Buenos Aires, Argentina skyline

Buenos Aires Weather in August

What August is usually like in Buenos Aires, Argentina — from 2006–2025 averages.

Expect Buenos Aires to reach about 15.6°C (60.1°F) by day and 8.7°C (47.7°F) at night in August, with 6 rainy days bringing 62 mm and around 8.2 hours of sunshine each day.

Avg high

15.6°C (60.1°F)

Avg low

8.7°C (47.7°F)

Rainfall

62 mm (2.5 in)

Rainy days

6 days

Sunshine

8.2 h / day

Humidity

76%

August vs the rest of the year

August is warmer than 2 of the other 11 months, and the 2nd driest month in Buenos Aires.

MonthAvg highvs AugustRainRainy days
January28.3°C (82.9°F)+12.7°C (+22.9°F)78 mm8
February27.3°C (81.1°F)+11.7°C (+21.1°F)111 mm8
March24.6°C (76.3°F)+9°C (+16.2°F)132 mm8
April21.3°C (70.3°F)+5.7°C (+10.3°F)91 mm7
May17.3°C (63.1°F)+1.7°C (+3.1°F)74 mm6
June14.4°C (57.9°F)−1.2°C (−2.2°F)49 mm6
July13.8°C (56.8°F)−1.8°C (−3.2°F)66 mm7
August15.6°C (60.1°F)—62 mm6
September17.9°C (64.2°F)+2.3°C (+4.1°F)80 mm7
October20.8°C (69.4°F)+5.2°C (+9.4°F)102 mm9
November24.4°C (75.9°F)+8.8°C (+15.8°F)91 mm8
December27.2°C (81°F)+11.6°C (+20.9°F)77 mm8

What August feels like in Buenos Aires

In Buenos Aires, August brings late winter (Buenos Aires is in the southern hemisphere, so the seasons run opposite to Europe and North America). Afternoons are cool, pleasant for walking as long as you keep a layer on. Little changes after sunset — nights are cool, only slightly below the daytime level. Moisture in the air gives the cold a damp edge.

Rain in Buenos Aires in August

Rain turns up now and then — about one day in 5. Rain tends to come in heavy bursts: about 10.4 mm (0.4 in) on an average rainy day. That is close to Buenos Aires's typical rain per wet day for the whole year (about 11.5 mm). It is among the three driest months of the year.

Daylight and sunshine in August

On 15 August the sun rises at about 7:35 am and sets around 6:22 pm local time, giving 10 h 47 min of daylight. Days are getting longer: 46 min more daylight than in mid-July. Measured sunshine covers about 76% of the daylight — there are plenty of bright spells.

How August compares to the rest of the year

Ranked by average high, August comes out as the 3rd coolest month in Buenos Aires. Compared with July, afternoons are 1.8°C (3.2°F) warmer, with 4 mm less rain. The warm-up continues into September. The next month's average high: 17.9°C (64.2°F).

Who August suits

  • Sightseeing: a good fit — daytime temperatures are fine for walking around.
  • Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
  • Beach: less ideal — the sea air is too cool.

Tips for visiting Buenos Aires in August

Rain Protection

A packable rain jacket saves the day on showery afternoons.

Light Jacket

A light jacket or knit layer is enough for most of the day.

Sunglasses

Bright days make sunglasses worth packing.

Quick questions

How warm is Buenos Aires in August?

Expect around 15.6°C (60.1°F) in the afternoon and 8.7°C (47.7°F) at night, which most visitors would call cool.

Does it rain a lot in Buenos Aires in August?

Only moderately: roughly 6 wet days and 62 mm, usually moderate rain.

What should I wear in Buenos Aires in August?

Based on the averages: rain protection, a light jacket and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.

Is August or September better for visiting Buenos Aires?

August, clearly: it ranks #5 of 12 among Buenos Aires's months, against #8 for the other. September is warmer and has more rainy days.

Is August a good time to visit Buenos Aires?

Good

Good — mild but cool days, some rainy days (about 6), plenty of sunshine (8.2 h a day). Within Buenos Aires's own year, August ranks #5 of 12.

Warmer or drier places in August

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Buenos Aires weather by month.