Click on a day for an hourly weather forecast
The weather in Wanaka in September is very cold with temperatures between 0°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Wanaka. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
You can expect a few days of snow in Wanaka during September. It’s important to get out your snow boots and warm mittens to stay warm while you explore Wanaka.
Our weather forecast can give you a great sense of what weather to expect in Wanaka in September 2025.
If you’re planning to visit Wanaka in the near future, we highly recommend that you review the 14 day weather forecast for Wanaka before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 13° / 4° | 8 | 23 | 0 | 154 mm | Bad | Wanaka in January |
| February | 14° / 6° | 6 | 23 | 0 | 147 mm | Good | Wanaka in February |
| March | 13° / 6° | 6 | 25 | 0 | 113 mm | Ok | Wanaka in March |
| April | 12° / 4° | 8 | 22 | 0 | 155 mm | Bad | Wanaka in April |
| May | 9° / 1° | 9 | 20 | 2 | 182 mm | Awful | Wanaka in May |
| June | 6° / -1° | 8 | 19 | 3 | 133 mm | Awful | Wanaka in June |
| July | 4° / -3° | 11 | 15 | 5 | 186 mm | Awful | Wanaka in July |
| August | 6° / -2° | 9 | 19 | 3 | 162 mm | Awful | Wanaka in August |
| September | 9° / 0° | 9 | 17 | 4 | 189 mm | Awful | Wanaka in September |
| October | 10° / 1° | 10 | 19 | 2 | 193 mm | Awful | Wanaka in October |
| November | 11° / 3° | 8 | 21 | 1 | 152 mm | Bad | Wanaka in November |
| December | 11° / 3° | 8 | 23 | 0 | 192 mm | Bad | Wanaka in December |