Argentina Buenos Aires Weather in May (Late Autumn) — Climate Guide
May (Late Autumn) in Buenos Aires is high
Buenos Aires Weather in May (Late Autumn) — Quick Answer
As of 2026- Avg temp
- 18° / 11°
- Rainfall
- 90mm · 7 days
- Crowds
- Moderate
As of 2026, Buenos Aires in May (Late Autumn) averages a high of 18°C and low of 11°C with 90mm of rain over about 7 days. Late autumn.
May (Late Autumn) is high for Buenos Aires.
May is the tail of autumn and a good season.
Travel score
Buenos Aires May (Late Autumn) Weather Stats
Avg High
18°C
Avg Low
11°C
Rainy Days
7
90mm total
Sunshine
6h
Daily avg
Humidity
80%
comfortable
UV Index
4
Moderate
Wind
13 km/h
Gusts 26
Sea Temp
0°C
no swimming
Crowds
Moderate
At attractions
May (Late Autumn) Sunrise & Sunset
Air Quality
PM2.5
20 μg/m³
PM10
40 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
18°C
Nighttime
11°C
Humidity and wind affect how the actual temperature feels.
Wind
13 km/h
Max gust 26 km/h
Activities Recommended for May (Late Autumn)
May (Late Autumn) Travel Pros & Cons
Pros
- A pleasant 18/11°C climate
- Moderate crowds
Cons
- Some rain
May (Late Autumn) Events & Festivals
- The tail of autumn
Buenos Aires in May (Late Autumn) — Full Picture
May is the tail of autumn and a good season.
What to Wear & What to Pack
Late autumn.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current22°C
14.3°C
8/mo
Summer (Jun·Jul·Aug)
14.7°C
7.7°C
7/mo
Autumn (Sep·Oct·Nov)
21.7°C
12°C
8.7/mo
Winter (Dec·Jan·Feb)
29°C
20°C
8.3/mo
Buenos Aires Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Summer · Best) (Best) | 30° | 21° | 9d·120mm | 9h | 70% | 11 | Very busy | Peak |
| February (Summer) (Best) | 29° | 20° | 8d·110mm | 9h | 70% | 11 | Very busy | Peak |
| 26° | 18° | 9d·130mm | 8h | 75% | 9 | Busy | Peak | |
| April (Autumn · Best) (Best) | 22° | 14° | 8d·100mm | 7h | 75% | 6 | Busy | Peak |
| May (Late Autumn) (Best) | 18° | 11° | 7d·90mm | 6h | 80% | 4 | Moderate | Shoulder |
| 14° | 8° | 7d·60mm | 5h | 80% | 3 | Quiet | Low season | |
| 14° | 7° | 7d·60mm | 5h | 80% | 3 | Quiet | Low season | |
| 16° | 8° | 7d·70mm | 6h | 75% | 5 | Busy | Peak | |
| 18° | 9° | 8d·80mm | 7h | 70% | 7 | Busy | Peak | |
| October (Spring · Top Pick) (Best) | 22° | 12° | 9d·100mm | 8h | 70% | 9 | Very busy | Peak |
| 25° | 15° | 9d·110mm | 9h | 70% | 11 | Very busy | Peak | |
| 28° | 19° | 8d·100mm | 9h | 70% | 11 | Very busy | Peak |
View Other Months
Buenos Aires May (Late Autumn) Hotel Picks
Frequently Asked Questions
Is May (Late Autumn) a good time to visit Buenos Aires?
Buenos Aires in May (Late Autumn) is high. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Buenos Aires in May (Late Autumn)?
Buenos Aires May (Late Autumn) averages a high of 18°C and a low of 11°C.
Does it rain much in Buenos Aires in May (Late Autumn)?
Buenos Aires May (Late Autumn) averages 90mm of rainfall over about 7 rainy days.
What should I wear in Buenos Aires in May (Late Autumn)?
Late autumn.
What time are sunrise and sunset in Buenos Aires in May (Late Autumn)?
Buenos Aires May (Late Autumn) sunrise is 07:50 and sunset is 18:00, with 10h 10min of daylight.
What's the air quality like in Buenos Aires in May (Late Autumn)?
Buenos Aires May (Late Autumn) air quality (AQI) averages 50, rated Good. PM2.5 averages 20μg/m³.
What activities are recommended in Buenos Aires in May (Late Autumn)?
In May (Late Autumn), Buenos Aires is great for Tango, Recoleta, Mendoza.
Is May (Late Autumn) peak season in Buenos Aires?
Buenos Aires May (Late Autumn) crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Buenos Aires
View Other Months
Planning a May (Late Autumn) trip to Buenos Aires?
You've checked the weather — next come the budget and the route.
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.