Click on a day for an hourly weather forecast
The temperatures in Waitakere in September are usually low and can range between 11°C and 15°C.
You can expect rain for roughly half of the month of September in Waitakere. 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 Waitakere in September 2025.
If you’re planning to visit Waitakere in the near future, we highly recommend that you review the 14 day weather forecast for Waitakere before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 22° / 17° | 4 | 27 | 0 | 85 mm | Good | Waitakere in January |
| February | 23° / 18° | 4 | 25 | 0 | 101 mm | Perfect | Waitakere in February |
| March | 21° / 17° | 4 | 27 | 0 | 100 mm | Good | Waitakere in March |
| April | 19° / 15° | 5 | 25 | 0 | 114 mm | Good | Waitakere in April |
| May | 17° / 13° | 7 | 24 | 0 | 149 mm | Ok | Waitakere in May |
| June | 15° / 12° | 7 | 23 | 0 | 169 mm | Ok | Waitakere in June |
| July | 14° / 11° | 7 | 24 | 0 | 141 mm | Ok | Waitakere in July |
| August | 14° / 11° | 9 | 22 | 0 | 159 mm | Ok | Waitakere in August |
| September | 15° / 11° | 8 | 22 | 0 | 139 mm | Ok | Waitakere in September |
| October | 16° / 12° | 6 | 25 | 0 | 98 mm | Good | Waitakere in October |
| November | 18° / 13° | 5 | 25 | 0 | 94 mm | Good | Waitakere in November |
| December | 20° / 16° | 5 | 26 | 0 | 107 mm | Good | Waitakere in December |