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September weather forecast in Ballymoney

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		81%
	8 m/s		+14

31 August, Sunday. day, 14°; night, 13°; overcast

1 September, mon

	759 mmHg		83%
	8 m/s		+15

1 September, Monday. day, 15°; night, 13°; rain

2 September, tue

	759 mmHg		84%
	7.8 m/s		+15

2 September, Tuesday. day, 15°; night, 13°; partly cloudy

3 September, wed

	758 mmHg		84%
	8.3 m/s		+14

3 September, Wednesday. day, 15°; night, 13°; overcast

4 September, thu

	759 mmHg		84%
	8.3 m/s		+14

4 September, Thursday. day, 15°; night, 13°; rain

5 September, fri

	759 mmHg		83%
	9 m/s		+14

5 September, Friday. day, 15°; night, 13°; rain

6 September, sat

	757 mmHg		83%
	9.39 m/s		+14

6 September, Saturday. day, 14°; night, 13°; rain

7 September, sun

	757 mmHg		84%
	9.1 m/s		+15

7 September, Sunday. day, 14°; night, 13°; rain

8 September, mon

	756 mmHg		83%
	8.5 m/s		+15

8 September, Monday. day, 15°; night, 13°; overcast

9 September, tue

	757 mmHg		82%
	9.2 m/s		+15

9 September, Tuesday. day, 14°; night, 13°; rain

10 September, wed

	757 mmHg		83%
	8.8 m/s		+14

10 September, Wednesday. day, 14°; night, 13°; rain

11 September, thu

	755 mmHg		83%
	9.39 m/s		+15

11 September, Thursday. day, 14°; night, 13°; rain

12 September, fri

	757 mmHg		82%
	9.8 m/s		+15

12 September, Friday. day, 14°; night, 12°; rain

13 September, sat

	757 mmHg		80%
	10 m/s		+14

13 September, Saturday. day, 14°; night, 12°; rain

14 September, sun

	758 mmHg		82%
	9.3 m/s		+14

14 September, Sunday. day, 14°; night, 12°; overcast

15 September, mon

	758 mmHg		81%
	9.39 m/s		+14

15 September, Monday. day, 14°; night, 12°; rain

16 September, tue

	758 mmHg		80%
	9.5 m/s		+14

16 September, Tuesday. day, 14°; night, 12°; rain

17 September, wed

	758 mmHg		79%
	8.6 m/s		+14

17 September, Wednesday. day, 14°; night, 12°; partly cloudy

18 September, thu

	758 mmHg		81%
	8.5 m/s		+14

18 September, Thursday. day, 14°; night, 12°; partly cloudy

19 September, fri

	758 mmHg		82%
	8.5 m/s		+14

19 September, Friday. day, 14°; night, 12°; partly cloudy

20 September, sat

	758 mmHg		82%
	8.8 m/s		+14

20 September, Saturday. day, 14°; night, 12°; clear

21 September, sun

	757 mmHg		82%
	9.3 m/s		+14

21 September, Sunday. day, 14°; night, 12°; partly cloudy

22 September, mon

	757 mmHg		80%
	9.5 m/s		+14

22 September, Monday. day, 14°; night, 12°; clear

23 September, tue

	757 mmHg		79%
	9.89 m/s		+14

23 September, Tuesday. day, 14°; night, 12°; rain

24 September, wed

	756 mmHg		80%
	9.7 m/s		+14

24 September, Wednesday. day, 13°; night, 12°; rain

25 September, thu

	757 mmHg		82%
	9.6 m/s		+14

25 September, Thursday. day, 14°; night, 12°; rain

26 September, fri

	757 mmHg		79%
	9.8 m/s		+14

26 September, Friday. day, 14°; night, 12°; overcast

27 September, sat

	756 mmHg		80%
	9.5 m/s		+14

27 September, Saturday. day, 13°; night, 12°; rain

28 September, sun

	756 mmHg		80%
	9.8 m/s		+14

28 September, Sunday. day, 14°; night, 12°; rain

29 September, mon

	755 mmHg		81%
	9.5 m/s		+14

29 September, Monday. day, 13°; night, 12°; rain

30 September, tue

	753 mmHg		84%
	10.4 m/s		+13

30 September, Tuesday. day, 13°; night, 12°; rain

1 October, wed

	753 mmHg		81%
	10.3 m/s		+14

1 October, Wednesday. day, 13°; night, 11°; rain

2 October, thu

	754 mmHg		79%
	10.3 m/s		+13

2 October, Thursday. day, 13°; night, 11°; partly cloudy

3 October, fri

	754 mmHg		80%
	11.2 m/s		+13

3 October, Friday. day, 13°; night, 11°; rain

4 October, sat

	753 mmHg		80%
	11.2 m/s		+13

4 October, Saturday. day, 13°; night, 11°; rain

Average data for 10 years

Ballymoney September

2

sunny days

19

days with precipitation

13

cloudy days

2 sunny days; 19 days with precipitation; 13 cloudy days;

82

%

air humidity

6.9

m/s

WindSW

112

mm of precipitation

(8% of annual average)

+14

°C

Water temperature

air humidity 82%; 112 millimeters of precipitation (8% of annual average); Wind south-westerly 6.9 Meters per second; Water temperature +14°

Weather graphs for September

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

SW

SW

SW

SW

SW

SW

S

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

SW

S

S

S

S

S

S

S

S

SW

SW

SW

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

Dublin
Edinburgh
Liverpool
Carrickfinn
Glasgow
Cork
Galway
Wicklow
Belfast

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Cholpon-Ata
Oslo
Yurmala
Palanga
Buenos Aires

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

In September, the weather in Ballymoney is typically warm. Average daily high temperature in September is about 14 degrees above zero. On average, Ballymoney has 19 rainy, 5 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 Ballymoney.

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