September weather forecast and climate
Rosario, Argentina

What is the temperature in September in Rosario?

In Rosario, Argentina, in September, the average high-temperature is 20.7°C (69.3°F), and the average low-temperature is 7.6°C (45.7°F).

How much does it rain in Rosario in September?

In Rosario, in September, during 6 rainfall days, typically, 61.6mm (2.4") of precipitation is accumulated.
Average temperature in September - Rosario, Argentina
  • Average high temperature in September: 20.7°C

The warmest month (with the highest average high temperature) is January (30.8°C).
The month with the lowest average high temperature is July (16.4°C).

  • Average low temperature in September: 7.6°C

The month with the highest average low temperature is January (17.7°C).
Coldest months (with the lowest average low temperature) are June and July (5.3°C).

Average humidity in September - Rosario, Argentina
  • Average humidity in September: 74%

Months with the highest relative humidity are May, June and July (82%).
The month with the lowest relative humidity is December (68%).

Average rainfall in September - Rosario, Argentina
  • Average rainfall in September: 61.6mm

The wettest month (with the highest rainfall) is March (164.6mm).
The driest month (with the lowest rainfall) is June (36.6mm).

Average rainfall days in September - Rosario, Argentina
  • Average rainfall days in September: 6 days

Months with the highest number of rainy days are January, March, October, November and December (9 days).
Months with the lowest number of rainy days are June, July and August (5 days).

Average daylight in September / Average sunshine in September - Rosario, Argentina
  • Average daylight in September: 11.9h

The month with the longest days is December (Average daylight: 14.3h).
The month with shortest days is June (Average daylight: 10h).

  • Average sunshine in September: 6.7h

The month with most sunshine is January (Average sunshine: 10.1h).
The month with least sunshine is June (Average sunshine: 5h).

Average UV index in September - Rosario, Argentina
  • Average UV index in September: 6

Months with the highest UV index are January, February and December (UV index 12).
Months with the lowest UV index are June and July (UV index 3).

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