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On Air WeatherPets Network WPET 7 · Buenos Aires Bureau

Buenos Aires weather, reported by Guinness

The live pet-owner forecast for Buenos Aires, Argentina: walk verdicts, paw-safety context, and a very good weather anchor. Real forecast data, reported with more tail wags than your usual station.

Guinness, animated pixel weather reporter
Guinness
Buenos Aires Bureau Chief

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Can you walk your dog in Buenos Aires right now?

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Verdicts use the same temperature bands as our vet-sourced guides to safe walking temperatures and cold-weather limits, including the humidity bump and the 7-second pavement test.

Next 12 hours in Buenos Aires

10-day Buenos Aires forecast

Live forecast:  Weather. Updates every few minutes.

What Buenos Aires weather usually means for pets

Averages tell you what to plan a wardrobe around. Here is Buenos Aires's typical year with a dog-walk comfort rating for each month, using the same bands as the live verdict above.

MonthAvg highAvg lowTypical midday walk
January86.2°F / 30°C68.4°F / 20°CRisky — early/late only
February84°F / 29°C66.9°F / 19°CRisky — early/late only
March80.6°F / 27°C63.9°F / 18°CCaution — shade & water
April73.8°F / 23°C57.4°F / 14°CFine for most dogs
May66.9°F / 19°C52°F / 11°CSafe — great walk weather
June61.5°F / 16°C47.1°F / 8°CSafe — great walk weather
July59.9°F / 16°C45.5°F / 8°CSafe — great walk weather
August64.2°F / 18°C48°F / 9°CSafe — great walk weather
September67.5°F / 20°C51.1°F / 11°CSafe — great walk weather
October72.7°F / 23°C56.1°F / 13°CFine for most dogs
November78.8°F / 26°C61°F / 16°CCaution — shade & water
December84.2°F / 29°C65.3°F / 19°CRisky — early/late only

Record high: 110°F / 43°C (January 29, 1957) · Record low: 22°F / -6°C (July 9, 1918)

Climate data: Servicio Meteorologico Nacional (Argentina) 1991-2020 climate normals (Buenos Aires Central Observatory).

Buenos Aires weather facts every pet owner should know

  • January in Buenos Aires averages highs of 86.2F, well past the 82F risky band for dog walks, so porteno dogs do their summer strolling at dawn or after dark.
  • The city's record high of 110F, set January 29, 1957, remains a warning: on real heat waves, pavement in the humid Rio de la Plata air can burn paws long after midday.
  • Winters are gentle: July highs average 59.9F with lows of 45.5F, right at the 45F coat threshold, so most dogs need only a light sweater on the chilliest mornings.
  • Sitting on the humid estuary of the Rio de la Plata, Buenos Aires pairs its heat with sticky humidity, which makes an 86F afternoon feel far hotter to a panting dog than the same reading in a dry climate.
Daytime panorama of the Buenos Aires skyline
Daytime panorama of the Buenos Aires skyline. Photo: Luis Argerich from Buenos Aires, Argentina, CC BY 2.0, via Wikimedia Commons

Buenos Aires pet weather questions

December through February is the danger window: January highs average 86.2F, above the 82F risky line, and humidity makes it feel worse. Walk before 9 am or after 8 pm in summer, and on heat-wave days approaching the record 110F keep dogs indoors with water and fans.
Only the vulnerable ones. July lows average 45.5F, right at the 45F threshold where small, senior, and short-coated dogs benefit from a coat, while July highs near 60F make midday walks comfortable for everyone. The record low is 22F, but frosts like that are rare.
The Rio de la Plata keeps the city humid year round, and humidity impairs a dog's panting-based cooling. That means a January afternoon of 86.2F can stress a dog as much as a hotter dry day, so shorten summer walks, favor shade, and carry water.
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