Puerto Madryn weather in December
December in Puerto Madryn: warm, dry, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#3 of 12 months in Puerto Madryn · #307 of 1413 destinations to visit in December · comfort 85/100 (tier A)
- Days
- 28°C
- Nights
- 15°C
- Wet days
- 4
- Sun
- 13.2 h
- Humidity
- 40%
- Daylight
- 15 h
Traveller notes on Puerto Madryn in December
Other months in Puerto Madryn
Argentina's forum places August squarely in the colder, quieter stretch of the Patagonian season - real winter, needing a heavy coat and proper layers - but Puerto Madryn specifically stays worth the trip because whale season runs roughly June/July through early December, so August sightings are reliably good. Posters were clear the penguin colonies don't arrive until September, so anyone hoping to see both in one trip needs to time it later. September onward gets recommended as conditions across the wider region genuinely improve, but for whales alone, August already delivers.
Forum posters describe February temperatures in this part of Chubut province commonly reaching around 30C - notably warmer than much of the rest of Patagonia at the same time of year, since this is the height of the Southern Hemisphere summer. Posters are consistent that Patagonia's weather stays genuinely unpredictable regardless of season, with real rain or strong wind always a possibility worth packing for. February does fall within the good window (October through the end of March) for visiting the nearby Punta Tombo penguin colony, a popular half-day trip from town, though posters note it isn't the right time of year for orca sightings, which cluster around a different part of the calendar.
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Puerto Madryn climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Puerto Madryn in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer holidays in Argentina, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Puerto Madryn's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherPuerto Madryn's weather peaks December–February.
December includes Southern right whales.
Best weatherFair weatherToughest weather
What's on in Puerto Madryn in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Southern right whales
1 Jun – 15 Dec · usuallyWhale seasonBook earlyThe right whales come into Golfo Nuevo to calve and stay half the year; boats go from Puerto Piramides an hour up the road, and in a good spring you can watch them from the town beach. Source ↗
- Nature
Penguins at Punta Tombo
1 Sep – 31 MarBirdlife seasonMagellanic penguins hold the colony south of town from September, chicks on the ground by December and the whole lot gone by April. It is a long dirt-road day trip either way. Source ↗
- Season
Patagonian wind season
1 Oct – 28 Feb · usuallyRiskThe westerlies blow hardest through spring and summer, which decides whether the boats sail out of Piramides on a given morning and how much dust is on the road to the peninsula.
Where is Puerto Madryn?
Puerto Madryn in December — FAQ
- Is December a good time to visit Puerto Madryn?
- December in Puerto Madryn: warm, dry, with clean air — an excellent time to visit. It ranks #3 of 12 months for Puerto Madryn on SeasonMap's comfort score (85/100).
- What is the weather like in Puerto Madryn in December?
- In December, Puerto Madryn averages a daily high of 27.7°C and a low of 14.9°C, with about 18.7 mm of rain over roughly 3.9 rainy days.
- What is the air quality in Puerto Madryn in December?
- Puerto Madryn has a mean US Air Quality Index of about 20 in December.