Ushuaia in December
In December, Ushuaia averages 13°C (55°F) during the day and 4°C (39°F) at night, with around 10 days of rain (45 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Plan for unsettled weather and bring rain gear.
December in Ushuaia is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How December compares to the rest of the year in Ushuaia
December is one of the warmest months in Ushuaia (3rd of 12) and one of the driest months (10th of 12). Daytime temperature runs 4°C above the annual average (9°C). December runs 1°C warmer than November (12°C) and warms a further 1°C into January (14°C).
December sunrise & sunset in Ushuaia
Times shown for Ushuaia local time (America/Argentina/Ushuaia), calculated for the 15th of December. They shift by a few minutes day to day across the month.
Photography light in Ushuaia — December
Golden-hour and blue-hour windows for the 15th of December, in Ushuaia's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Ushuaia in December
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on December's tier (Shoulder) and Ushuaia's popularity.
Crowds & pricing — December in Ushuaia
Ushuaia is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — December in Ushuaia
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Ushuaia in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 14°C / 57°F | 5°C / 41°F | 40 mm | 10 | 0 |
| February | 14°C / 57°F | 4°C / 39°F | 40 mm | 10 | 0 |
| March | 12°C / 54°F | 3°C / 37°F | 45 mm | 10 | 0 |
| April | 9°C / 48°F | 1°C / 34°F | 50 mm | 10 | 0 |
| May | 5°C / 41°F | -1°C / 30°F | 55 mm | 11 | 3 |
| June | 3°C / 37°F | -2°C / 28°F | 50 mm | 12 | 5 |
| July | 3°C / 37°F | -2°C / 28°F | 45 mm | 12 | 5 |
| August | 5°C / 41°F | -1°C / 30°F | 40 mm | 11 | 3 |
| September | 7°C / 45°F | 1°C / 34°F | 40 mm | 10 | 1 |
| October | 10°C / 50°F | 2°C / 36°F | 35 mm | 9 | 0 |
| November | 12°C / 54°F | 3°C / 37°F | 40 mm | 9 | 0 |
| December | 13°C / 55°F | 4°C / 39°F | 45 mm | 10 | 0 |
Other cities with similar December weather
🌍 See the full ranked list of climate twins for Ushuaia in December →
Frequently asked questions
How hot is Ushuaia in December?
In December, Ushuaia averages a high of 13°C (55°F) and a low of 4°C (39°F) — generally cool.
Does it rain a lot in Ushuaia in December?
December can be fairly wet in Ushuaia, with about 10 rainy days on average.
Is December a good time to visit Ushuaia?
December is cool. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Ushuaia in December?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full December packing list for Ushuaia for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.