September weather forecastChillán, Chile
September
Weather in September
As spring finally arrives in September, Chillán starts experiencing increasing temperatures and substantially fewer rainfall days. From a climatological perspective, it presents some of the most comfortable conditions of the year. Days gradually become longer, and the city is replenished with sunlight. These factors contribute to a rise in outdoor activities and tourism within and around the city. Consequently, September in Chillán marks the return of more vibrant outdoor life in the city's streets and parks.Temperature
The shift from August to September in Chillán is characterized by an average high-temperature of a still refreshing 17.2°C (63°F), not significantly different from the 14.3°C (57.7°F) of August. Chillán registers a consistent average low-temperature of 5.6°C (42.1°F) during September.Humidity
The average relative humidity in September in Chillán is 74%.Rainfall
In September, in Chillán, the rain falls for 9.4 days. Throughout September, 58mm (2.28") of precipitation is accumulated. Throughout the year, there are 88.3 rainfall days, and 706mm (27.8") of precipitation is accumulated.Daylight
In Chillán, the average length of the day in September is 11h and 53min.On the first day of September in Chillán, sunrise is at 07:07 and sunset at 18:28 -04. On the last day of the month, sunrise is at 07:24 and sunset at 19:51 -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
The average sunshine in September is 7.8h.UV index
The months with the lowest UV index are May through July and September, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, an average UV index of 3 transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chillán, Chile
- Average high temperature in September: 17.2°C
The warmest month (with the highest average high temperature) is January (30.9°C).
The month with the lowest average high temperature is July (12.4°C).
- Average low temperature in September: 5.6°C
The month with the highest average low temperature is January (13.4°C).
The coldest month (with the lowest average low temperature) is July (4.7°C).
Average pressure in September
Chillán, Chile
- Average pressure in September: 1019.7mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed in September
Chillán, Chile
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is January (12.5km/h).
The calmest month (with the lowest average wind speed) is May (9.5km/h).
Average humidity in September
Chillán, Chile
- Average humidity in September: 74%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (50%).
Average rainfall in September
Chillán, Chile
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is June (178mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days in September
Chillán, Chile
- Average rainfall days in September: 9.4 days
The months with the highest number of rainy days are July and August (13.7 days).
The month with the least rainy days is January (1.8 days).
Average daylight in September /
Average sunshine in September
Chillán, Chile
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is January (Average sunshine: 11h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).
Average sunshine days in September
Chillán, Chile
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is July (16.5 days).
Average UV index in September
Chillán, Chile
- Average UV index in September: 3
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are May, June, July and September (UV index 3).
Average cloud cover in September
Chillán, Chile
- Average cloud cover in September: 33
The months with the most cloud cover are June, July and August (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 8).
Average visibility in September
Chillán, Chile
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
