September weather forecast
Salta, Argentina

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Rocks formed in Salta, Argentina with a mountain and dark clouds in the background
Rocks formed in Salta, Argentina with a mountain and dark clouds in the background

Weather in September

In September, Salta’s weather life circles back to the onset of rainfall abundance, paving the way for the late wet season. An increase in rainy days, daylight hours and temperature becomes increasingly observable. The rising trend of the wind gusts intrigues with a speed of 12.9km/h (8mph). October bears the indication of further accumulation of rain, more extensive cloud cover, and withdrawal of longer sunlight hours.

Temperature

As September unfolds, the average high-temperature reaches an agreeable 21°C (69.8°F), hinting at a slight fluctuation from the previous month. Salta, in the month of September, anticipates a consistent average low-temperature of 9.2°C (48.6°F).

Humidity

In September, the average relative humidity in Salta is 52%.

Rainfall

In Salta, during September, the rain falls for 5.2 days and regularly aggregates up to 12mm (0.47") of precipitation. Throughout the year, in Salta, Argentina, there are 160.6 rainfall days, and 541mm (21.3") of precipitation is accumulated.

Snowfall

In Salta, snow does not fall in January through June, August through December.

Daylight

In Salta, the average length of the day in September is 11h and 58min.
On the first day of the month, sunrise is at 07:32 and sunset at 19:10. On the last day of September, in Salta, sunrise is at 07:01 and sunset at 19:21 -03.

Sunshine

The average sunshine in September is 9.8h.

UV index

The months with the highest UV index in Salta are January through March, September through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What is the average September temperature in Salta?

The high-temperature, in September, in Salta, is 21°C (69.8°F), while the low-temperature averages to 9.2°C (48.6°F).

What is the average humidity in September in Salta?

The average relative humidity in September in Salta, Argentina, is 52%.

How many days does it rain in September in Salta?

In Salta, in September, during 5.2 rainfall days, 12mm (0.47") of precipitation is typically accumulated.

When it does not snow in Salta?

January through June, August through December are months without snowfall in Salta, Argentina.

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

In September, the average day length in Salta, Argentina, is 11h and 58min.

What time are sunrise and sunset in September in Salta?

In September, on the first day of the month, sunrise is at 07:32 and sunset at 19:10. On the last day of the month, sunrise is at 07:01 and sunset at 19:21 -03.

How long on average sun shines in September in Salta?

In Salta, Argentina, the average sunshine duration in September is 9.8h.

What is the month with the highest UV index in Salta?

January through March, September through December, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in September in Salta?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Salta, Argentina

Average temperature in September - Salta, Argentina
  • Average high temperature in September: 21°C

The warmest month (with the highest average high temperature) is December (24.3°C).
The month with the lowest average high temperature is July (16.5°C).

  • Average low temperature in September: 9.2°C

The month with the highest average low temperature is December (14.8°C).
The coldest month (with the lowest average low temperature) is July (5.7°C).

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Average pressure in September
Salta, Argentina

Average pressure in September - Salta, Argentina
  • Average pressure in September: 1015.7mbar

The month with the highest atmospheric pressure is July (1018.2mbar).
The month with the lowest atmospheric pressure is December (1010.9mbar).

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Average wind speed in September
Salta, Argentina

Average wind speed in September - Salta, Argentina
  • Average wind speed in September: 9.3km/h

The windiest month (with the highest average wind speed) is October (9.6km/h).
The calmest month (with the lowest average wind speed) is April (7.3km/h).

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Average humidity in September
Salta, Argentina

Average humidity in September - Salta, Argentina
  • Average humidity in September: 52%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in September
Salta, Argentina

Average rainfall in September - Salta, Argentina
  • Average rainfall in September: 12mm

The wettest month (with the highest rainfall) is January (105mm).
The driest months (with the least rainfall) are July and August (2mm).

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Average rainfall days in September
Salta, Argentina

Average rainfall days in September - Salta, Argentina
  • Average rainfall days in September: 5.2 days

The month with the highest number of rainy days is March (22 days).
The month with the least rainy days is August (1.9 days).

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Average snowfall in September
Salta, Argentina

Average snowfall in September - Salta, Argentina
  • Average snowfall in September: 0mm

The month with the highest snowfall is July (3mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).

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Average snowfall days in September
Salta, Argentina

Average snowfall days in September - Salta, Argentina
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is July (0.3 days).
The months with the least snowfall days are January, February, March, April, May, June, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Salta, Argentina
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 36min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is March (Average sunshine: 8h and 18min).

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Average sunshine days in September
Salta, Argentina

Average sunshine days in September - Salta, Argentina
  • Average sunshine days in September: 20.3 days

The month with the most sunshine days is August (27.5 days).
The month with the least sunshine days is February (5.5 days).

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Average UV index in September
Salta, Argentina

Average UV index in September - Salta, Argentina
  • Average UV index in September: 5

The months with the highest UV index are January, February, March, September, October, November and December (UV index 5).
The month with the lowest UV index is May (UV index 3).

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Average cloud cover in September
Salta, Argentina

Average cloud cover in September - Salta, Argentina
  • Average cloud cover in September: 10

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in September
Salta, Argentina

Average visibility in September - Salta, Argentina
  • Average visibility in September: 10km

The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are March and April (8km).

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Salta, Argentina

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