September weather forecast
Rosario, Argentina

Weather in September

The first month of the spring, September, is an agreeable month in Rosario, Argentina, with an average temperature varying between 9.7°C (49.5°F) and 20.6°C (69.1°F).

Temperature

In September, the average high-temperature is almost the same as in August - an agreeable 20.6°C (69.1°F). In September, the average low-temperature is 9.7°C (49.5°F).

Humidity

In Rosario, the average relative humidity in September is 71%.

Rainfall

In Rosario, in September, during 7.5 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Rosario, during the entire year, the rain falls for 89.9 days and collects up to 475mm (18.7") of precipitation.

Daylight

In Rosario, the average length of the day in September is 11h and 55min.
On the first day of the month, sunrise is at 07:19 and sunset at 18:45. On the last day of September, in Rosario, sunrise is at 06:40 and sunset at 19:04 -03.

Sunshine

In September, the average sunshine in Rosario is 8h.

UV index

April through September, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Rosario?

The average high-temperature, in September, in Rosario, is 20.6°C (69.1°F), while the average low-temperature is 9.7°C (49.5°F). in March, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 30°C (86°F).

What is the average humidity in September in Rosario?

The average relative humidity in September in Rosario is 71%.

How many days does it rain in September in Rosario?

In Rosario, Argentina, in September, it is raining for 7.5 days, with typically 34mm (1.34") of accumulated precipitation.

What is the average length of the day in September in Rosario?

In Rosario, the average day length in September is 11h and 55min.

When are sunrise and sunset in September in Rosario?

On the first day of September, sunrise is at 07:19 and sunset at 18:45. On the last day of the month, sunrise is at 06:40 and sunset at 19:04 -03.

How long on average sun shines in September in Rosario?

The average sunshine duration in September in Rosario, Argentina, is 8h.

What is the month with the lowest UV index in Rosario?

The months with the lowest UV index are April through September, with an average maximum UV index of 4.

What is the UV index reading in September in Rosario?

In Rosario, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.

Average temperature in September
Rosario, Argentina

Average temperature in September - Rosario, Argentina
  • Average high temperature in September: 20.6°C

The warmest month (with the highest average high temperature) is January (33.4°C).
The month with the lowest average high temperature is July (15.7°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (7.5°C).

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Average pressure in September
Rosario, Argentina

Average pressure in September - Rosario, Argentina
  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is July (1019mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).

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Average wind speed in September
Rosario, Argentina

Average wind speed in September - Rosario, Argentina
  • Average wind speed in September: 13km/h

The windiest months (with the highest average wind speed) are August and September (13km/h).
The calmest month (with the lowest average wind speed) is March (10.2km/h).

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Average humidity in September
Rosario, Argentina

Average humidity in September - Rosario, Argentina
  • Average humidity in September: 71%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is January (52%).

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Average rainfall in September
Rosario, Argentina

Average rainfall in September - Rosario, Argentina
  • Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is December (72mm).
The driest month (with the least rainfall) is June (16mm).

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Average rainfall days in September
Rosario, Argentina

Average rainfall days in September - Rosario, Argentina
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is October (10 days).
The month with the least rainy days is June (4.8 days).

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Average daylight in September /
Average sunshine in September
Rosario, Argentina

Average daylight in September / Average sunshine in September - Rosario, Argentina
  • Average daylight in September: 11h and 55min

The month with the longest days is December (Average daylight: 14h and 17min).
The month with the shortest days is June (Average daylight: 10h and 1min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is May (Average sunshine: 7h and 24min).

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Average sunshine days in September
Rosario, Argentina

Average sunshine days in September - Rosario, Argentina
  • Average sunshine days in September: 21.4 days

The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is October (19.7 days).

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Average UV index in September
Rosario, Argentina

Average UV index in September - Rosario, Argentina
  • Average UV index in September: 4

The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).

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Average cloud cover in September
Rosario, Argentina

Average cloud cover in September - Rosario, Argentina
  • Average cloud cover in September: 29

The month with the most cloud cover is May (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 17).

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Average visibility in September
Rosario, Argentina

Average visibility in September - Rosario, Argentina
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, June and December (10km).
The months with the lowest visibility are April, May, July, August, September, October and November (9km).

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