Transit Desk

Climate

Weather in Argentina in September

Weather in Argentina, September
In September, Argentina sees average highs of 18.6°C (65°F) and lows of 11.3°C (52°F), with around 70 mm of rain.

Argentina — September

Argentina September
Daytime high
18.6°C (65°F)
Overnight low
11.3°C (52°F)
Rainfall
70 mm
Best-time rank
Off-peak

How September compares

Argentina, September vs. the annual average (2025)
This month18.6°C (65°F) / 11.3°C (52°F) · 70 mm
Yearly average21.6°C (71°F) / 14.4°C (58°F) · 83 mm

September in Argentina runs 3°C (5.4°F) cooler than the yearly average, and is drier than the yearly average. Pack a warm jacket for cooler conditions.

Common questions

What is the weather like in Argentina in September?

Average highs of 18.6°C (65°F) and lows of 11.3°C (52°F), with around 70 mm of rain.

Is September a good time to visit Argentina?

It is an off-peak month for comfort in Argentina; October, November, December tend to be more pleasant.

Updated climate normals, 2025