September weather forecastSan Esteban, Chile
September
Weather in September
September, the first month of the spring in San Esteban, is still a cool month, with an average temperature varying between 12.7°C (54.9°F) and 1.4°C (34.5°F).Temperature
The shift from August to September is characterized by an average high-temperature of a still cool 12.7°C (54.9°F), not significantly different from the 11.3°C (52.3°F) of August. San Esteban experiences a mean temperature of 1.4°C (34.5°F) during September nights.Humidity
In September, the average relative humidity is 56%.Rainfall
In San Esteban, in September, it is raining for 6.2 days, with typically 16mm (0.63") of accumulated precipitation. Throughout the year, in San Esteban, there are 49.7 rainfall days, and 184mm (7.24") of precipitation is accumulated.Snowfall
In San Esteban, Chile, snow does not fall in January through June, August through December.Daylight
In San Esteban, the average length of the day in September is 11h and 55min.On the first day of September in San Esteban, Chile, sunrise is at 06:58 and sunset at 18:25 -04. On the last day of the month, sunrise is at 07:19 and sunset at 19:44 -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 San Esteban, the average sunshine in September is 9h.UV index
July and September, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 2 transforms into these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
San Esteban, Chile
- Average high temperature in September: 12.7°C
The warmest month (with the highest average high temperature) is January (23.3°C).
The month with the lowest average high temperature is July (9.2°C).
- Average low temperature in September: 1.4°C
The month with the highest average low temperature is January (10.8°C).
The coldest month (with the lowest average low temperature) is July (-0.3°C).
Average pressure in September
San Esteban, Chile
- Average pressure in September: 1018.9mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).
Average wind speed in September
San Esteban, Chile
- Average wind speed in September: 8.1km/h
The windiest month (with the highest average wind speed) is June (8.8km/h).
The calmest months (with the lowest average wind speed) are April and May (6.9km/h).
Average humidity in September
San Esteban, Chile
- Average humidity in September: 56%
The month with the highest relative humidity is July (57%).
The month with the lowest relative humidity is April (39%).
Average rainfall in September
San Esteban, Chile
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is June (62mm).
The driest month (with the least rainfall) is March (1mm).
Average rainfall days in September
San Esteban, Chile
- Average rainfall days in September: 6.2 days
The month with the highest number of rainy days is June (7.3 days).
The month with the least rainy days is March (1.3 days).
Average snowfall in September
San Esteban, Chile
- Average snowfall in September: 0mm
The month with the highest snowfall is July (7mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days in September
San Esteban, Chile
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is July (0.5 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
San Esteban, 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: 9h and 0min
The month with the most sunshine is February (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 8h and 24min).
Average sunshine days in September
San Esteban, Chile
- Average sunshine days in September: 23 days
The month with the most sunshine days is March (29.4 days).
The month with the least sunshine days is June (22.5 days).
Average UV index in September
San Esteban, Chile
- Average UV index in September: 2
The months with the highest UV index are January, February and December (UV index 5).
The months with the lowest UV index are July and September (UV index 2).
Average cloud cover in September
San Esteban, Chile
- Average cloud cover in September: 20
The month with the most cloud cover is June (Cloud cover 24).
The month with the least cloud cover is February (Cloud cover 3).
Average visibility in September
San Esteban, Chile
- 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).





