Southland (Milford Sound)
September
Weather in Southland for September 2025
Your guide to Southland weather in September - trends and predictions
Rain Warning - See hour by hour.
The climate of Southland in September is quite snowy, averaging 11 snowy days.
According to Southland snow forecast for September 2025, no snow is expected until the end of the month.Until now, September 2025 in Southland is slightly cooler than the historical average by -1 °C.
The forecast for the next days in Southland predicts a temperature of 1 °C, which is cooler than the historical average.
In general, the average temperature in Southland at the beginning of September is 6.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 0 °C by the end of September.
Official Weather Alert ⚠️
Snow Forecast ❄️
Temperatures
9
Dry days
10
Rainy days
11
Snow days
6°/-2°
Temperatures
11 km/h
Avg max wind
91 %
Avg humidity
Southland Weather September
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What’s the Weather Like in Southland This September?
Discover the average temperatures and weather trends across Southland’s cities this September.
Temperatures trend during September in Southland
See the weather trend as well as the moving average line
September weather in Southland day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Sept. |  Moderate rain | 6° /-1° | 32.5 mm | 0.8 cm | |
| 2 Sept. |  Light rain | 6° /-2° | 23.4 mm | 2.5 cm | |
| 3 Sept. |  Moderate or heavy rain with thunder | 8° /-3° | 11.4 mm | 0 cm | |
| 4 Sept. |  Partly cloudy | 8° /-1° | 2.2 mm | 0 cm | |
| 5 Sept. |  Patchy rain possible | 8° /-2° | 20.5 mm | 0.4 cm | |
| 6 Sept. | Light drizzle | 6° /-3° | 3.2 mm | 1.6 cm | |
| 7 Sept. | Light rain shower | 6° /-3° | 24.2 mm | 0.3 cm | |
| 8 Sept. |  Light snow showers | 6° /-5° | 3.8 mm | 0.3 cm | |
| 9 Sept. | Moderate rain | 5° /-2° | 15.2 mm | 0 cm | |
| 10 Sept. | Moderate or heavy rain with thunder | 4° /-3° | 15.8 mm | 1.1 cm | |
| 11 Sept. |  Fog | 5° /-7° | 0.1 mm | 0 cm | |
| 12 Sept. | Light rain | 5° /-2° | 15.8 mm | 0 cm | |
| 13 Sept. |  Heavy snow | 3° /-1° | 13.3 mm | 6.1 cm | |
| 14 Sept. | Fog | 4° /-1° | 0.2 mm | 0 cm | |
| 15 Sept. | Heavy snow | 3° /-2° | 9.4 mm | 1.4 cm | |
| 16 Sept. | Patchy rain possible | 3° /-1° | 3.6 mm | 0 cm | |
| 17 Sept. |  Heavy rain | 5° /1° | 86.8 mm | 0 cm | |
| 18 Sept. | Heavy rain | 1° /-2° | 28.9 mm | 0 cm | |
| 19 Sept. | Partly cloudy | 1° /-9° | 0.1 mm | 0 cm | |
| 20 Sept. | Heavy rain | 1° /-2° | 50.3 mm | 0 cm | |
| 21 Sept. | Heavy rain | 7° /2° | 32.3 mm | 0 cm | |
| 22 Sept. | Moderate rain | 3° /-2° | 12.8 mm | 0 cm | |
| 23 Sept. | Heavy rain | 5° /1° | 20.3 mm | 0 cm | |
| 24 Sept. | Light rain shower | -1° /-2° | 19.2 mm | 0 cm | |
| 25 Sept. | Light rain shower | -2° /-3° | 7.3 mm | 0 cm | |
| 26 Sept. | Light rain shower | -2° /-3° | 13.9 mm | 0 cm | |
| 27 Sept. | Light rain shower | -2° /-4° | 11.9 mm | 0 cm | |
| 28 Sept. | Light rain shower | -3° /-4° | 15.3 mm | 0 cm | |
| 29 Sept. | Mist | -2° /-5° | 3 mm | 0 cm | |
| 30 Sept. | Patchy rain possible | 12° /-4° | 0 mm | 0 cm | |
| Next | |||||
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.
Change Month
Southland in September - FAQ
What are the expected maximum and minimum temperatures in Southland during September?
Prepare for cooler days with highs just around 6° and colder nights, dipping below -2°.
How much rainfall should be expected in Southland during September?
Significant rainfall exceeding 359.4 mm is expected in Southland during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Southland in September 2025?
Southland experiences an average snowfall of 19.14 cm during September, occurring over 11 days.
What are the typical wind conditions in Southland during September?
The average wind speed in Southland during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
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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