Click on a day for an hourly weather forecast
The temperatures in Westfield in September are comfortable with low of 11°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Westfield 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 Westfield in September 2025.
If you’re planning to visit Westfield in the near future, we highly recommend that you review the 14 day weather forecast for Westfield before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -1° / -8° | 8 | 12 | 12 | 113 mm | Awful | Westfield in January |
| February | 1° / -8° | 7 | 9 | 13 | 132 mm | Awful | Westfield in February |
| March | 6° / -3° | 9 | 13 | 9 | 132 mm | Awful | Westfield in March |
| April | 13° / 2° | 9 | 19 | 2 | 140 mm | Awful | Westfield in April |
| May | 21° / 8° | 9 | 22 | 0 | 144 mm | Ok | Westfield in May |
| June | 25° / 12° | 9 | 22 | 0 | 152 mm | Good | Westfield in June |
| July | 29° / 16° | 9 | 22 | 0 | 154 mm | Ok | Westfield in July |
| August | 28° / 15° | 6 | 25 | 0 | 152 mm | Perfect | Westfield in August |
| September | 24° / 11° | 5 | 25 | 0 | 112 mm | Perfect | Westfield in September |
| October | 16° / 6° | 7 | 24 | 1 | 148 mm | Ok | Westfield in October |
| November | 9° / 0° | 7 | 20 | 3 | 110 mm | Awful | Westfield in November |
| December | 3° / -4° | 8 | 14 | 9 | 143 mm | Awful | Westfield in December |