SeasonMapArgentina in December
December is one of Argentina's weaker months (rank 10 of 12): its 17 destinations average 64/100, led by Cafayate at 91 — 27°C and 13 rainy days — while El Chaltén is cooler at 9°C and scores 73.
#10 of 12 months for Argentina · 17 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Argentina in December
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Cafayate | City | 27°C | 75 mm · 13 days | 91 tier S | — |
| 2 | El Calafate | Trekking hub | 15°C | 52 mm · 11 days | 90 tier S | Yes |
| 3 | Mendoza | City | 31°C | 27 mm · 4 days | 86 tier A | — |
| 4 | Puerto Madryn | Beach | 25°C | 19 mm · 4 days | 85 tier A | Yes |
| 5 | Buenos Aires | City | 30°C | 77 mm · 8 days | 83 tier A | — |
| 6 | Mar del Plata | Beach | 27°C | 84 mm · 9 days | 82 tier A | — |
| 7 | Rosario | City | 33°C | 74 mm · 8 days | 81 tier A | — |
| 8 | Córdoba | City | 34°C | 81 mm · 11 days | 80 tier A | — |
| 9 | San Salvador de Jujuy | City | 29°C | 254 mm · 23 days | 74 tier B | — |
| 10 | El Chaltén | Trekking hub | 9°C | 255 mm · 23 days | 73 tier B | Yes |
| 11 | Tilcara | Trekking hub | 23°C | 306 mm · 28 days | 69 tier C | — |
| 12 | Salta | City | 32°C | 270 mm · 22 days | 66 tier C | — |
| 13 | Puerto Iguazú | National park | 37°C | 159 mm · 13 days | 55 tier D | — |
| 14 | Ushuaia | Ski resort | 12°C | 97 mm · 23 days | 26 tier F | — |
| 15 | Las Leñas | Ski resort | 17°C | 28 mm · 4 days | 18 tier F | — |
| 16 | San Carlos de Bariloche | Ski resort | 20°C | 33 mm · 6 days | 17 tier F | — |
| 17 | San Martín de los Andes | Ski resort | 21°C | 36 mm · 6 days | 17 tier F | — |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means December is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.
What's on in Argentina in December
- Flamingos on Laguna Nimez · El Calafate · 1 Oct – 31 Mar (usually)
- Argentine summer holidays · El Calafate and 4 more places · 20 Dec – 28 Feb
- January summer shutdown · Buenos Aires · 24 Dec – 1 Feb (usually)
- Penguins on Isla Martillo · Ushuaia · 1 Oct – 5 Apr (usually)
- Lupins on the roadsides · San Carlos de Bariloche · 15 Nov – 10 Jan (usually)
- Southern right whales · Puerto Madryn · 1 Jun – 15 Dec (usually)
- Penguins at Punta Tombo · Puerto Madryn · 1 Sep – 31 Mar
Seasons in force
Peak crowds at 7 of Argentina's 8 well-known places this month.