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The temperatures in Mendoza in September are quite cold with temperatures between 8°C and 19°C, warm clothes are a must.
The wather in Mendoza in September can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Please note that Mendoza can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Mendoza in September 2025.
If you’re planning to visit Mendoza in the near future, we highly recommend that you review the 14 day weather forecast for Mendoza before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 31° / 19° | 6 | 25 | 0 | 137 mm | Good | Mendoza in January |
| February | 29° / 18° | 5 | 24 | 0 | 137 mm | Good | Mendoza in February |
| March | 26° / 15° | 3 | 29 | 0 | 57 mm | Perfect | Mendoza in March |
| April | 22° / 12° | 1 | 29 | 0 | 30 mm | Good | Mendoza in April |
| May | 16° / 8° | 1 | 30 | 0 | 15 mm | Good | Mendoza in May |
| June | 12° / 4° | 1 | 29 | 0 | 10 mm | Ok | Mendoza in June |
| July | 12° / 3° | 0 | 30 | 1 | 9 mm | Ok | Mendoza in July |
| August | 16° / 6° | 1 | 30 | 1 | 13 mm | Good | Mendoza in August |
| September | 19° / 8° | 1 | 28 | 1 | 13 mm | Good | Mendoza in September |
| October | 23° / 11° | 3 | 28 | 0 | 44 mm | Perfect | Mendoza in October |
| November | 27° / 15° | 5 | 25 | 0 | 91 mm | Perfect | Mendoza in November |
| December | 29° / 18° | 4 | 27 | 0 | 99 mm | Good | Mendoza in December |