The temperatures in Invercargill in September are quite cold with temperatures between 5°C and 12°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Invercargill. 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.
Please note that Invercargill can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Invercargill in September 2025.
If you’re planning to visit Invercargill in the near future, we highly recommend that you review the 14 day weather forecast for Invercargill before you arrive.
Temperatures
12° / 5°
Rainy Days
9
Snowy Days
1
Dry Days
20
Rainfall
149
mm
Sun Hours
8.9
Hrs
