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September weather forecast in Invercargill

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

	759 mmHg		78%
	6.6 m/s		+11

31 August, Sunday. day, 12°; night, 5°; partly cloudy

1 September, mon

	758 mmHg		81%
	6.4 m/s		+11

1 September, Monday. day, 12°; night, 5°; rain

2 September, tue

	759 mmHg		80%
	6.9 m/s		+11

2 September, Tuesday. day, 12°; night, 4°; rain

3 September, wed

	760 mmHg		80%
	6.3 m/s		+11

3 September, Wednesday. day, 11°; night, 4°; clear

4 September, thu

	759 mmHg		80%
	6.4 m/s		+11

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

5 September, fri

	758 mmHg		78%
	6.2 m/s		+11

5 September, Friday. day, 12°; night, 5°; partly cloudy

6 September, sat

	758 mmHg		78%
	6.8 m/s		+11

6 September, Saturday. day, 12°; night, 5°; overcast

7 September, sun

	759 mmHg		79%
	6.5 m/s		+11

7 September, Sunday. day, 11°; night, 4°; rain

8 September, mon

	759 mmHg		79%
	6.3 m/s		+11

8 September, Monday. day, 11°; night, 4°; clear

9 September, tue

	756 mmHg		79%
	6.5 m/s		+11

9 September, Tuesday. day, 12°; night, 5°; rain

10 September, wed

	757 mmHg		80%
	7 m/s		+11

10 September, Wednesday. day, 12°; night, 5°; rain

11 September, thu

	758 mmHg		78%
	6.3 m/s		+11

11 September, Thursday. day, 12°; night, 5°; rain

12 September, fri

	757 mmHg		79%
	6.5 m/s		+11

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

13 September, sat

	757 mmHg		78%
	6.4 m/s		+11

13 September, Saturday. day, 12°; night, 5°; partly cloudy

14 September, sun

	757 mmHg		78%
	6.8 m/s		+11

14 September, Sunday. day, 13°; night, 5°; rain

15 September, mon

	755 mmHg		76%
	7.2 m/s		+11

15 September, Monday. day, 13°; night, 6°; rain

16 September, tue

	754 mmHg		75%
	7.7 m/s		+11

16 September, Tuesday. day, 13°; night, 5°; rain

17 September, wed

	755 mmHg		79%
	7.2 m/s		+11

17 September, Wednesday. day, 11°; night, 4°; rain

18 September, thu

	756 mmHg		78%
	7.2 m/s		+11

18 September, Thursday. day, 12°; night, 5°; rain

19 September, fri

	757 mmHg		78%
	7 m/s		+12

19 September, Friday. day, 13°; night, 5°; partly cloudy

20 September, sat

	757 mmHg		77%
	6.8 m/s		+12

20 September, Saturday. day, 13°; night, 5°; rain

21 September, sun

	758 mmHg		77%
	6.8 m/s		+12

21 September, Sunday. day, 13°; night, 5°; rain

22 September, mon

	758 mmHg		79%
	7.2 m/s		+12

22 September, Monday. day, 13°; night, 5°; overcast

23 September, tue

	758 mmHg		78%
	7.7 m/s		+12

23 September, Tuesday. day, 13°; night, 5°; partly cloudy

24 September, wed

	758 mmHg		77%
	7.4 m/s		+12

24 September, Wednesday. day, 12°; night, 5°; rain

25 September, thu

	758 mmHg		78%
	7.1 m/s		+12

25 September, Thursday. day, 13°; night, 5°; rain

26 September, fri

	758 mmHg		79%
	7.2 m/s		+12

26 September, Friday. day, 12°; night, 5°; rain

27 September, sat

	758 mmHg		80%
	6.5 m/s		+12

27 September, Saturday. day, 12°; night, 4°; clear

28 September, sun

	757 mmHg		76%
	7.3 m/s		+13

28 September, Sunday. day, 13°; night, 5°; partly cloudy

29 September, mon

	757 mmHg		75%
	7 m/s		+13

29 September, Monday. day, 13°; night, 5°; rain

30 September, tue

	756 mmHg		78%
	6.8 m/s		+13

30 September, Tuesday. day, 13°; night, 6°; rain

1 October, wed

	755 mmHg		76%
	7.7 m/s		+12

1 October, Wednesday. day, 13°; night, 8°; rain

2 October, thu

	756 mmHg		79%
	7.9 m/s		+12

2 October, Thursday. day, 13°; night, 6°; rain

3 October, fri

	756 mmHg		77%
	7.8 m/s		+12

3 October, Friday. day, 13°; night, 6°; rain

4 October, sat

	756 mmHg		77%
	8.2 m/s		+12

4 October, Saturday. day, 13°; night, 5°; rain

Average data for 10 years

Invercargill September

4

sunny days

18

days with precipitation

8

cloudy days

4 sunny days; 18 days with precipitation; 8 cloudy days;

78

%

air humidity

4.3

m/s

WindSW

114

mm of precipitation

(9% of annual average)

+12

°C

Water temperature

air humidity 78%; 114 millimeters of precipitation (9% of annual average); Wind south-westerly 4.3 Meters per second; Water temperature +12°

Weather graphs for September

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

SW

SW

S

S

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

W

W

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

1

Average data for 10 years

2

3

4

5

6

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8

9

10

11

12

13

14

15

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18

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20

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30

Daytime temperature

Night-time temperature

Cities near you

Wellington
Dunedin
Queenstown
Christchurch
Wanaka
Akaroa
Milford Sound
Kaikoura
Nelson

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Cholpon-Ata
Reykyavik
Oslo
Yurmala
Palanga

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

In September, the weather in Invercargill is typically warm. Average daily high temperature in September is about 12 degrees above zero. On average, Invercargill has 18 rainy, 5 partly cloudy, 4 sunny, and 3 cloudy days in September. The rains are usually heavy. September as well as March, April, May, and June is considered the most uncomfortable time to visit Invercargill.

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