Weather in Buenos Aires in May 2025
Average weather
Average temperature in Buenos Aires in May
The temperature in May is +19°C on average, with a range between a maximum of +24°C during the day and a minimum of +5°C at night.
The average maximum temperature goes down 5% by the end of the month, compared with the beginning of the month, from +19°C to +18°C.
Is Buenos Aires warm or cold in May?
Buenos Aires is typically mild in May.
Maximum temperatures go down compared to the previous month from +21°C to +18°C. The minimum temperature also goes down from +15°C to +12°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Buenos Aires:
Water temperature in Buenos Aires in May
Water in Buenos Aires in May is Fresh. It varies from +14°C to +18°C, with an average of +16°C. This is almost similar to the air temperature, which averages +18°C.
In May, water temperatures are average relative to the rest of the year:
Can you swim in Buenos Aires in May?
Travel to Buenos Aires
Climate in Buenos Aires in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +21°C | +18°C | +15°C | ||||
| Min. temperature | ||||||
| +5°C | +1°C | -2°C | ||||
| Max. temperature | ||||||
| +33°C | +30°C | +26°C | ||||
| Rainfall | ||||||
| 88 mm | 62 mm | 48 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +19°C | +16°C | +13°C | ||||
| Humidity | ||||||
| 75% | 77% | 77% | ||||
| Air pressure | ||||||
| 1015 HPa | 1016 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 12 | 11 | 10 | ||||
| Cloudy days | ||||||
| 7 | 11 | 11 | ||||
| Rainy days | ||||||
| 8 | 7 | 7 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting colder in May. From +21°C in the day, the average maximum temperature lowers to +18°C. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 88 mm to 62 mm. Humidity rises from 75% to 77%. The average wind speed doesn’t change much during May, staying around 3 m/s. The days becoming less sunny, going from 12 sunny days in April to 11 in May.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Buenos Aires is gradually increasing during May, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last May in Buenos Aires?
Climate Change over Years
The climate in Buenos Aires in May has not changed much over the last 43 years.
The average temperature was the lowest in 1983 (+20°C) and the highest in 2017 (+22°C). The driest year was 2008 with only 468 mm of rainfall, and the wettest year was 2014 with 1388 mm.
FAQ
Is May a good time to visit Buenos Aires?
Can you sunbathe in Buenos Aires in May?
Can you swim in Buenos Aires in May?
Is Buenos Aires rainy in May?
Is it sunny in Buenos Aires in May?
How much does it cost to fly to Buenos Aires in May?
Monthly weather in Buenos Aires
Source of the data
For this page, we’ve looked at the typical weather in Buenos Aires, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.