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September weather forecast in Portonovo

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

31 August, sun

	762 mmHg		77%
	6 m/s		+18

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

1 September, mon

	762 mmHg		76%
	5.9 m/s		+19

1 September, Monday. day, 22°; night, 16°; clear

2 September, tue

	762 mmHg		77%
	5.8 m/s		+18

2 September, Tuesday. day, 22°; night, 16°; clear

3 September, wed

	762 mmHg		78%
	5.8 m/s		+19

3 September, Wednesday. day, 21°; night, 16°; clear

4 September, thu

	763 mmHg		78%
	6.4 m/s		+19

4 September, Thursday. day, 21°; night, 16°; clear

5 September, fri

	763 mmHg		78%
	6.4 m/s		+18

5 September, Friday. day, 21°; night, 16°; clear

6 September, sat

	762 mmHg		78%
	6.4 m/s		+18

6 September, Saturday. day, 21°; night, 16°; clear

7 September, sun

	762 mmHg		79%
	6.1 m/s		+19

7 September, Sunday. day, 21°; night, 16°; clear

8 September, mon

	762 mmHg		82%
	5.2 m/s		+19

8 September, Monday. day, 21°; night, 16°; clear

9 September, tue

	763 mmHg		82%
	5.8 m/s		+19

9 September, Tuesday. day, 21°; night, 16°; partly cloudy

10 September, wed

	763 mmHg		81%
	5.6 m/s		+19

10 September, Wednesday. day, 21°; night, 16°; partly cloudy

11 September, thu

	763 mmHg		80%
	5.6 m/s		+19

11 September, Thursday. day, 21°; night, 16°; partly cloudy

12 September, fri

	763 mmHg		79%
	5.7 m/s		+19

12 September, Friday. day, 21°; night, 16°; partly cloudy

13 September, sat

	763 mmHg		79%
	6.3 m/s		+19

13 September, Saturday. day, 21°; night, 16°; clear

14 September, sun

	762 mmHg		77%
	5.8 m/s		+19

14 September, Sunday. day, 21°; night, 16°; rain

15 September, mon

	762 mmHg		79%
	5.7 m/s		+18

15 September, Monday. day, 21°; night, 16°; clear

16 September, tue

	761 mmHg		80%
	6.1 m/s		+18

16 September, Tuesday. day, 20°; night, 16°; partly cloudy

17 September, wed

	761 mmHg		80%
	6.1 m/s		+18

17 September, Wednesday. day, 20°; night, 16°; rain

18 September, thu

	761 mmHg		80%
	6.2 m/s		+18

18 September, Thursday. day, 20°; night, 15°; clear

19 September, fri

	762 mmHg		80%
	5.8 m/s		+19

19 September, Friday. day, 20°; night, 15°; clear

20 September, sat

	762 mmHg		82%
	6 m/s		+19

20 September, Saturday. day, 20°; night, 15°; clear

21 September, sun

	762 mmHg		82%
	6.4 m/s		+19

21 September, Sunday. day, 20°; night, 16°; rain

22 September, mon

	762 mmHg		82%
	5.6 m/s		+19

22 September, Monday. day, 20°; night, 15°; rain

23 September, tue

	762 mmHg		82%
	6.3 m/s		+19

23 September, Tuesday. day, 20°; night, 15°; rain

24 September, wed

	763 mmHg		81%
	6.3 m/s		+19

24 September, Wednesday. day, 19°; night, 15°; rain

25 September, thu

	763 mmHg		80%
	6.1 m/s		+19

25 September, Thursday. day, 19°; night, 15°; rain

26 September, fri

	763 mmHg		81%
	5.6 m/s		+19

26 September, Friday. day, 19°; night, 15°; partly cloudy

27 September, sat

	764 mmHg		81%
	5.5 m/s		+19

27 September, Saturday. day, 20°; night, 15°; overcast

28 September, sun

	763 mmHg		81%
	5.7 m/s		+19

28 September, Sunday. day, 20°; night, 15°; partly cloudy

29 September, mon

	763 mmHg		83%
	5.9 m/s		+19

29 September, Monday. day, 20°; night, 16°; rain

30 September, tue

	763 mmHg		82%
	6 m/s		+19

30 September, Tuesday. day, 19°; night, 15°; rain

1 October, wed

	763 mmHg		83%
	5.9 m/s		+18

1 October, Wednesday. day, 19°; night, 15°; partly cloudy

2 October, thu

	763 mmHg		81%
	6.3 m/s		+18

2 October, Thursday. day, 19°; night, 15°; partly cloudy

3 October, fri

	763 mmHg		81%
	5.5 m/s		+18

3 October, Friday. day, 19°; night, 15°; clear

4 October, sat

	764 mmHg		82%
	6 m/s		+18

4 October, Saturday. day, 19°; night, 15°; partly cloudy

Average data for 10 years

Portonovo September

13

sunny days

9

days with precipitation

4

cloudy days

13 sunny days; 9 days with precipitation; 4 cloudy days;

80

%

air humidity

4.1

m/s

WindS

78

mm of precipitation

(5% of annual average)

+19

°C

Water temperature

air humidity 80%; 78 millimeters of precipitation (5% of annual average); Wind southerly 4.1 Meters per second; Water temperature +19°

Weather graphs for September

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

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S

SE

SE

SE

SE

S

S

S

S

S

S

SE

S

S

SE

S

S

S

SE

S

S

S

S

SE

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

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27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Lisbon
Porto
Oviedo
Xixón
Coruna
Cascais
Setúbal
Felgueiras
Santiago de Compostela

Cities with similar weather in September

Varna
Podgorica
The Golden Sands
Genoa
Marseilles
Tsandrypsh
Kotor
Lima
Albena

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

In September, the weather in Portonovo is typically warm. Average daily high temperature in September is about 20 degrees above zero. On average, Portonovo has 13 sunny, 9 rainy, 7 partly cloudy, and 1 cloudy day in September. The rains are usually heavy.

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