Click on a day for an hourly weather forecast
The weather in Ushuaia in September is very cold with temperatures between -2°C and 5°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Ushuaia. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Let it snow! You can expect Ushuaia to be covered in white during the month of September. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Ushuaia in September 2025.
If you’re planning to visit Ushuaia in the near future, we highly recommend that you review the 14 day weather forecast for Ushuaia before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 12° / 3° | 11 | 18 | 2 | 148 mm | Awful | Ushuaia in January |
| February | 12° / 3° | 10 | 16 | 2 | 126 mm | Awful | Ushuaia in February |
| March | 10° / 2° | 11 | 17 | 4 | 132 mm | Awful | Ushuaia in March |
| April | 7° / 1° | 12 | 10 | 8 | 112 mm | Awful | Ushuaia in April |
| May | 4° / -1° | 10 | 11 | 11 | 101 mm | Awful | Ushuaia in May |
| June | 2° / -3° | 11 | 3 | 18 | 102 mm | Awful | Ushuaia in June |
| July | 1° / -4° | 11 | 4 | 18 | 97 mm | Awful | Ushuaia in July |
| August | 3° / -3° | 10 | 4 | 19 | 99 mm | Awful | Ushuaia in August |
| September | 5° / -2° | 9 | 6 | 15 | 89 mm | Awful | Ushuaia in September |
| October | 8° / -1° | 10 | 9 | 12 | 107 mm | Awful | Ushuaia in October |
| November | 10° / 1° | 11 | 10 | 9 | 121 mm | Awful | Ushuaia in November |
| December | 11° / 2° | 12 | 14 | 5 | 145 mm | Awful | Ushuaia in December |