The weather in Milford Sound in September is very cold with temperatures between 1°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Milford Sound. 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 Milford Sound during September. It’s important to get out your snow boots and warm mittens to stay warm while you explore Milford Sound.
Our weather forecast can give you a great sense of what weather to expect in Milford Sound in September 2025.
If you’re planning to visit Milford Sound in the near future, we highly recommend that you review the 14 day weather forecast for Milford Sound before you arrive.
