The temperatures in Wellington in September are usually low and can range between 50°F and 55°F.
You can expect about 3 to 8 days of rain in Wellington during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Wellington in September 2025.
If you’re planning to visit Wellington in the near future, we highly recommend that you review the 14 day weather forecast for Wellington before you arrive.
Temperatures
55° / 50°
Rainy Days
5
Snowy Days
0
Dry Days
25
Rainfall
2.91
in
Sun Hours
9.7
Hrs
