Southland (Invercargill)
September
Weather in Southland for September 2025
Your guide to Southland weather in September - trends and predictions
Snowfall in Southland during September is quite rare, with fewer than 2 snowy days on average.
In general, the average temperature in Southland at the beginning of September is 13.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 10.9 °C by the end of September.
Southland experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
Is September a good time to visit Southland? check out the best time to travel to Southland page.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
More
6
Dry days
23
Rainy days
1
Snow days
11°/5°
Temperatures
26 km/h
Avg max wind
77 %
Avg humidity
Southland in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  13° | 2  13° | 3 12° | 4  12° | 5 14° | 6  14° | 7  14° |
| 8  14° | 9 14° | 10  11° | 11 10° | 12 8° | 13 9° | 14 12° |
| 15 8° | 16  12° | 17 9° | 18 10° | 19  12° | 20 17° | 21 14° |
| 22 10° | 23 11° | 24 10° | 25 13° | 26 10° | 27 10° | 28 11° |
| 29 11° | 30 11° |
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Temperatures trend during September in Southland
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Sept. | Overcast | 13° /6° | 6.4 mm | 0 cm | |
| 2 Sept. | Moderate rain | 13° /8° | 9.4 mm | 0 cm | |
| 3 Sept. | Overcast | 12° /6° | 7 mm | 0 cm | |
| 4 Sept. | Mist | 12° /5° | 0.4 mm | 0 cm | |
| 5 Sept. | Mist | 14° /5° | 0.1 mm | 0 cm | |
| 6 Sept. | Patchy light drizzle | 14° /7° | 1.2 mm | 0 cm | |
| 7 Sept. | Light rain shower | 14° /7° | 10.9 mm | 0 cm | |
| 8 Sept. | Sunny | 14° /6° | 4.5 mm | 0 cm | |
| 9 Sept. | Sunny | 14° /5° | 1.7 mm | 0 cm | |
| 10 Sept. | Cloudy | 11° /5° | 4.4 mm | 0 cm | |
| 11 Sept. | Light rain shower | 10° /3° | 3.3 mm | 0 cm | |
| 12 Sept. | Overcast | 8° /3° | 8.3 mm | 0 cm | |
| 13 Sept. | Overcast | 9° /3° | 0.1 mm | 0 cm | |
| 14 Sept. | Overcast | 12° /5° | 0 mm | 0 cm | |
| 15 Sept. | Overcast | 8° /4° | 3.6 mm | 0 cm | |
| 16 Sept. | Moderate or heavy rain with thunder | 12° /2° | 5.9 mm | 0 cm | |
| 17 Sept. | Moderate or heavy rain with thunder | 9° /4° | 9.3 mm | 0.4 cm | |
| 18 Sept. | Light rain shower | 10° /5° | 2.7 mm | 0 cm | |
| 19 Sept. | Partly cloudy | 12° /5° | 3.7 mm | 0 cm | |
| 20 Sept. | Sunny | 17° /5° | 2.7 mm | 0 cm | |
| 21 Sept. | Moderate rain | 14° /4° | 28.8 mm | 0 cm | |
| 22 Sept. | Patchy rain possible | 10° /4° | 0.7 mm | 0 cm | |
| 23 Sept. | Patchy rain possible | 11° /5° | 1.3 mm | 0 cm | |
| 24 Sept. | Sunny | 10° /4° | 5.4 mm | 0 cm | |
| 25 Sept. | Sunny | 13° /1° | 0.2 mm | 0 cm | |
| 26 Sept. | Sunny | 10° /3° | 7.5 mm | 0 cm | |
| 27 Sept. | Overcast | 10° /3° | 4.1 mm | 0 cm | |
| 28 Sept. | Light rain shower | 11° /4° | 2.9 mm | 0 cm | |
| 29 Sept. | Light rain shower | 11° /5° | 4.9 mm | 0 cm | |
| 30 Sept. | Light rain shower | 11° /4° | 2.8 mm | 0 cm | |
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Important Notice
Our weather forecast for Southland 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 Southland forecast closer to your planned date for the most up-to-date weather information.
Southland in September - FAQ
What are the expected maximum and minimum temperatures in Southland 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 Southland during September?
Significant rainfall exceeding 143.81 mm is expected in Southland during September, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Southland in September 2025?
Southland experiences an average snowfall of 0.37 cm during September, occurring over 1 days.
What are the typical wind conditions in Southland during September?
The average wind speed in Southland during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Southland in September?
As you prepare for your trip to Southland in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Southland, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
Southland snow forecast September 2025
Track daily snowfall levels and discover Southland’s snowy potential this September ❄️
September rainfall patterns in Southland
Explore the daily rainfall trends and prepare for Southlands September weather 💧
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