The temperatures in Masterton in September are quite cold with temperatures between 9°C and 13°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Masterton. 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.
Our weather forecast can give you a great sense of what weather to expect in Masterton in September 2025.
If you’re planning to visit Masterton in the near future, we highly recommend that you review the 14 day weather forecast for Masterton before you arrive.
Temperatures
13° / 9°
Rainy Days
8
Snowy Days
0
Dry Days
22
Rainfall
129
mm
Sun Hours
8.8
Hrs
