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Weather in Invercargill for September 2026

Your guide to Invercargill weather in September - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Invercargill during September is quite rare, with fewer than 2 snowy days on average.
    According to Invercargill snow forecast for September 2026, no snow is expected until the end of the month.

    • Temperatures

  • Until now, September 2026 in Invercargill has been nearly identical to the historical average, with a temperature of 11.2 °C (showing only a slight deviation of 0.4 °C).

  • The forecast for the next days in Invercargill predicts temperatures to be around 12 °C, close to the historical average.

  • In general, the average temperature in Invercargill at the beginning of September is 12.1 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 12.6 °C by the end of September.

    • Rain 🌧️

  • Invercargill experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 153.7 mm.

Average dry days
2
Dry days
Average rainy days
27
Rainy days
Average snowy days
1
Snow days
Average temperatures
11°/5°
Temperatures
Average wind speed
27 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Invercargill Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain shower
12°
2
Moderate rain
12°
3
Patchy rain possible
13°
4
Patchy rain possible
12°
5
Mist
13°
6
Patchy rain possible
12°
7
Light rain shower
11°
8
Sunny
13°
9
Sunny
14°
10
Light rain shower
10°
11
Light rain shower
10°
12
Overcast
9°
13
Patchy rain possible
9°
14
Overcast
12°
15
Overcast
12°
16
Moderate or heavy rain with thunder
14°
17
Patchy rain possible
10°
18
Light rain shower
10°
19
Light rain shower
12°
20
Patchy rain possible
9°
21
Overcast
15°
22
Light rain shower
9°
23
Light rain shower
9°
24
Patchy rain possible
11°
25
Sunny
9°
26
Overcast
13°
27
Overcast
13°
28
Overcast
17°
29
Sunny
12°
30
Overcast
13°

Temperatures trend during September in Invercargill

See the weather trend as well as the moving average line

September weather in Invercargill day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 12° /5° 7 mm 3
2 Sept. Moderate rain
Moderate rain
 12° /7° 9.4 mm 3
3 Sept. Patchy rain possible
Patchy rain possible
 13° /6° 4.2 mm 3
4 Sept. Patchy rain possible
Patchy rain possible
 12° /6° 4 mm 3
5 Sept. Mist
Mist
 13° /5° 5.4 mm 3
6 Sept. Patchy rain possible
Patchy rain possible
 12° /6° 5.8 mm 3
7 Sept. Light rain shower
Light rain shower
 11° /6° 6.7 mm 3
8 Sept. Sunny
Sunny
 13° /4° 2.3 mm 4
9 Sept. Sunny
Sunny
 14° /4° 3.6 mm 3
10 Sept. Light rain shower
Light rain shower
 10° /4° 6.5 mm 2
11 Sept. Light rain shower
Light rain shower
 10° /4° 4.2 mm 3
12 Sept. Overcast
Overcast
 9° /4° 8.7 mm 2
13 Sept. Patchy rain possible
Patchy rain possible
 9° /4° 4.4 mm 3
14 Sept. Overcast
Overcast
 12° /5° 0.5 mm 3
15 Sept. Overcast
Overcast
 12° /5° 2.8 mm 3
16 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 14° /4° 9.3 mm 3
17 Sept. Patchy rain possible
Patchy rain possible
 10° /7° 3.3 mm 3.3
18 Sept. Light rain shower
Light rain shower
 10° /7° 8.2 mm 3.1
19 Sept. Light rain shower
Light rain shower
 12° /5° 16 mm 2.5
20 Sept. Patchy rain possible
Patchy rain possible
 9° /8° 4.1 mm 3
21 Sept. Overcast
Overcast
 15° /6° 8.2 mm 4.4
22 Sept. Light rain shower
Light rain shower
 9° /6° 19 mm 3
23 Sept. Light rain shower
Light rain shower
 9° /6° 3.7 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 11° /7° 6.8 mm 4
25 Sept. Sunny
Sunny
 9° /4° 0 mm 4
26 Sept. Overcast
Overcast
 13° /4° 0 mm 4
27 Sept. Overcast
Overcast
 13° /10° 0 mm 5
28 Sept. Overcast
Overcast
 17° /8° 0.1 mm 5
29 Sept. Sunny
Sunny
 12° /12° 0 mm 5
30 Sept. Overcast
Overcast
 13° /8° 0.2 mm 4
Next
Important Notice
Our weather forecast for Invercargill in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Invercargill forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Invercargill in September - FAQ

What are the expected maximum and minimum temperatures in Invercargill during September?
During September, expect a variety of temperatures with highs around 11° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Invercargill during September?
Significant rainfall exceeding 153.7 mm is expected in Invercargill during September, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Invercargill in September 2026?
Invercargill typically sees 0.2 cm of snowfall during September.

What are the typical wind conditions in Invercargill during September?
The average wind speed in Invercargill during September is 27 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Invercargill

Explore the daily rainfall trends and prepare for Invercargills September weather 💧
Typically, Invercargill has 27 rainy days in September with a total of 153.7 mm of rainfall.

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Location coordinates Where is Invercargill?

Get accurate weather forecasts for Invercargill, located at latitude -46.4 and longitude 168.35. Stay updated with localized weather information tailored for Invercargill.

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