Ushuaia Weather in September
Ushuaia in September averages 5°C (41°F) during the day and -3°C (27°F) at night. Keep in mind that quite a bit of snow/rainfall is expected this month.
Rainfall in Ushuaia in September
Records from the past 30 years suggest around 7 days of snow/rain, with 65 mm (2.6 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Ushuaia in September
September in Ushuaia brings low temperatures, with highs of 5°C (41°F) and nights around -3°C (27°F). Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights are well below freezing at -3°C (27°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation.
Sunshine in Ushuaia in September
The area enjoys a balanced 125 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in Ushuaia in September
Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.To explore more travel options, our weather planner can help you discover destinations worldwide.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Ushuaia's climate page.
Ushuaia Temperature in September
Min Temperature
-3°C (27°F)
Max Temperature
5°C (41°F)
Chance of Rain
24%
Precipitation
65 mm (2.6 in)
Rainy days
7 days
Humidity
76%
Windspeed
3 m/s (6 knots)
Sunshine
125 hours
Percentage Sunshine
37%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ushuaia typically stay consistent throughout September, with daily highs averaging around 5°C (41°F). Nights are cold, with lows typically ranging from 0°C (32°F) to 3°C (37°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Ushuaia in September
Browse day-by-day weather records for Ushuaia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ushuaia historical weather extremes in September
Our historical data for Ushuaia spans 2015 to 2025, revealing these weather extremes.
- Ushuaia recorded its highest September temperature of 15°C (59°F) on September 30, 2023.
- On September 16, 2015, Ushuaia saw its coldest September day with temperatures maxing out at -1°C (30°F).
- The coldest night in September in Ushuaia was on September 17, 2015, with a minimum of -7°C (19°F).
- The heaviest September precipitation occurred on September 1, 2019, when 18 mm (0.7 in) of precipitation fell.
Best Places in Argentina in September
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in September →
perfect weather
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What to Wear in Ushuaia in September
Dress warmly and in layers for your trip to Ushuaia in September. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Wet weather is likely, so pack waterproof gear for multiple rainy days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Ushuaia in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Ushuaia's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Ushuaia climate overview or explore weather in Argentina.
