Buenos Aires Weather in October
October in Buenos Aires averages 23°C (73°F) during the day and 12°C (54°F) at night. It is the wettest month of the year, with 111 mm (4.4 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Buenos Aires in October
With frequent rain showers this month, having an umbrella on hand will keep you dry. You can typically expect 10 days of rain this month, averaging around 111 mm (4.4 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Buenos Aires in October
Daytime temperatures in Buenos Aires reach 23°C (73°F) in October, dropping to 12°C (54°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Buenos Aires in October
With approximately 226 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Wind Speed in Buenos Aires in October
October sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.
Average water temperature in October
The water is 14°C (57°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.If you prefer enjoying temperate temperatures and rain-free days, March, April, May, September, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Buenos Aires's climate page.
Buenos Aires Temperature in October
Min Temperature
12°C (54°F)
Max Temperature
23°C (73°F)
Water Temperature
14°C (57°F)
Chance of Rain
32%
Precipitation
111 mm (4.4 in)
Rainy days
10 days
Humidity
69%
Windspeed
4 m/s (8 knots)
Sunshine
226 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Buenos Aires typically rise from around 20°C (68°F) at the start of October to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 13°C (55°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Buenos Aires in October
Browse day-by-day weather records for Buenos Aires spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Buenos Aires historical weather extremes in October
Based on weather observations in Buenos Aires between 1976 and 2025, these are the recorded extremes during October.
- The warmest day in October was on October 27, 2021, with a maximum of 35°C (95°F).
- On October 15, 2019, Buenos Aires saw its coldest October day with temperatures maxing out at 12°C (54°F).
- The coldest night in October in Buenos Aires was on October 3, 1999, with a minimum of 0°C (32°F).
Best Places in Argentina in October
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in October →
perfect weather
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What to Wear in Buenos Aires in October
For Buenos Aires in October, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Buenos Aires in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Buenos Aires's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Buenos Aires climate overview or explore weather in Argentina.
