10 day forecast Monthly forecast Weather map

City or area

Go to comparison

August weather forecast in Porto

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

	762 mmHg		81%
	6.8 m/s		+19

27 July, Sunday. day, 22°; night, 18°; clear

28 July, mon

	763 mmHg		80%
	6.4 m/s		+19

28 July, Monday. day, 23°; night, 18°; clear

29 July, tue

	763 mmHg		81%
	6 m/s		+19

29 July, Tuesday. day, 23°; night, 18°; clear

30 July, wed

	762 mmHg		79%
	6.3 m/s		+19

30 July, Wednesday. day, 23°; night, 18°; clear

31 July, thu

	762 mmHg		81%
	6.5 m/s		+19

31 July, Thursday. day, 22°; night, 18°; clear

1 August, fri

	762 mmHg		82%
	6.6 m/s		+18

1 August, Friday. day, 22°; night, 17°; clear

2 August, sat

	763 mmHg		80%
	6.6 m/s		+19

2 August, Saturday. day, 22°; night, 17°; clear

3 August, sun

	763 mmHg		80%
	6.4 m/s		+19

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

4 August, mon

	763 mmHg		80%
	6 m/s		+19

4 August, Monday. day, 22°; night, 18°; clear

5 August, tue

	763 mmHg		79%
	6.1 m/s		+19

5 August, Tuesday. day, 23°; night, 18°; clear

6 August, wed

	762 mmHg		79%
	6.2 m/s		+19

6 August, Wednesday. day, 23°; night, 18°; partly cloudy

7 August, thu

	762 mmHg		78%
	6.6 m/s		+19

7 August, Thursday. day, 23°; night, 18°; clear

8 August, fri

	761 mmHg		77%
	6.5 m/s		+19

8 August, Friday. day, 23°; night, 18°; clear

9 August, sat

	762 mmHg		78%
	6.1 m/s		+19

9 August, Saturday. day, 23°; night, 18°; clear

10 August, sun

	762 mmHg		79%
	5.8 m/s		+19

10 August, Sunday. day, 23°; night, 18°; clear

11 August, mon

	763 mmHg		80%
	6 m/s		+19

11 August, Monday. day, 23°; night, 18°; clear

12 August, tue

	763 mmHg		79%
	6.3 m/s		+19

12 August, Tuesday. day, 23°; night, 18°; clear

13 August, wed

	763 mmHg		79%
	6.1 m/s		+19

13 August, Wednesday. day, 23°; night, 18°; clear

14 August, thu

	762 mmHg		80%
	6 m/s		+19

14 August, Thursday. day, 22°; night, 18°; partly cloudy

15 August, fri

	762 mmHg		81%
	6 m/s		+18

15 August, Friday. day, 22°; night, 18°; rain

16 August, sat

	762 mmHg		83%
	6.1 m/s		+18

16 August, Saturday. day, 22°; night, 17°; rain

17 August, sun

	762 mmHg		83%
	6.3 m/s		+18

17 August, Sunday. day, 22°; night, 17°; partly cloudy

18 August, mon

	762 mmHg		83%
	6.3 m/s		+19

18 August, Monday. day, 21°; night, 17°; partly cloudy

19 August, tue

	762 mmHg		80%
	6.6 m/s		+19

19 August, Tuesday. day, 22°; night, 18°; rain

20 August, wed

	763 mmHg		78%
	6.4 m/s		+19

20 August, Wednesday. day, 23°; night, 18°; clear

21 August, thu

	763 mmHg		79%
	5.8 m/s		+19

21 August, Thursday. day, 23°; night, 17°; clear

22 August, fri

	763 mmHg		80%
	6 m/s		+19

22 August, Friday. day, 23°; night, 18°; clear

23 August, sat

	762 mmHg		81%
	6.5 m/s		+19

23 August, Saturday. day, 23°; night, 18°; clear

24 August, sun

	762 mmHg		80%
	6.1 m/s		+19

24 August, Sunday. day, 22°; night, 18°; partly cloudy

25 August, mon

	762 mmHg		80%
	6.2 m/s		+19

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

26 August, tue

	762 mmHg		82%
	5.9 m/s		+19

26 August, Tuesday. day, 22°; night, 17°; partly cloudy

27 August, wed

	762 mmHg		82%
	6 m/s		+19

27 August, Wednesday. day, 22°; night, 18°; partly cloudy

28 August, thu

	762 mmHg		81%
	6.2 m/s		+19

28 August, Thursday. day, 22°; night, 17°; rain

29 August, fri

	763 mmHg		80%
	6.1 m/s		+19

29 August, Friday. day, 22°; night, 17°; clear

30 August, sat

	762 mmHg		79%
	5.5 m/s		+19

30 August, Saturday. day, 22°; night, 17°; clear

31 August, sun

	762 mmHg		79%
	5.7 m/s		+19

31 August, Sunday. day, 22°; night, 18°; overcast

1 September, mon

	762 mmHg		77%
	6.1 m/s		+19

1 September, Monday. day, 23°; night, 18°; clear

2 September, tue

	762 mmHg		77%
	5.6 m/s		+19

2 September, Tuesday. day, 22°; night, 18°; clear

3 September, wed

	762 mmHg		79%
	5.5 m/s		+19

3 September, Wednesday. day, 22°; night, 18°; clear

4 September, thu

	762 mmHg		80%
	5.9 m/s		+19

4 September, Thursday. day, 22°; night, 18°; clear

5 September, fri

	762 mmHg		79%
	6.1 m/s		+19

5 September, Friday. day, 22°; night, 18°; clear

6 September, sat

	762 mmHg		79%
	6.1 m/s		+19

6 September, Saturday. day, 22°; night, 18°; clear

Average data for 10 years

Porto August

18

sunny days

4

days with precipitation

1

cloudy day

18 sunny days; 4 days with precipitation; 1 cloudy day;

80

%

air humidity

4.19

m/s

WindW

21

mm of precipitation

(2% of annual average)

+19

°C

Water temperature

air humidity 80%; 21 millimeters of precipitation (2% of annual average); Wind westerly 4.19 Meters per second; Water temperature +19°

Weather graphs for August

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

W

W

W

W

W

W

W

W

W

SW

W

W

W

W

W

W

W

W

W

W

W

SW

W

W

W

W

W

W

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

31

Daytime temperature

Night-time temperature

Cities near you

Lisbon
Oviedo
Xixón
Coruna
Cascais
Setúbal
Felgueiras
Santiago de Compostela
Figueira da foz

Cities with similar weather in August

Genoa
Santa Cruz de Tenerife
Funchal
Seattle
Las Palmas de Gran Canaria
Playa de las Americas
Montreal
Port Louis
San Remo

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

August in Porto is the warmest month of the year. In August, the weather in Porto is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Porto has 18 sunny, 8 partly cloudy, 4 rainy, and 1 cloudy day in August. The rains are usually light. August as well as July is considered the most comfortable time to visit Porto.

Links

Help Terms of use Contact us

For partners

Advertisement Yandex.Weather API

Weather forecasts

Hourly forecast Detailed 10 day forecast Monthly forecast Weather map Magnetic storms

Download app

English

English
Русский

Source data: Yandex.Traffic, Roshydromet FSBI "CAO", NOAA, © OpenStreetMap

© 2017–2025 YANDEX LLC