Click on a day for an hourly weather forecast
The weather in Chile in September is very cold with temperatures between 3°C and 17°C, warm clothes are a must.
The wather in Chile 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 Chile in September 2025.
If you’re planning to visit Chile in the near future, we highly recommend that you review the 14 day weather forecast for Chile before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 25° / 12° | 0 | 31 | 0 | 7 mm | Perfect | Chile in January |
| February | 26° / 12° | 1 | 27 | 0 | 4 mm | Perfect | Chile in February |
| March | 25° / 11° | 0 | 31 | 0 | 2 mm | Perfect | Chile in March |
| April | 23° / 8° | 1 | 30 | 0 | 5 mm | Perfect | Chile in April |
| May | 19° / 6° | 2 | 29 | 0 | 48 mm | Good | Chile in May |
| June | 15° / 2° | 4 | 25 | 1 | 116 mm | Good | Chile in June |
| July | 14° / 1° | 2 | 27 | 1 | 59 mm | Good | Chile in July |
| August | 16° / 2° | 3 | 28 | 0 | 69 mm | Good | Chile in August |
| September | 17° / 3° | 2 | 28 | 0 | 30 mm | Good | Chile in September |
| October | 20° / 5° | 2 | 29 | 0 | 19 mm | Good | Chile in October |
| November | 23° / 8° | 1 | 29 | 0 | 7 mm | Perfect | Chile in November |
| December | 25° / 11° | 1 | 30 | 0 | 4 mm | Perfect | Chile in December |