Buenos Aires weather in August
Buenos Aires in August averages 13°C (56°F), 52 mm of rain and 5.9 hours of sun a day.
Of the twelve months in Buenos Aires, August is the third coldest, the second driest and the fourth dullest.
- Average temp
- 13°C (56°F)
10–17°C · 49–62°F
- Rainfall
- 52 mm
Showers likely
- Sunshine
- 5.9 h
hours per day
What is Buenos Aires like in August?
Daytime
Days are cool.
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 August?
A light rain jacket
About 52 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 10°C (49°F).
August compared with July and September
August in Buenos Aires is 1.8°C warmer than July and about as wet as it, which averages 11°C (53°F).
August in Buenos Aires is 1.3°C cooler than September and about as wet as it, which averages 15°C (58°F).
Daylight in Buenos Aires in August
On 15 August the sun is up for 10 hours 51 minutes in Buenos Aires, rising about 07:32 and setting about 18:23 local time.
August ends 56 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 3 hours 37 minutes short of December, the longest-lit month here.
Where to stay in Buenos Aires
Dates are a starting point for August.
Travel guides for Buenos Aires
What to read before you book.
Buenos Aires weather by month
TemperatureRainfall
How August compares with the rest of the year
August 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 August
August climate averages for Buenos Aires, 1991–2020.
Buenos Aires averages 13°C (56°F) in August, ranging from about 10°C (49°F) at night to 17°C (62°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 52 mm falls across August, enough to need a light jacket but not enough to reshape a trip.
No. August averages 13°C (56°F) against 15°C (58°F) in September — 1.3°C cooler.
August is 1.8°C warmer than July, and about as wet.
It is outside the easiest window. The most comfortable stretch here is February to April; August sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 5.9 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 August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 10 hours 51 minutes of daylight in mid-August, against 14 hours 28 minutes in December and 9 hours 51 minutes in June.
On 15 August, sunrise is about 07:32 and sunset about 18:23 local time. Both shift across the month — the month ends 56 minutes longer than it starts.
