Buenos Aires Weather
A month-by-month look at temperature, rainfall and what to pack in Buenos Aires. The annual average is 22°C high / 14°C low — hottest in January (Summer · Best) (30°C) and coldest in July (Winter · Value) (7°C).
Buenos Aires Weather at a Glance
As of 2026A quick summary of Buenos Aires's year-round climate and the best time to visit.
- Annual average
- 22° / 14°
- Best time to visit
- March (Early Autumn · Top Pick), April (Autumn · Best), October (Spring · Top Pick)
- Hottest month
- January (Summer · Best) (30°C)
- Coldest month
- July (Winter · Value) (7°C)
- Wettest month
- March (Early Autumn · Top Pick) (130mm)
- Driest month
- June (Early Winter · Value) (60mm)
As of 2026, Buenos Aires's weather averages 22°C high / 14°C low across the year, and the best time to visit for stable temperatures, rainfall and crowds is March (Early Autumn · Top Pick), April (Autumn · Best), October (Spring · Top Pick). The hottest month is January (Summer · Best) (30°C), the coldest is July (Winter · Value) (7°C), and the wettest is March (Early Autumn · Top Pick) (130mm).
Best Time to Visit Buenos Aires
March is a top season — comfortable weather and a lively city.
April is a top season — mild, clear, and comfortable.
October is a top season — comfortable and clear.
Buenos Aires Weather Month by Month
Tap any month for a detailed guide with what to wear, sunrise/sunset and air quality.
| Month | High/Low | Rain | Rainy days | Crowds | |
|---|---|---|---|---|---|
| January (Summer · Best) | 30° / 21° | 120mm | 9 | Very busy | Details → |
| February (Summer) | 29° / 20° | 110mm | 8 | Very busy | Details → |
| March (Early Autumn · Top Pick) | 26° / 18° | 130mm | 9 | Busy | Details → |
| April (Autumn · Best) | 22° / 14° | 100mm | 8 | Busy | Details → |
| May (Late Autumn) | 18° / 11° | 90mm | 7 | Moderate | Details → |
| June (Early Winter · Value) | 14° / 8° | 60mm | 7 | Quiet | Details → |
| July (Winter · Value) | 14° / 7° | 60mm | 7 | Quiet | Details → |
| August (Tango BA Festival · Best) | 16° / 8° | 70mm | 7 | Busy | Details → |
| September (Early Spring · Top Pick) | 18° / 9° | 80mm | 8 | Busy | Details → |
| October (Spring · Top Pick) | 22° / 12° | 100mm | 9 | Very busy | Details → |
| November (Late Spring · Polo Open) | 25° / 15° | 110mm | 9 | Very busy | Details → |
| December (Early Summer · New Year) | 28° / 19° | 100mm | 8 | Very busy | Details → |
What to Wear in Buenos Aires by Season
Autumn. Short sleeves plus a jacket.
Winter. Bring a jacket.
Spring. Short sleeves plus a jacket.
Summer.
Buenos Aires Weather FAQ
What is the best time to visit Buenos Aires? +
For weather, March (Early Autumn · Top Pick), April (Autumn · Best), October (Spring · Top Pick) are the most comfortable months. Highs sit around 26°C with relatively stable rainfall and crowds.
What are the hottest and coldest months in Buenos Aires? +
The hottest month is January (Summer · Best) with an average high of 30°C, and the coldest is July (Winter · Value) with an average low of 7°C. The annual average is 22°C high / 14°C low.
When does it rain most in Buenos Aires? +
The wettest month is March (Early Autumn · Top Pick) (130mm over about 9 rainy days) and the driest is June (Early Winter · Value) (60mm). Total annual rainfall is roughly 1130mm.
What should I pack for Buenos Aires? +
Spring (Mar–May) averages 22/14°C — Autumn. Short sleeves plus a jacket. Summer (Jun–Aug) averages 15/8°C — Winter. Bring a jacket. Autumn (Sep–Nov) averages 22/12°C — Spring. Short sleeves plus a jacket. Winter (Dec–Feb) averages 29/20°C — Summer.
What is the weather in Buenos Aires this month (June (Early Winter · Value))? +
June (Early Winter · Value) averages 14°C high / 8°C low with 60mm rainfall over about 7 rainy days. Crowds are quiet and prices are low.
Keep Planning Your Buenos Aires Trip
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.