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September weather forecast in Penzance

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

	764 mmHg		80%
	7.9 m/s		+17

31 August, Sunday. day, 16°; night, 15°; partly cloudy

1 September, mon

	764 mmHg		82%
	7.3 m/s		+17

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

2 September, tue

	763 mmHg		85%
	7.8 m/s		+17

2 September, Tuesday. day, 16°; night, 15°; partly cloudy

3 September, wed

	762 mmHg		84%
	8.2 m/s		+17

3 September, Wednesday. day, 17°; night, 15°; clear

4 September, thu

	762 mmHg		83%
	8.1 m/s		+16

4 September, Thursday. day, 16°; night, 15°; clear

5 September, fri

	762 mmHg		84%
	8.6 m/s		+16

5 September, Friday. day, 16°; night, 15°; partly cloudy

6 September, sat

	761 mmHg		84%
	8.5 m/s		+17

6 September, Saturday. day, 16°; night, 15°; partly cloudy

7 September, sun

	761 mmHg		83%
	8.5 m/s		+17

7 September, Sunday. day, 16°; night, 15°; partly cloudy

8 September, mon

	761 mmHg		85%
	8.89 m/s		+17

8 September, Monday. day, 16°; night, 15°; rain

9 September, tue

	761 mmHg		83%
	8.89 m/s		+16

9 September, Tuesday. day, 16°; night, 15°; partly cloudy

10 September, wed

	761 mmHg		83%
	9 m/s		+16

10 September, Wednesday. day, 16°; night, 15°; rain

11 September, thu

	761 mmHg		82%
	9.2 m/s		+16

11 September, Thursday. day, 16°; night, 15°; rain

12 September, fri

	762 mmHg		81%
	9.2 m/s		+16

12 September, Friday. day, 16°; night, 15°; rain

13 September, sat

	762 mmHg		79%
	8.89 m/s		+16

13 September, Saturday. day, 16°; night, 14°; clear

14 September, sun

	762 mmHg		80%
	8.5 m/s		+16

14 September, Sunday. day, 16°; night, 14°; clear

15 September, mon

	762 mmHg		81%
	8.1 m/s		+16

15 September, Monday. day, 16°; night, 14°; partly cloudy

16 September, tue

	761 mmHg		81%
	8.5 m/s		+16

16 September, Tuesday. day, 15°; night, 14°; partly cloudy

17 September, wed

	761 mmHg		80%
	8.8 m/s		+16

17 September, Wednesday. day, 16°; night, 14°; clear

18 September, thu

	761 mmHg		78%
	8.89 m/s		+16

18 September, Thursday. day, 16°; night, 14°; clear

19 September, fri

	762 mmHg		82%
	8.2 m/s		+16

19 September, Friday. day, 16°; night, 14°; partly cloudy

20 September, sat

	761 mmHg		84%
	8.5 m/s		+16

20 September, Saturday. day, 16°; night, 14°; partly cloudy

21 September, sun

	761 mmHg		83%
	8.5 m/s		+16

21 September, Sunday. day, 16°; night, 14°; partly cloudy

22 September, mon

	761 mmHg		84%
	8.6 m/s		+16

22 September, Monday. day, 15°; night, 14°; rain

23 September, tue

	761 mmHg		82%
	9.39 m/s		+16

23 September, Tuesday. day, 15°; night, 14°; rain

24 September, wed

	760 mmHg		81%
	9.3 m/s		+16

24 September, Wednesday. day, 15°; night, 14°; rain

25 September, thu

	761 mmHg		81%
	8.1 m/s		+15

25 September, Thursday. day, 15°; night, 14°; rain

26 September, fri

	761 mmHg		84%
	9.1 m/s		+15

26 September, Friday. day, 15°; night, 14°; rain

27 September, sat

	761 mmHg		81%
	9.5 m/s		+16

27 September, Saturday. day, 15°; night, 14°; partly cloudy

28 September, sun

	761 mmHg		83%
	8.8 m/s		+16

28 September, Sunday. day, 15°; night, 14°; rain

29 September, mon

	760 mmHg		81%
	9.5 m/s		+15

29 September, Monday. day, 15°; night, 14°; rain

30 September, tue

	758 mmHg		85%
	10.3 m/s		+15

30 September, Tuesday. day, 15°; night, 14°; rain

1 October, wed

	758 mmHg		83%
	10.3 m/s		+15

1 October, Wednesday. day, 15°; night, 14°; rain

2 October, thu

	759 mmHg		81%
	9.8 m/s		+15

2 October, Thursday. day, 15°; night, 13°; rain

3 October, fri

	760 mmHg		81%
	9.8 m/s		+15

3 October, Friday. day, 15°; night, 13°; clear

4 October, sat

	760 mmHg		79%
	10.6 m/s		+15

4 October, Saturday. day, 14°; night, 13°; partly cloudy

Average data for 10 years

Penzance September

7

sunny days

12

days with precipitation

8

cloudy days

7 sunny days; 12 days with precipitation; 8 cloudy days;

82

%

air humidity

6.6

m/s

WindS

73

mm of precipitation

(7% of annual average)

+16

°C

Water temperature

air humidity 82%; 73 millimeters of precipitation (7% of annual average); Wind southerly 6.6 Meters per second; Water temperature +16°

Weather graphs for September

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

SW

S

S

SW

S

S

S

S

S

S

SW

SW

S

SW

SW

S

SE

S

S

S

S

S

S

SW

SW

SW

S

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

Daytime temperature

Night-time temperature

Cities near you

Dublin
Brest
Trowbridge
Looe
Carnac
Plymouth
Cork
Gloucester
Wicklow

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Yurmala
Palanga
Dublin
Buenos Aires
Copenhagen

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

In September, the weather in Penzance is typically warm. Average daily high temperature in September is about 16 degrees above zero. On average, Penzance has 12 rainy, 11 partly cloudy, and 7 sunny days in September. The rains are usually moderate.

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