Buenos Aires weather in October
Buenos Aires in October averages 18°C (64°F), 98 mm of rain and 6.9 hours of sun a day.
Of the twelve months in Buenos Aires, October is the sixth coldest, the fifth wettest and the sixth sunniest.
- Average temp
- 18°C (64°F)
14–22°C · 58–71°F
- Rainfall
- 98 mm
Showers likely
- Sunshine
- 6.9 h
hours per day
What is Buenos Aires like in October?
Daytime
Days are mild.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Buenos Aires in October?
A light rain jacket
About 98 mm falls this month — showers rather than washouts.
A layer for the evening
Evenings cool off noticeably once the sun is down.
October compared with September and November
October in Buenos Aires is 3.4°C warmer than September and 40 mm wetter than it, which averages 15°C (58°F).
October in Buenos Aires is 2.7°C cooler than November and 11 mm wetter than it, which averages 21°C (69°F).
Daylight in Buenos Aires in October
On 15 October the sun is up for 12 hours 58 minutes in Buenos Aires, rising about 06:10 and setting about 19:08 local time.
October ends 1 hour 2 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 1 hour 30 minutes short of December, the longest-lit month here.
Where to stay in Buenos Aires
Dates are a starting point for October.
Travel guides for Buenos Aires
What to read before you book.
Buenos Aires weather by month
TemperatureRainfall
How October compares with the rest of the year
October is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 25°C / 76°F | 135 mm |
| February | 23°C / 74°F | 94 mm |
| March | 22°C / 72°F | 123 mm |
| April | 18°C / 65°F | 122 mm |
| May | 15°C / 60°F | 85 mm |
| June | 12°C / 54°F | 54 mm |
| July | 11°C / 53°F | 50 mm |
| August | 13°C / 56°F | 52 mm |
| September | 15°C / 58°F | 58 mm |
| October | 18°C / 64°F | 98 mm |
| November | 21°C / 69°F | 87 mm |
| December | 23°C / 74°F | 107 mm |
Check another month
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FAQs about Buenos Aires in October
October climate averages for Buenos Aires, 1991–2020.
Buenos Aires averages 18°C (64°F) in October, ranging from about 14°C (58°F) at night to 22°C (71°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 98 mm falls across October, enough to need a light jacket but not enough to reshape a trip.
No. October averages 18°C (64°F) against 21°C (69°F) in November — 2.7°C cooler.
October is 3.4°C warmer than September, and 40 mm wetter.
It is outside the easiest window. The most comfortable stretch here is February to April; October sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 6.9 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what October is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 58 minutes of daylight in mid-October, against 14 hours 28 minutes in December and 9 hours 51 minutes in June.
On 15 October, sunrise is about 06:10 and sunset about 19:08 local time. Both shift across the month — the month ends 1 hour 2 minutes longer than it starts.
