Weather in Ушуая: What to Expect by Season

Ушуая sits at the southern tip of South America, where the weather stays cool and changeable throughout the year. Summers here are mild, with average temperatures hovering around +9 °C in January and February, while winters bring chilly conditions, especially in June and July, when averages drop to +2.6 °C. Even in the warmest months, nights can feel crisp, so layers are always useful.

The climate in Ушуая is maritime, meaning it rarely sees extreme temperatures but often experiences rapid shifts in weather. Rainfall is spread fairly evenly across the year, though February tends to be the wettest month, while September is one of the driest. Sunshine hours vary significantly, with the longest days in November and December, offering around 5.5 to 5.7 hours of daylight.

Temperatures in Ушуая follow a gentle curve, peaking in February at +9.9 °C and reaching their lowest in July at +2.6 °C. Even in summer, daytime highs rarely exceed +14 °C, while winter lows can dip close to 0 °C, particularly in June. The difference between day and night temperatures is noticeable year-round, so packing for both warmth and coolness is wise.

Spring and autumn in Ушуая bring moderate conditions. In October, averages rise to +6.5 °C, while April sees a gradual cooling to +6.3 °C. These shoulder seasons are ideal for those who prefer avoiding the chill of winter or the slightly busier summer months. Even in March and November, temperatures stay within a comfortable +8...+13 °C range during the day.

Rainfall in Ушуая is consistent but never overwhelming, with monthly totals ranging from 37 mm in September to 69 mm in February. Snow is possible in winter, though it’s more common in the surrounding mountains than in the city itself. The wettest period spans January to March, while September and October are relatively drier.

Despite the rain, Ушуая rarely feels soggy, thanks to its breezy coastal location. Even in the wettest months, showers are often brief, and the city’s compact size makes it easy to explore between them. If you’re visiting in May or June, expect slightly less precipitation, though the cooler temperatures mean any moisture can feel more persistent.

For a trip to Ушуая in summer (December to February), pack layers that can handle +6...+14 °C temperatures. A waterproof jacket is useful for rain, while a warm sweater or fleece will keep you comfortable during cooler evenings. Sturdy walking shoes are a must, especially if you plan to explore nearby trails or the Tierra del Fuego National Park.

Winter visitors (June to August) should prioritize warmth, with thermal layers, a windproof coat, gloves, and a hat. Temperatures can drop to 0 °C or below, and wind chill makes it feel even colder. Waterproof boots are helpful if you encounter snow or slush. In spring (September to November) or autumn (March to May), a mix of light and warm layers will cover the fluctuating conditions.

No matter when you visit Ушуая, a scarf and sunglasses are handy. The sun can be strong even on cooler days, and the wind off the Beagle Channel often picks up in the afternoon. A small backpack will help you adjust layers as the weather shifts, which it frequently does in this part of the world.