September weather forecastEl 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 8h and 42min
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: 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: 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: 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: 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).





