Click on a day for an hourly weather forecast
The temperatures in Rotorua in September are quite cold with temperatures between 5°C and 14°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Rotorua. 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 Rotorua in September 2025.
If you’re planning to visit Rotorua in the near future, we highly recommend that you review the 14 day weather forecast for Rotorua before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 23° / 12° | 6 | 25 | 0 | 128 mm | Perfect | Rotorua in January |
| February | 23° / 12° | 5 | 23 | 0 | 125 mm | Perfect | Rotorua in February |
| March | 21° / 11° | 5 | 27 | 0 | 119 mm | Good | Rotorua in March |
| April | 18° / 9° | 6 | 24 | 0 | 150 mm | Good | Rotorua in April |
| May | 15° / 7° | 5 | 26 | 0 | 140 mm | Good | Rotorua in May |
| June | 12° / 6° | 7 | 23 | 0 | 165 mm | Bad | Rotorua in June |
| July | 11° / 4° | 7 | 24 | 0 | 162 mm | Bad | Rotorua in July |
| August | 13° / 5° | 8 | 23 | 0 | 169 mm | Bad | Rotorua in August |
| September | 14° / 5° | 9 | 21 | 0 | 168 mm | Ok | Rotorua in September |
| October | 17° / 7° | 7 | 24 | 0 | 130 mm | Ok | Rotorua in October |
| November | 19° / 8° | 7 | 23 | 0 | 121 mm | Ok | Rotorua in November |
| December | 21° / 11° | 8 | 23 | 0 | 155 mm | Ok | Rotorua in December |