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September weather forecast in Falmouth

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

	757 mmHg		79%
	6.5 m/s		+17

31 August, Sunday. day, 18°; night, 13°; partly cloudy

1 September, mon

	757 mmHg		80%
	6 m/s		+17

1 September, Monday. day, 18°; night, 13°; clear

2 September, tue

	757 mmHg		83%
	6.3 m/s		+17

2 September, Tuesday. day, 18°; night, 13°; partly cloudy

3 September, wed

	756 mmHg		84%
	6.9 m/s		+17

3 September, Wednesday. day, 18°; night, 13°; partly cloudy

4 September, thu

	756 mmHg		82%
	6.7 m/s		+17

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

5 September, fri

	756 mmHg		82%
	6.9 m/s		+17

5 September, Friday. day, 18°; night, 14°; clear

6 September, sat

	755 mmHg		83%
	7 m/s		+17

6 September, Saturday. day, 18°; night, 14°; rain

7 September, sun

	755 mmHg		82%
	6.9 m/s		+17

7 September, Sunday. day, 18°; night, 13°; overcast

8 September, mon

	754 mmHg		84%
	7.1 m/s		+17

8 September, Monday. day, 18°; night, 13°; rain

9 September, tue

	755 mmHg		82%
	7.2 m/s		+17

9 September, Tuesday. day, 18°; night, 14°; partly cloudy

10 September, wed

	755 mmHg		82%
	7.5 m/s		+17

10 September, Wednesday. day, 18°; night, 14°; rain

11 September, thu

	755 mmHg		82%
	7.4 m/s		+17

11 September, Thursday. day, 17°; night, 13°; rain

12 September, fri

	756 mmHg		81%
	7.5 m/s		+16

12 September, Friday. day, 17°; night, 13°; rain

13 September, sat

	756 mmHg		80%
	7.1 m/s		+16

13 September, Saturday. day, 17°; night, 12°; partly cloudy

14 September, sun

	756 mmHg		80%
	6.8 m/s		+16

14 September, Sunday. day, 17°; night, 13°; clear

15 September, mon

	756 mmHg		81%
	6.6 m/s		+16

15 September, Monday. day, 17°; night, 12°; partly cloudy

16 September, tue

	755 mmHg		80%
	7 m/s		+16

16 September, Tuesday. day, 17°; night, 13°; partly cloudy

17 September, wed

	755 mmHg		80%
	7.2 m/s		+16

17 September, Wednesday. day, 17°; night, 13°; clear

18 September, thu

	755 mmHg		79%
	7.4 m/s		+16

18 September, Thursday. day, 17°; night, 12°; clear

19 September, fri

	756 mmHg		81%
	6.9 m/s		+16

19 September, Friday. day, 17°; night, 13°; partly cloudy

20 September, sat

	755 mmHg		84%
	7 m/s		+16

20 September, Saturday. day, 17°; night, 13°; partly cloudy

21 September, sun

	755 mmHg		82%
	6.8 m/s		+16

21 September, Sunday. day, 17°; night, 13°; partly cloudy

22 September, mon

	755 mmHg		84%
	6.8 m/s		+16

22 September, Monday. day, 17°; night, 12°; partly cloudy

23 September, tue

	754 mmHg		83%
	7.6 m/s		+16

23 September, Tuesday. day, 16°; night, 12°; rain

24 September, wed

	754 mmHg		82%
	7.6 m/s		+16

24 September, Wednesday. day, 16°; night, 12°; rain

25 September, thu

	755 mmHg		82%
	6.6 m/s		+16

25 September, Thursday. day, 16°; night, 12°; rain

26 September, fri

	755 mmHg		84%
	7.4 m/s		+16

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

27 September, sat

	755 mmHg		82%
	7.7 m/s		+16

27 September, Saturday. day, 16°; night, 12°; partly cloudy

28 September, sun

	755 mmHg		84%
	7.2 m/s		+16

28 September, Sunday. day, 16°; night, 12°; overcast

29 September, mon

	754 mmHg		82%
	7.5 m/s		+15

29 September, Monday. day, 16°; night, 12°; rain

30 September, tue

	752 mmHg		86%
	8.39 m/s		+16

30 September, Tuesday. day, 16°; night, 12°; rain

1 October, wed

	752 mmHg		83%
	8.3 m/s		+15

1 October, Wednesday. day, 16°; night, 13°; rain

2 October, thu

	753 mmHg		82%
	7.7 m/s		+15

2 October, Thursday. day, 16°; night, 12°; partly cloudy

3 October, fri

	754 mmHg		83%
	7.7 m/s		+15

3 October, Friday. day, 15°; night, 12°; partly cloudy

4 October, sat

	754 mmHg		81%
	8.6 m/s		+15

4 October, Saturday. day, 15°; night, 11°; partly cloudy

Average data for 10 years

Falmouth September

6

sunny days

11

days with precipitation

9

cloudy days

6 sunny days; 11 days with precipitation; 9 cloudy days;

82

%

air humidity

5.2

m/s

WindS

65

mm of precipitation

(7% of annual average)

+16

°C

Water temperature

air humidity 82%; 65 millimeters of precipitation (7% of annual average); Wind southerly 5.2 Meters per second; Water temperature +16°

Weather graphs for September

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

SW

S

S

S

S

S

S

SW

S

S

SW

SW

S

SW

SW

S

S

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
Liverpool
Trowbridge
Cork
Bournemouth
Wicklow
Carnac
Plymouth

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 Falmouth is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Falmouth has 11 rainy, 11 partly cloudy, 6 sunny, and 2 cloudy days in September. The rains are usually moderate.

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