August. The rains are usually heavy. August as well as July is considered the most comfortable time to visit Portorož.

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