September weather forecastLas Heras, Argentina

September

Weather in September

The first month of the spring, September, is a refreshing month in Las Heras, Argentina, with temperature in the range of an average low of 8.4°C (47.1°F) and an average high of 17.8°C (64°F).

Temperature

Las Heras, Argentina, observes a minor difference in average high-temperatures between August's 15.2°C (59.4°F) and September's 17.8°C (64°F). Throughout the month of September, Las Heras reports a steady low-temperature average of 8.4°C (47.1°F).

Humidity

The average relative humidity in September in Las Heras is 42%.

Rainfall

The months with the least rainfall are June, July and September Rain falls for 3.8 days and accumulates 4mm (0.16") of rain.

Snowfall

Months with snowfall in Las Heras are June through September. September is the last month it regularly snows in Las Heras. During 0.5 snowfall days, in September, Las Heras aggregates 2mm (0.08") of snow. Throughout the year, in Las Heras, there are 1.9 snowfall days, and 21mm (0.83") of snow is accumulated.

Daylight

In September, the average length of the day is 11h and 55min.
On the first day of the month, sunrise is at 07:51 and sunset at 19:18. On the last day of September, in Las Heras, Argentina, sunrise is at 07:12 and sunset at 19:37 -03.

Sunshine

The months with the most sunshine are January, February, August, September, November and December, with an average of 9.7h of sunshine.

UV index

The average daily maximum UV index in September in Las Heras, Argentina, is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

September temperatures vary between a high-temperature of 17.8°C (64°F) and a low-temperature of 8.4°C (47.1°F). In February, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 28°C (82.4°F).

The average relative humidity in September in Las Heras is 42%.

June, July and September are months with the least rain in Las Heras when the rain falls for 3.8 days and typically aggregates up to 4mm (0.16") of rain.

In Las Heras, Argentina, during September, the rain falls for 3.8 days and regularly aggregates up to 4mm (0.16") of precipitation.

September is the last month it regularly snows. During 0.5 snowfall days, in September, Las Heras aggregates 2mm (0.08") of snow.

In Las Heras, Argentina, the average day length in September is 11h and 55min.

In September, on the first day of the month, sunrise is at 07:51 and sunset at 19:18. On the last day of the month, in Las Heras, sunrise is at 07:12 and sunset at 19:37 -03.

The months with the most sunshine are January, February, August, September, November and December, with an average of 9.7h of sunshine.

In September, the average sunshine duration is 9.7h.

The average daily maximum UV index in September in Las Heras is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Las Heras, Argentina

  • Average high temperature in September: 17.8°C

The warmest month (with the highest average high temperature) is January (29.2°C).
The month with the lowest average high temperature is July (11.8°C).

  • Average low temperature in September: 8.4°C

The month with the highest average low temperature is January (19.3°C).
The coldest month (with the lowest average low temperature) is July (3.5°C).

Average pressure in September
Las Heras, Argentina

  • Average pressure in September: 1016.9mbar

The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).

Average wind speed in September
Las Heras, Argentina

  • Average wind speed in September: 11.2km/h

The windiest month (with the highest average wind speed) is November (13km/h).
The calmest months (with the lowest average wind speed) are June and July (7.9km/h).

Average humidity in September
Las Heras, Argentina

  • Average humidity in September: 42%

The month with the highest relative humidity is May (59%).
The months with the lowest relative humidity are November and December (38%).

Average rainfall in September
Las Heras, Argentina

  • Average rainfall in September: 4mm

The wettest month (with the highest rainfall) is January (61mm).
The driest months (with the least rainfall) are June, July and September (4mm).

Average rainfall days in September
Las Heras, Argentina

  • Average rainfall days in September: 3.8 days

The month with the highest number of rainy days is January (14.5 days).
The month with the least rainy days is June (2.5 days).

Average snowfall in September
Las Heras, Argentina

  • Average snowfall in September: 2mm

The month with the highest snowfall is July (12mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).

Average snowfall days in September
Las Heras, Argentina

  • Average snowfall days in September: 0.5 days

The month with the highest number of snowfall days is July (0.8 days).
The months with the least snowfall days are January, February, March, April, May, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Las Heras, Argentina

  • Average daylight in September: 11h and 54min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 42min

The months with the most sunshine are January, February, August, September, November and December (Average sunshine: 9h and 42min).
The month with the least sunshine is May (Average sunshine: 9h and 18min).

Average sunshine days in September
Las Heras, Argentina

  • Average sunshine days in September: 24.3 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is February (12 days).

Average UV index in September
Las Heras, Argentina

  • Average UV index in September: 4

The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 3).

Average cloud cover in September
Las Heras, Argentina

  • Average cloud cover in September: 12

The months with the most cloud cover are April and May (Cloud cover 16).
The months with the least cloud cover are June and August (Cloud cover 11).

Average visibility in September
Las Heras, Argentina

  • Average visibility in September: 10km

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