Climate guide for Ushuaia, Argentina

Ushuaia in September

Weather, crowds & best time to visit

How to read the score (0–10)
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September · Argentina

Best time to visit Ushuaia in September Weather, crowds & prices

Weather in Ushuaia in September

Average temperature 1°C, 30 mm of rain, about 1 days with 6+ hours of sunshine and 84% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

September score

4.8/10

Ranked #7 of 12 months

Full year for Ushuaia
Avg temp
1°C
Rainfall
30 mm
Humidity
84%
Days with 6h+ sun
1
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

September in Ushuaia scores 4.8/10 for nature and wildlife travel - ranked #7 of 12. Expect around 1°C, 30 mm of rain, and roughly 1 days with 6+ hours of sunshine this month.

Ushuaia edges the Beagle Channel beneath the Martial range, with Tierra del Fuego park and Antarctica departures close by.

September in Ushuaia — off-season conditions

September averages 1°C (34°F), cold enough that sightseeing works in bursts rather than in one long day on foot.

Expect 30 mm of rain — occasional showers rather than washed-out days — alongside about 1 days with 6+ hours of sunshine and 11.6 daylight hours.

It scores 4.8/10 here, 7th of 12 months, against 8.4/10 in the destination's best month.

Pack insulated layers, a windproof shell, gloves and boots with grip, footwear you can get muddy.

Figure on low-season pricing, with crowds are light for this destination.

Flexible dates? January scores 3.6 points higher here — enough to change the trip.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Ushuaia in September?
In September, Ushuaia averages 1°C, 30 mm of rain, and about 1 days with 6+ hours of sunshine. Its climate-comfort score is 4.8/10.
Is September a good time to visit Ushuaia?
September earns a 4.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Ushuaia in September?
Expect about 30 mm of rain in September. Average humidity is 84% and there are about 1 days with 6+ hours of sunshine.

Curated in Ushuaia

Tickets & experiences

Things to do in Ushuaia

Ushuaia, Argentina. Live activities and tours from GetYourGuide, matched to this destination.