Southland (Milford Sound)
September
Weather in Southland for September 2025
Your guide to Southland weather in September - trends and predictions
The climate of Southland in September is quite snowy, averaging 12 snowy days.
In general, the average temperature in Southland at the beginning of September is 8.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 7 °C by the end of September.
Snow Forecast ❄️
Temperatures
8
Dry days
10
Rainy days
12
Snow days
6°/-2°
Temperatures
11 km/h
Avg max wind
92 %
Avg humidity
Southland in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  7° | 2  8° | 3  8° | 4  8° | 5  10° | 6 8° | 7 8° |
| 8  7° | 9 4° | 10 3° | 11  5° | 12 4° | 13  2° | 14 3° |
| 15 3° | 16  3° | 17  1° | 18 4° | 19 4° | 20 5° | 21 5° |
| 22 5° | 23  6° | 24 4° | 25 6° | 26 5° | 27 4° | 28  8° |
| 29  10° | 30 12° |
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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. | Moderate rain | 7° /0° | 53.7 mm | 0 cm | |
| 2 Sept. | Light rain | 8° /0° | 39.5 mm | 0 cm | |
| 3 Sept. | Moderate or heavy rain with thunder | 8° /0° | 22.8 mm | 0 cm | |
| 4 Sept. | Partly cloudy | 8° /-1° | 0 mm | 0 cm | |
| 5 Sept. | Patchy rain possible | 10° /-3° | 0.1 mm | 0 cm | |
| 6 Sept. | Light drizzle | 8° /1° | 1.2 mm | 0 cm | |
| 7 Sept. | Light rain shower | 8° /1° | 45 mm | 0 cm | |
| 8 Sept. | Light snow showers | 7° /0° | 7.5 mm | 0.6 cm | |
| 9 Sept. | Moderate rain | 4° /1° | 29.6 mm | 0 cm | |
| 10 Sept. | Moderate or heavy rain with thunder | 3° /-2° | 22.2 mm | 0.8 cm | |
| 11 Sept. | Fog | 5° /-7° | 0.2 mm | 0 cm | |
| 12 Sept. | Light rain | 4° /0° | 30.5 mm | 0 cm | |
| 13 Sept. | Heavy snow | 2° /1° | 8.3 mm | 5.9 cm | |
| 14 Sept. | Fog | 3° /-1° | 0.1 mm | 0 cm | |
| 15 Sept. | Heavy snow | 3° /-2° | 9.4 mm | 1.4 cm | |
| 16 Sept. | Light sleet | 3° /-3° | 7.3 mm | 4.8 cm | |
| 17 Sept. | Moderate or heavy snow showers | 1° /-9° | 1.9 mm | 1.3 cm | |
| 18 Sept. | Patchy moderate snow | 4° /-7° | 2 mm | 0.2 cm | |
| 19 Sept. | Light rain shower | 4° /-1° | 11 mm | 0.1 cm | |
| 20 Sept. | Light sleet | 5° /-5° | 9.9 mm | 0 cm | |
| 21 Sept. | Light rain shower | 5° /-5° | 0.7 mm | 0 cm | |
| 22 Sept. | Light drizzle | 5° /0° | 8.1 mm | 0 cm | |
| 23 Sept. | Light sleet showers | 6° /-2° | 3.6 mm | 1.8 cm | |
| 24 Sept. | Light sleet showers | 4° /-4° | 17.6 mm | 1.5 cm | |
| 25 Sept. | Patchy rain possible | 6° /-8° | 0.2 mm | 0 cm | |
| 26 Sept. | Moderate rain | 5° /0° | 25.9 mm | 0.4 cm | |
| 27 Sept. | Moderate or heavy snow showers | 4° /-4° | 1.1 mm | 0.3 cm | |
| 28 Sept. | Light freezing rain | 8° /-6° | 0.1 mm | 0 cm | |
| 29 Sept. | Overcast | 10° /-3° | 0 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.
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 19.1 cm during September, occurring over 12 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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