Verdict: Excellent month
Buenos Aires Weather in May
May is mild-to-cool in Buenos Aires, topping out near 17°C (63°F) — comfortable with a layer on. Rain is occasional — about 4 wet days in a typical year. Overall, May is one of the best months of the year to be in Buenos Aires.
Average high
17°C / 63°F
Average low
10°C / 50°F
Rain days
~4
Precipitation
48 mm
What to pack for Buenos Aires in May
- Layers — t-shirts under a light jacket or sweater
- Comfortable walking shoes — every guide on this site assumes you'll use them
May against the rest of the year
Warmest in Buenos Aires: Jan (29°C / 84°F) · Coolest: Jul (14°C / 57°F) · Wettest: Mar (~9 rain days)
29°
21°
Jan
28°
20°
Feb
26°
19°
Mar
21°
15°
Apr
17°
10°
May
15°
8°
Jun
14°
7°
Jul
16°
9°
Aug
18°
11°
Sep
21°
13°
Oct
25°
17°
Nov
27°
19°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)