What to pack for El Chaltén in December
Heading to El Chaltén in December? Here's a packing list built directly from local climate averages — not generic blog advice.
December is one of the hottest months of the year in El Chaltén (ranked 3 of 12) and moderate for rainfall (ranked 5 of 12). Day temperatures are 2°C warmer than November and still warming into January — so this month's packing list won't be identical to November's or January's.
Essentials
- ★ Passport + a photocopy stored separately Travel documents
- ★ Phone + charging cables (USB-C, Lightning as needed) Daily essentials
- • Refillable water bottle (1L) Reduces single-use plastic + saves money
- • Compact daypack (15–20L) For day trips, hands-free walking
- • Travel-size first-aid kit (band-aids, ibuprofen, antihistamines) Pharmacy access varies
Tops
- ★ Long-sleeve shirts (3) — flannel, oxford, or thin knit Avg high 13.2°C — mild
- • T-shirts (3) — cotton or merino For warmer afternoons
- • Light cardigan or pullover sweater Cool mornings/evenings
Bottoms
- ★ Jeans or chinos (2) Versatile for mild weather
- • 1 dressier pair (dark chinos or trousers) Restaurants/evenings — works for smart-casual settings
Outerwear & layers
- ★ Mid-weight jacket — packable down (e.g. Uniqlo Ultra-Light Down) or trench Overnight lows 5.8°C — cool
- · Light scarf Versatile + comfort
Rain & weather protection
- ★ Full waterproof shell jacket (Gore-Tex or similar — NOT a 'water resistant' soft shell) 18 rain days, 190 mm
- ★ Compact umbrella (windproof, vented) Heavy rain — basic umbrellas invert in wind
- ★ Quick-dry pants (1 pair) Cotton/jeans become miserable when soaked
- • Waterproof phone pouch + dry-bags for electronics Heavy rain WILL find its way in
Footwear
- ★ Insulated waterproof boots (Blundstone, Sorel, or hiking-grade) Cold + possibly wet conditions
- ★ Wool socks (5+ pairs) — Smartwool, Darn Tough Warmth and dryness; cotton socks freeze fingers in damp cold
Power, voltage & adapters
- ★ 220V at 50Hz Mains electricity standard for Argentina
- ★ Plug types: I, C (Type I — angled flat 3-pin (Australia/NZ/China/Argentina)) Most common: I. Older buildings may also use C.
- ★ From the US/Canada: bring an A→I travel adapter US Type A/B plugs don't fit Argentina's outlets
- ★ Check device voltage labels: 'INPUT: 100–240V' is dual-voltage (most modern phones, laptops, chargers — safe). Single-voltage 110V devices (older hairdryers, curling irons) need a step-down converter, not just an adapter. Argentina runs 220V — too high for US-only 110V devices
- • From the UK/Ireland: bring a G→I travel adapter UK Type G plugs don't fit Argentina's outlets
- · Easiest option: a universal travel adapter (e.g. Anker, Epicka) that handles A/B/C/E/F/G/I in one — covers ~95% of countries. If you travel to multiple regions
✅ Can you carry-on?
Yes — December in El Chaltén packs comfortably into a carry-on. Conditions stay mild enough that you can rely on light layers, one pair of shoes, and a packable rain shell.
24 suggested items total — 5 essentials, 7 clothing items, 2 pairs of shoes.
What you can leave at home
Based on El Chaltén's December climate, here's what won't earn its bag space:
- shorts & sandals (too cool to wear comfortably)
- beach towel (unless you're brave)
- delicate suede or leather shoes (they'll get ruined)
- snow boots and ice grips
How this list was built
Every recommendation above maps to specific climate data for El Chaltén in December: average high (13.2°C), average low (5.8°C), expected rain days (18), and any peak hazard seasons. Heavier items appear at colder temperatures; rain gear scales with how often it rains; sun protection appears when it's warm and dry.
The ★ items are essential — pack these first. The • items are recommended for comfort. The · items are nice-to-have if you have space.
Other months in El Chaltén
Daily forecasts, climate averages, and the best activities for the season.