The main rule: layers, not one thick parka
Ushuaia is a city at 54° south, where the weather shifts several times a day. In the morning it can be +8 °C and sun, by lunch — rain with wind, and in the evening — clear sky and +3 °C. The only strategy that works is the layering system that everyone who lives and works outdoors in Patagonia uses.
Three layers that decide everything
Base layer (underwear). Job — wick moisture away from the body. Best material — merino wool (Icebreaker, Smartwool) or synthetic (Patagonia Capilene, The North Face). A cotton T-shirt is the worst choice: it soaks up sweat, doesn't dry, and you start getting cold on the first stop.
Mid layer (insulation). Fleece jacket (Polartec 200 or equivalent) or a thin down jacket (micro puff). Fleece works better in rainy weather — it warms even when wet. Down is lighter and more packable, but afraid of moisture if there's no DWR treatment.
Outer layer (wind and rain protection). A membrane jacket with taped seams — mandatory. Gore-Tex, eVent, or analogs. Don't confuse it with a regular windbreaker: in Ushuaia rain can fall horizontally. Budget option — Decathlon jackets with HydroWay membrane, they cost 3–4 times less than premium brands and do the job.
Temperatures by season: what to actually expect
Forget the phrase "it's always cold at the end of the world." Ushuaia isn't Antarctica, it's a fairly mild climate — just windy and damp.
Summer (December – February)
- Temperature: +5 °C at night, +10–15 °C during the day, peaks up to +18–20 °C
- Daylight: 17–18 hours, gets dark after 22:00
- Rain: relatively dry, but it can start at any moment
What to wear: thermal base layer (thin), fleece or light sweater, membrane jacket in the pack. In the sun during the day a long-sleeve T-shirt is sometimes enough, but the wind on the Beagle Channel cools you down instantly. For the evening — a warm sweater.
Legs: trekking pants or light softshell trousers. Shorts work only in town on a windless day.
Autumn (March – May)
- Temperature: +1–2 °C at night, +5–10 °C during the day
- Daylight: shrinking from 13 to 9 hours
- Rain: more frequent; by May, first snow in the mountains
What to wear: the full three-layer set every day. Insulation becomes critical — fleece 200 + membrane. Hat and gloves mandatory morning and evening. For Beagle Channel boat trips — add a warm scarf or buff.
Winter (June – August)
- Temperature: -5 °C at night, 0–4 °C during the day
- Daylight: 7–8 hours, sunrise at 10:00, sunset at 17:00
- Precipitation: snow, blizzards, strong wind
What to wear: thermal base (mid- or heavyweight), fleece + down jacket, membrane shell on top. Warm winter pants. Hat, gloves, scarf — nothing works without them. If you plan snowshoeing or skiing at Cerro Castor — ski clothing is ideal.
Spring (September – November)
- Temperature: 0–3 °C at night, +5–10 °C during the day
- Daylight: rises fast; by November — 16 hours
- Rain: the wettest period, the wind picks up
What to wear: like autumn, but with a wind adjustment. Spring in Ushuaia is the most unpredictable time. A warm jacket and a shell are needed always, even if the morning looks sunny.
Clothing for specific activities
Every tour calls for its own approach to kit. Concrete recommendations:
Trek to Laguna Esmeralda (14 km, 5–7 hours)
The trail goes through forest, boggy sections, and an exposed slope with wind. Elevation gain — 400 m. In summer you get hot on the climb and cold by the lake.
- Thermal base (thin in summer, medium in autumn/spring)
- Fleece — tie around your waist if you're hot on the climb
- Membrane jacket — mandatory, even if it's sunny in the morning
- Trekking pants (not jeans!)
- Gaiters — the trail is boggy in places
- Trekking boots with ankle support
- Buff, thin gloves
- Sunglasses and SPF 50 cream
Beagle Channel boat tours (catamaran, 4–6 hours)
On the water the temperature feels 5–8 °C lower than in town. Constant wind. Spray possible.
- Maximum insulation: thermal base + fleece + down + membrane
- Warm hat covering the ears
- Gloves (preferably windstopper)
- Buff or scarf
- Footwear — warm, non-slip (the deck can be wet)
Kayaking
In a kayak you sit, you don't move much, and you can get splashed. We provide a dry suit, but you need the right clothes under it.
- Thermal base — synthetic, not cotton
- Warm fleece
- Merino socks (feet are the first to get cold)
- Spare dry clothes in the car
Martial glacier trek and the National Park
In the mountains 500–1000 m above the city the temperature is 4–6 °C lower. Wind is stronger. Snow can lie even in summer.
- Full three-layer set
- Boots with a grippy sole (Vibram or equivalent)
- Trekking poles (optional, but very useful on the descent)
- Gaiters — protect from snow and mud
Footwear: when you need boots and when sneakers will do
This is one of the most frequent questions. The answer depends on the route.
Trekking boots (mid-cut, with ankle support) — for all mountain routes: Laguna Esmeralda, Martial glacier, National Park. The trails are rocky, with wet roots and ankle-deep mud. Sneakers there mean wet feet and a sprain risk.
Trail runners — acceptable in summer on easy trails if you have experience and strong ankles. But I recommend boots.
City shoes — for walks around town, restaurants, museums. The sidewalks in town are fine, but there's ice in winter.
Rubber boots — for the crab fishing tour or if you go to Esmeralda in the wet season. You can rent on site.
Important: don't bring brand-new shoes on a trek. Break them in for at least 2–3 days in advance.
Sun protection: don't joke about the ozone hole
Ushuaia sits next to the Antarctic ozone hole. From September to November, UV levels can be extreme — index 10–11 even under overcast skies. You can burn in 15 minutes.
- SPF 50 — mandatory, reapply every 2 hours
- Sunglasses with a UV filter (category 3–4). Snow and water amplify the effect
- Cap or wide-brim hat
- Lip balm with SPF — lips burn first
Rain: 200+ rainy days a year
Rain in Ushuaia isn't a tropical downpour — it's a fine drizzle that goes on for hours. It soaks anything not membrane-protected without you noticing.
Mandatory:
- Membrane jacket with a hood (not just a windbreaker!)
- Membrane pants or pull-on rain pants (worn over trekking pants)
- Waterproof pack cover (rain cover)
- Zip-lock bags for documents and phone
Pro tip: buy a cheap poncho rain shell in Ushuaia just in case. Costs $5–10, weighs nothing, saves you in a sudden downpour.
What NOT to bring: typical mistakes
Jeans. Under no circumstances bring jeans on a trek. Cotton denim soaks up water, doesn't dry, chafes, and doesn't stretch. Rule number one.
Cotton underwear and T-shirts. For any physical activity — synthetic or merino only. Cotton is the traveler's enemy in a wet climate.
One thick down jacket instead of a layer system. A thick puffer without wind protection blows through in seconds on the wind off the channel. And when you're climbing, you'll cook in it and sweat.
Umbrella. Useless in 50–70 km/h wind. I've seen umbrellas break in the first minute.
Too much clothing. No need to drag your entire wardrobe. A base set of 3 layers + a change of underwear per day is enough. Hotels have laundry.
Where to buy or rent gear in Ushuaia
If you forgot something or decided not to drag it from home — Ushuaia has options.
Stores:
- Boutique del Libro (San Martín) — a chain that sells a basic outdoor wardrobe
- Puyehue and Kaupen on the main street — local brands, good quality at fair prices
- Decathlon — not in Ushuaia, but in Buenos Aires. If you're flying via BA — stock up there
Rental:
- Trekking poles, gaiters, snowshoes — many shops on San Martín rent them
- Dry suits for kayaking — we provide them, you don't need to buy
- Ski gear — at Cerro Castor and rental outlets in town
Approximate prices: fleece jacket — 30–50 USD, membrane jacket — 80–150 USD, trekking boots — 70–120 USD. More expensive than in Europe or the US, but a lifesaver in an emergency.
Universal packing list for a trip to Ushuaia
On you and in carry-on
- Thermal base (top + bottom)
- Fleece jacket
- Membrane jacket
- Trekking pants
- Trekking boots (on your feet, so they don't take suitcase space)
In the suitcase
- Spare thermal base set
- Down jacket (light, packable)
- Membrane pants or pull-on rain pants
- Warm hat + buff
- Gloves (thin fleece + warm windproof)
- Warm socks — 3–4 pairs (merino)
- Sunglasses
- SPF 50 cream + lip balm with SPF
- Rain cover for pack
- Gaiters (if you're going to Esmeralda)
- Light city clothes for the evening
Optional, but useful
- Trekking poles (can be rented)
- Headlamp (it gets dark early in winter)
- Thermos — hot tea on the trail is priceless
- Sit pad (for breaks on rocks)
Bottom line: three things you shouldn't travel without
- Membrane jacket — protects from rain and wind; without it there's nothing to do in Ushuaia
- Trekking boots — if you plan even one hike
- Synthetic or merino base layer — the foundation of comfort in any season
Everything else can be bought on site. But these three things are better brought from home, tested and broken in. Ushuaia isn't the place to skimp on gear. The right clothes are the difference between "it was incredible" and "I froze and don't remember anything."