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September weather forecast in Lancaster

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

	760 mmHg		80%
	5.6 m/s		+17

31 August, Sunday. day, 16°; night, 11°; partly cloudy

1 September, mon

	760 mmHg		82%
	5.6 m/s		+16

1 September, Monday. day, 16°; night, 12°; partly cloudy

2 September, tue

	759 mmHg		84%
	5.7 m/s		+16

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

3 September, wed

	759 mmHg		85%
	5.8 m/s		+16

3 September, Wednesday. day, 16°; night, 12°; overcast

4 September, thu

	759 mmHg		81%
	5.5 m/s		+16

4 September, Thursday. day, 16°; night, 12°; clear

5 September, fri

	759 mmHg		83%
	6 m/s		+16

5 September, Friday. day, 16°; night, 12°; overcast

6 September, sat

	758 mmHg		84%
	6.8 m/s		+16

6 September, Saturday. day, 16°; night, 12°; rain

7 September, sun

	757 mmHg		84%
	6.6 m/s		+16

7 September, Sunday. day, 16°; night, 12°; rain

8 September, mon

	757 mmHg		84%
	6.1 m/s		+16

8 September, Monday. day, 16°; night, 12°; overcast

9 September, tue

	758 mmHg		83%
	6.4 m/s		+16

9 September, Tuesday. day, 15°; night, 12°; rain

10 September, wed

	757 mmHg		83%
	6.3 m/s		+16

10 September, Wednesday. day, 16°; night, 11°; rain

11 September, thu

	756 mmHg		84%
	6.8 m/s		+16

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

12 September, fri

	757 mmHg		83%
	6.5 m/s		+16

12 September, Friday. day, 15°; night, 11°; rain

13 September, sat

	758 mmHg		81%
	7.1 m/s		+16

13 September, Saturday. day, 15°; night, 11°; rain

14 September, sun

	758 mmHg		82%
	6.6 m/s		+16

14 September, Sunday. day, 15°; night, 11°; partly cloudy

15 September, mon

	758 mmHg		82%
	6 m/s		+15

15 September, Monday. day, 15°; night, 11°; partly cloudy

16 September, tue

	758 mmHg		82%
	6.3 m/s		+15

16 September, Tuesday. day, 14°; night, 11°; clear

17 September, wed

	758 mmHg		80%
	5.7 m/s		+15

17 September, Wednesday. day, 15°; night, 10°; partly cloudy

18 September, thu

	758 mmHg		83%
	6.4 m/s		+15

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

19 September, fri

	759 mmHg		84%
	6.7 m/s		+15

19 September, Friday. day, 15°; night, 11°; rain

20 September, sat

	759 mmHg		83%
	6.6 m/s		+15

20 September, Saturday. day, 15°; night, 11°; overcast

21 September, sun

	758 mmHg		83%
	6.3 m/s		+15

21 September, Sunday. day, 15°; night, 10°; partly cloudy

22 September, mon

	758 mmHg		83%
	6.4 m/s		+15

22 September, Monday. day, 14°; night, 11°; partly cloudy

23 September, tue

	758 mmHg		83%
	6.5 m/s		+15

23 September, Tuesday. day, 14°; night, 10°; partly cloudy

24 September, wed

	757 mmHg		82%
	7 m/s		+15

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

25 September, thu

	757 mmHg		84%
	6.5 m/s		+15

25 September, Thursday. day, 14°; night, 10°; rain

26 September, fri

	757 mmHg		83%
	6.9 m/s		+15

26 September, Friday. day, 14°; night, 10°; rain

27 September, sat

	757 mmHg		84%
	6.8 m/s		+15

27 September, Saturday. day, 13°; night, 10°; partly cloudy

28 September, sun

	757 mmHg		84%
	6.7 m/s		+15

28 September, Sunday. day, 14°; night, 10°; rain

29 September, mon

	756 mmHg		84%
	6.9 m/s		+15

29 September, Monday. day, 14°; night, 10°; rain

30 September, tue

	755 mmHg		86%
	7.3 m/s		+14

30 September, Tuesday. day, 14°; night, 10°; rain

1 October, wed

	753 mmHg		83%
	7.5 m/s		+14

1 October, Wednesday. day, 14°; night, 10°; rain

2 October, thu

	755 mmHg		83%
	7.2 m/s		+14

2 October, Thursday. day, 13°; night, 9°; clear

3 October, fri

	755 mmHg		84%
	7.8 m/s		+14

3 October, Friday. day, 13°; night, 10°; rain

4 October, sat

	755 mmHg		83%
	7.9 m/s		+14

4 October, Saturday. day, 13°; night, 10°; rain

Average data for 10 years

Lancaster September

2

sunny days

16

days with precipitation

12

cloudy days

2 sunny days; 16 days with precipitation; 12 cloudy days;

83

%

air humidity

4.6

m/s

WindS

135

mm of precipitation

(9% of annual average)

+15

°C

Water temperature

air humidity 83%; 135 millimeters of precipitation (9% of annual average); Wind southerly 4.6 Meters per second; Water temperature +15°

Weather graphs for September

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

SW

S

S

S

S

SW

S

S

SW

S

SW

SW

SW

SW

SW

S

S

S

S

S

S

S

S

S

SW

S

S

SW

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

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

London
Dublin
Edinburgh
Manchester
Liverpool
Trowbridge
Oxford
Glasgow
Bournemouth

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Oslo
Yurmala
Palanga
Buenos Aires
Copenhagen

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

September in Lancaster is the cloudiest month of the year. In September, the weather in Lancaster is typically warm. Average daily high temperature in September is about 15 degrees above zero. On average, Lancaster has 16 rainy, 8 partly cloudy, 4 cloudy, and 2 sunny days in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Lancaster.

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