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The temperatures in Patagonia in September are quite cold with temperatures between 8°C and 19°C, warm clothes are a must.
The wather in Patagonia 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 Patagonia in September 2025.
If you’re planning to visit Patagonia in the near future, we highly recommend that you review the 14 day weather forecast for Patagonia before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 32° / 19° | 1 | 30 | 0 | 16 mm | Good | Patagonia in January |
| February | 30° / 18° | 1 | 27 | 0 | 23 mm | Good | Patagonia in February |
| March | 27° / 16° | 1 | 30 | 0 | 20 mm | Perfect | Patagonia in March |
| April | 22° / 12° | 1 | 29 | 0 | 34 mm | Good | Patagonia in April |
| May | 17° / 9° | 2 | 29 | 0 | 33 mm | Good | Patagonia in May |
| June | 13° / 6° | 2 | 28 | 0 | 19 mm | Ok | Patagonia in June |
| July | 12° / 4° | 2 | 29 | 0 | 17 mm | Ok | Patagonia in July |
| August | 15° / 6° | 2 | 29 | 0 | 16 mm | Good | Patagonia in August |
| September | 19° / 8° | 2 | 28 | 0 | 23 mm | Good | Patagonia in September |
| October | 22° / 11° | 2 | 29 | 0 | 38 mm | Good | Patagonia in October |
| November | 27° / 14° | 1 | 29 | 0 | 25 mm | Perfect | Patagonia in November |
| December | 30° / 17° | 1 | 30 | 0 | 12 mm | Good | Patagonia in December |