Click on a day for an hourly weather forecast
The weather in San Martin de los Andes in September is very cold with temperatures between 0°C and 10°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in San Martin de los Andes 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.
You can expect a few days of snow in San Martin de los Andes during September. It’s important to get out your snow boots and warm mittens to stay warm while you explore San Martin de los Andes.
Our weather forecast can give you a great sense of what weather to expect in San Martin de los Andes in September 2026.
If you’re planning to visit San Martin de los Andes in the near future, we highly recommend that you review the 14 day weather forecast for San Martin de los Andes before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 24° / 8° | 1 | 30 | 0 | 28 mm | Perfect | San Martin de los Andes in January |
| February | 23° / 8° | 1 | 27 | 0 | 29 mm | Perfect | San Martin de los Andes in February |
| March | 20° / 7° | 2 | 29 | 0 | 25 mm | Good | San Martin de los Andes in March |
| April | 15° / 4° | 3 | 27 | 1 | 52 mm | Good | San Martin de los Andes in April |
| May | 10° / 2° | 5 | 25 | 1 | 92 mm | Ok | San Martin de los Andes in May |
| June | 6° / 0° | 8 | 14 | 7 | 152 mm | Awful | San Martin de los Andes in June |
| July | 5° / -2° | 10 | 11 | 11 | 153 mm | Awful | San Martin de los Andes in July |
| August | 7° / -1° | 9 | 11 | 11 | 154 mm | Awful | San Martin de los Andes in August |
| September | 10° / 0° | 5 | 19 | 6 | 66 mm | Bad | San Martin de los Andes in September |
| October | 13° / 2° | 4 | 24 | 3 | 69 mm | Bad | San Martin de los Andes in October |
| November | 18° / 4° | 3 | 25 | 1 | 42 mm | Good | San Martin de los Andes in November |
| December | 21° / 6° | 2 | 29 | 0 | 36 mm | Good | San Martin de los Andes in December |