Puerto Madryn weather in May

May in Puerto Madryn: cool, dry, with clean air — a good time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Puerto Madryn🇦🇷 Argentina · Patagonia · Beach66
  1. 88Jan
  2. 89Feb
  3. 84Mar
  4. 74Apr
  5. 66May
  6. 58Jun
  7. 61Jul
  8. 68Aug
  9. 75Sep
  10. 79Oct
  11. 80Nov
  12. 85Dec

#10 of 12 months in Puerto Madryn · #1092 of 1413 destinations to visit in May · comfort 66/100 (tier C)

Days
16°C
Nights
7°C
Wet days
3
Sun
7.3 h
Humidity
59%
Daylight
10 h
Puerto Madryn, Argentina
Photo: Daro Ramos · Pexels

Traveller notes on Puerto Madryn in May

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.
PatagonianCoastRegular · August · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

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Puerto Madryn climate normals — May

Daytime high16°C / 61°F🙂 cool
Nighttime low7°C / 44°F
Feels like (high)12°C / 54°F
Sea temperature15°C / 58°F🥶 cold sea
Rainfall13 mm / 0.5 in☀️ dry
Rainy days3 days
Humidity59%🍃 comfortable
Dew point3°C / 37°F
Sunshine7.3 h/day
Daylight9.7 h
Wind24 km/h / 15 mph
Air quality (US AQI)17🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Puerto Madryn in May

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.

Quietone of its worst months for weather(estimated)

JFMAMJJASOND

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).

Toughest weatherPuerto Madryn's weather peaks December–February.

JFMAMJJASOND

Best weatherFair weatherToughest weather

Where is Puerto Madryn?

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Puerto Madryn in May — FAQ

Is May a good time to visit Puerto Madryn?
May in Puerto Madryn: cool, dry, with clean air — a good time to visit. It ranks #10 of 12 months for Puerto Madryn on SeasonMap's comfort score (66/100).
What is the weather like in Puerto Madryn in May?
In May, Puerto Madryn averages a daily high of 15.9°C and a low of 6.7°C, with about 13.4 mm of rain over roughly 2.9 rainy days.
What is the air quality in Puerto Madryn in May?
Puerto Madryn has a mean US Air Quality Index of about 17 in May.