Buenos Aires Weather in September
Argentina · 30-year monthly averages
👍 Good time to visit
September in Buenos Aires is mild, with average daytime highs around 18°C (65°F) and nighttime lows near 12°C (53°F). Expect roughly 73mm of precipitation spread over about 6 rainy days, with a moderate amount of rain.
Avg high
18°C
65°F
Avg low
12°C
53°F
Rainfall
73mm
moderate
Rainy days
6
days with ≥1mm
☀️ About 197 hours of sunshine over the month (~7h/day).
🎒 What to pack
- light jacket
- layers for cool evenings
September vs the rest of the year
FAQ
- How hot is Buenos Aires in September?
- September in Buenos Aires is mild, with average daytime highs around 18°C (65°F) and nighttime lows near 12°C (53°F). Expect roughly 73mm of precipitation spread over about 6 rainy days, with a moderate amount of rain.
- Does it rain a lot in Buenos Aires in September?
- Buenos Aires sees around 73mm of precipitation in September on average — moderate by global standards.
- Is September a good time to visit Buenos Aires?
- September is a good month to visit Buenos Aires, with generally agreeable conditions.