September weather forecast
El Retiro, Chile

September

Weather in September

September, the first month of the spring in El Retiro, is still a comfortable month, with an average temperature varying between 18.1°C (64.6°F) and 8°C (46.4°F).

Temperature

El Retiro experiences a recorded average high-temperature of a still refreshing 18.1°C (64.6°F) in September, closely aligned with August's 17°C (62.6°F). In the month of September, El Retiro experiences an average low-temperature of 8°C (46.4°F).

Humidity

The months with the highest humidity are July through September, with an average relative humidity of 71%.

Rainfall

In El Retiro, in September, it is raining for 4.3 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, there are 37.1 rainfall days, and 182mm (7.17") of precipitation is accumulated.

Daylight

In September, the average length of the day is 11h and 55min.
On the first day of September in El Retiro, sunrise is at 07:02 and sunset at 18:28 -04. On the last day of the month, sunrise is at 07:23 and sunset at 19:47 -03.
Note: On Sunday, 08. September 2024, at 00:00, Daylight Saving Time starts, and the time zone changes from -04 to -03. Daylight Saving Time lasts until Sunday, 06. April 2025, at 00:00; consequently, the time zone reverts from -03 to -04.

Sunshine

In El Retiro, the average sunshine in September is 8.7h.

UV index

In El Retiro, Chile, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

What are the temperatures in El Retiro in September?
The average high-temperature, in September, in El Retiro, is 18.1°C (64.6°F), while the average low-temperature is 8°C (46.4°F).
What are the most humid months in El Retiro?
July through September, with an average relative humidity of 71%, are most humid months.
What is the average humidity in September in El Retiro?
The average relative humidity in September in El Retiro, Chile, is 71%.
How many days does it rain in September in El Retiro?
In El Retiro, Chile, in September, it is raining for 4.3 days, with typically 17mm (0.67") of accumulated precipitation.
What is the average length of the day in September in El Retiro?
In September, the average day length in El Retiro, Chile, is 11h and 55min.
When are sunrise and sunset in September in El Retiro?
In September, on the first day of the month, sunrise is at 07:02 and sunset at 18:28 -04. On the last day of the month, sunrise is at 07:23 and sunset at 19:47 -03.
When does Daylight Saving Time (DST) start in September in El Retiro?
On Sunday, 08. September 2024, at 00:00, Daylight Saving Time starts in El Retiro, and the time zone changes from -04 to -03. DST ends on Sunday, 06. April 2025, at 00:00.
How long on average sun shines in September in El Retiro?
In El Retiro, Chile, the average sunshine duration in September is 8.7h.
What is the UV index intensity in September in El Retiro?
In El Retiro, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - El Retiro, Chile
Average temperature in September
El Retiro, Chile
  • Average high temperature in September: 18.1°C

The warmest months (with the highest average high temperature) are January and February (24.5°C).
The month with the lowest average high temperature is July (15.6°C).

  • Average low temperature in September: 8°C

The month with the highest average low temperature is January (14.4°C).
The coldest month (with the lowest average low temperature) is July (7.8°C).

Average pressure in September - El Retiro, Chile
Average pressure in September
El Retiro, Chile
  • Average pressure in September: 1019.1mbar

The month with the highest atmospheric pressure is July (1019.6mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).

Average wind speed in September - El Retiro, Chile
Average wind speed in September
El Retiro, Chile
  • Average wind speed in September: 10.5km/h

The windiest month (with the highest average wind speed) is November (11.7km/h).
The calmest month (with the lowest average wind speed) is May (8.8km/h).

Average humidity in September - El Retiro, Chile
Average humidity in September
El Retiro, Chile
  • Average humidity in September: 71%

The months with the highest relative humidity are July, August and September (71%).
The month with the lowest relative humidity is April (64%).

Average rainfall in September - El Retiro, Chile
Average rainfall in September
El Retiro, Chile
  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is June (69mm).
The driest months (with the least rainfall) are January, February, March and November (1mm).

Average rainfall days in September - El Retiro, Chile
Average rainfall days in September
El Retiro, Chile
  • Average rainfall days in September: 4.3 days

The month with the highest number of rainy days is June (6.5 days).
The month with the least rainy days is February (0.3 days).

Average daylight in September / Average sunshine in September - El Retiro, Chile
Average daylight in September /
Average sunshine in September
El Retiro, Chile
  • Average daylight in September: 11h and 5min

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: 8h and 4min

The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 8h and 6min).

Average sunshine days in September - El Retiro, Chile
Average sunshine days in September
El Retiro, Chile
  • Average sunshine days in September: 23.6 days

The month with the most sunshine days is March (29.5 days).
The month with the least sunshine days is June (22.9 days).

Average UV index in September - El Retiro, Chile
Average UV index in September
El Retiro, Chile
  • Average UV index in September: 4

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

Average cloud cover in September - El Retiro, Chile
Average cloud cover in September
El Retiro, Chile
  • Average cloud cover in September: 24

The month with the most cloud cover is June (Cloud cover 27).
The month with the least cloud cover is February (Cloud cover 6).

Average visibility in September - El Retiro, Chile
Average visibility in September
El Retiro, Chile
  • Average visibility in September: 9km

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

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