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September weather forecast in Plettenberg Bay

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

	743 mmHg		73%
	6.8 m/s		+19

31 August, Sunday. day, 17°; night, 10°; rain

1 September, mon

	745 mmHg		73%
	6.2 m/s		+18

1 September, Monday. day, 17°; night, 11°; clear

2 September, tue

	744 mmHg		74%
	6.3 m/s		+18

2 September, Tuesday. day, 17°; night, 11°; clear

3 September, wed

	745 mmHg		74%
	6.2 m/s		+19

3 September, Wednesday. day, 17°; night, 11°; clear

4 September, thu

	744 mmHg		72%
	5.8 m/s		+21

4 September, Thursday. day, 17°; night, 11°; clear

5 September, fri

	745 mmHg		73%
	6.5 m/s		+19

5 September, Friday. day, 17°; night, 11°; rain

6 September, sat

	746 mmHg		73%
	6 m/s		+20

6 September, Saturday. day, 17°; night, 11°; partly cloudy

7 September, sun

	744 mmHg		73%
	5.3 m/s		+19

7 September, Sunday. day, 18°; night, 11°; clear

8 September, mon

	743 mmHg		74%
	5.9 m/s		+18

8 September, Monday. day, 18°; night, 11°; partly cloudy

9 September, tue

	744 mmHg		77%
	5.5 m/s		+17

9 September, Tuesday. day, 16°; night, 11°; partly cloudy

10 September, wed

	745 mmHg		76%
	6.6 m/s		+18

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

11 September, thu

	745 mmHg		77%
	5.9 m/s		+18

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

12 September, fri

	745 mmHg		76%
	5.8 m/s		+20

12 September, Friday. day, 17°; night, 11°; partly cloudy

13 September, sat

	745 mmHg		75%
	6.1 m/s		+21

13 September, Saturday. day, 17°; night, 11°; clear

14 September, sun

	744 mmHg		72%
	5.6 m/s		+19

14 September, Sunday. day, 19°; night, 11°; partly cloudy

15 September, mon

	743 mmHg		75%
	6.3 m/s		+19

15 September, Monday. day, 18°; night, 12°; clear

16 September, tue

	744 mmHg		76%
	6.2 m/s		+20

16 September, Tuesday. day, 17°; night, 12°; rain

17 September, wed

	744 mmHg		77%
	6.2 m/s		+19

17 September, Wednesday. day, 17°; night, 11°; rain

18 September, thu

	745 mmHg		75%
	6.7 m/s		+18

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

19 September, fri

	745 mmHg		75%
	6.3 m/s		+19

19 September, Friday. day, 17°; night, 11°; partly cloudy

20 September, sat

	745 mmHg		74%
	6 m/s		+19

20 September, Saturday. day, 17°; night, 11°; clear

21 September, sun

	745 mmHg		75%
	5.6 m/s		+19

21 September, Sunday. day, 17°; night, 11°; rain

22 September, mon

	745 mmHg		74%
	6 m/s		+19

22 September, Monday. day, 18°; night, 11°; clear

23 September, tue

	743 mmHg		74%
	5.7 m/s		+19

23 September, Tuesday. day, 18°; night, 12°; partly cloudy

24 September, wed

	743 mmHg		77%
	6.1 m/s		+18

24 September, Wednesday. day, 18°; night, 12°; partly cloudy

25 September, thu

	742 mmHg		76%
	6.4 m/s		+18

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

26 September, fri

	743 mmHg		75%
	6.7 m/s		+17

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

27 September, sat

	744 mmHg		76%
	6.7 m/s		+18

27 September, Saturday. day, 17°; night, 11°; rain

28 September, sun

	745 mmHg		74%
	5.9 m/s		+19

28 September, Sunday. day, 17°; night, 11°; clear

29 September, mon

	745 mmHg		74%
	6.3 m/s		+19

29 September, Monday. day, 17°; night, 11°; clear

30 September, tue

	744 mmHg		75%
	6.3 m/s		+19

30 September, Tuesday. day, 18°; night, 12°; overcast

1 October, wed

	745 mmHg		77%
	6.6 m/s		+20

1 October, Wednesday. day, 17°; night, 12°; rain

2 October, thu

	744 mmHg		76%
	6.3 m/s		+20

2 October, Thursday. day, 18°; night, 12°; clear

3 October, fri

	744 mmHg		77%
	5.9 m/s		+19

3 October, Friday. day, 18°; night, 12°; partly cloudy

4 October, sat

	744 mmHg		75%
	5.7 m/s		+20

4 October, Saturday. day, 18°; night, 12°; partly cloudy

Average data for 10 years

Plettenberg Bay September

11

sunny days

10

days with precipitation

3

cloudy days

11 sunny days; 10 days with precipitation; 3 cloudy days;

75

%

air humidity

3.9

m/s

WindS

53

mm of precipitation

(9% of annual average)

+19

°C

Water temperature

air humidity 75%; 53 millimeters of precipitation (9% of annual average); Wind southerly 3.9 Meters per second; Water temperature +19°

Weather graphs for September

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

S

S

S

S

SW

S

S

S

SW

S

S

S

S

S

S

SW

S

S

S

S

S

S

S

S

S

S

SW

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

25

26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Capetown
Port Elizabeth
East London
Addo
Tulbagh
Upington
Bloemfontein
Stellenbosch
Mossel Bay

Cities with similar weather in September

Sydney
Yurmala
Palanga
Buenos Aires
Copenhagen
Capetown
Gdansk
Looe
Klaipeda

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

September in Plettenberg Bay is the cloudiest month of the year. In September, the weather in Plettenberg Bay is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Plettenberg Bay has 11 sunny, 10 rainy, 8 partly cloudy, and 1 cloudy day in September. The rains are usually moderate. September as well as June, July, August, and October is considered the most uncomfortable time to visit Plettenberg Bay.

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