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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

30 August, sun

	753 mmHg		61%
	7.8 m/s		+19

30 August, Sunday. day, 18°; night, 14°; clear

31 August, mon

	755 mmHg		58%
	8.6 m/s		+19

31 August, Monday. day, 18°; night, 14°; clear

1 September, tue

	759 mmHg		58%
	9 m/s		+18

1 September, Tuesday. day, 17°; night, 14°; clear

2 September, wed

	760 mmHg		62%
	7.3 m/s		+18

2 September, Wednesday. day, 17°; night, 13°; partly cloudy

3 September, thu

	759 mmHg		57%
	7 m/s		+19

3 September, Thursday. day, 19°; night, 14°; clear

4 September, fri

	757 mmHg		58%
	5.9 m/s		+21

4 September, Friday. day, 20°; night, 16°; clear

5 September, sat

	757 mmHg		66%
	6.9 m/s		+19

5 September, Saturday. day, 18°; night, 15°; clear

6 September, sun

	756 mmHg		60%
	6 m/s		+20

6 September, Sunday. day, 20°; night, 15°; clear

7 September, mon

	756 mmHg		63%
	7.1 m/s		+19

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

8 September, tue

	756 mmHg		72%
	6.5 m/s		+18

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

9 September, wed

	758 mmHg		73%
	8 m/s		+17

9 September, Wednesday. day, 15°; night, 13°; clear

10 September, thu

	759 mmHg		68%
	6.5 m/s		+18

10 September, Thursday. day, 16°; night, 13°; partly cloudy

11 September, fri

	758 mmHg		72%
	5.9 m/s		+18

11 September, Friday. day, 16°; night, 13°; clear

12 September, sat

	756 mmHg		63%
	5.5 m/s		+20

12 September, Saturday. day, 19°; night, 14°; clear

13 September, sun

	755 mmHg		62%
	6.8 m/s		+21

13 September, Sunday. day, 20°; night, 15°; clear

14 September, mon

	755 mmHg		68%
	9 m/s		+19

14 September, Monday. day, 18°; night, 16°; partly cloudy

15 September, tue

	757 mmHg		68%
	7.9 m/s		+19

15 September, Tuesday. day, 17°; night, 14°; rain

16 September, wed

	755 mmHg		60%
	7.5 m/s		+20

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

17 September, thu

	757 mmHg		66%
	8.8 m/s		+19

17 September, Thursday. day, 17°; night, 15°; clear

18 September, fri

	757 mmHg		68%
	8.8 m/s		+18

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

19 September, sat

	757 mmHg		64%
	6.9 m/s		+19

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

20 September, sun

	757 mmHg		64%
	7 m/s		+19

20 September, Sunday. day, 17°; night, 14°; partly cloudy

21 September, mon

	757 mmHg		68%
	7.6 m/s		+19

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

22 September, tue

	757 mmHg		62%
	7.5 m/s		+19

22 September, Tuesday. day, 18°; night, 15°; rain

23 September, wed

	756 mmHg		63%
	6.8 m/s		+19

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

24 September, thu

	756 mmHg		70%
	7.5 m/s		+18

24 September, Thursday. day, 17°; night, 14°; partly cloudy

25 September, fri

	755 mmHg		69%
	7.5 m/s		+18

25 September, Friday. day, 17°; night, 14°; clear

26 September, sat

	756 mmHg		73%
	9.3 m/s		+17

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

27 September, sun

	758 mmHg		67%
	8 m/s		+18

27 September, Sunday. day, 16°; night, 12°; clear

28 September, mon

	758 mmHg		63%
	7.4 m/s		+19

28 September, Monday. day, 17°; night, 13°; partly cloudy

29 September, tue

	758 mmHg		68%
	7 m/s		+19

29 September, Tuesday. day, 17°; night, 13°; clear

30 September, wed

	758 mmHg		72%
	6.3 m/s		+19

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

1 October, thu

	755 mmHg		70%
	7 m/s		+20

1 October, Thursday. day, 18°; night, 14°; partly cloudy

2 October, fri

	756 mmHg		70%
	6.9 m/s		+20

2 October, Friday. day, 18°; night, 15°; clear

3 October, sat

	758 mmHg		72%
	7.6 m/s		+19

3 October, Saturday. day, 18°; night, 15°; clear

Average data for 10 years

Plettenberg Bay September

15

sunny days

4

days with precipitation

11

cloudy days

15 sunny days; 4 days with precipitation; 11 cloudy days;

66

%

air humidity

5

m/s

WindW

30

mm of precipitation

(9% of annual average)

+19

°C

Water temperature

air humidity 66%; 30 millimeters of precipitation (9% of annual average); Wind westerly 5 Meters per second; Water temperature +19°

Weather graphs for September

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

W

W

W

NW

W

NW

W

SW

SW

W

SW

W

W

W

SW

W

W

W

W

W

SW

W

W

W

W

W

W

W

W

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
Addo
Port Elizabeth
Upington
Hermanus
Tulbagh
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 15 sunny, 11 partly cloudy, and 4 rainy days in September. The rains are usually light.

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