Click on a day for an hourly weather forecast
The temperatures in Griffith in September are quite cold with temperatures between 7°C and 19°C, warm clothes are a must.
The wather in Griffith in September can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Griffith in September 2025.
If you’re planning to visit Griffith in the near future, we highly recommend that you review the 14 day weather forecast for Griffith before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 34° / 21° | 3 | 28 | 0 | 39 mm | Ok | Griffith in January |
| February | 32° / 20° | 2 | 26 | 0 | 50 mm | Good | Griffith in February |
| March | 29° / 18° | 2 | 29 | 0 | 49 mm | Good | Griffith in March |
| April | 24° / 13° | 2 | 28 | 0 | 35 mm | Perfect | Griffith in April |
| May | 18° / 9° | 2 | 29 | 0 | 33 mm | Good | Griffith in May |
| June | 15° / 6° | 3 | 27 | 0 | 50 mm | Good | Griffith in June |
| July | 14° / 5° | 2 | 29 | 0 | 34 mm | Good | Griffith in July |
| August | 15° / 5° | 2 | 29 | 0 | 34 mm | Good | Griffith in August |
| September | 19° / 7° | 2 | 28 | 0 | 39 mm | Good | Griffith in September |
| October | 24° / 10° | 3 | 28 | 0 | 42 mm | Perfect | Griffith in October |
| November | 28° / 15° | 3 | 27 | 0 | 52 mm | Perfect | Griffith in November |
| December | 32° / 18° | 2 | 29 | 0 | 41 mm | Good | Griffith in December |