September weather forecastValdivia, Chile
September
Weather in September
The arrival of spring in Valdivia in September brings mild warmth, with temperatures rising to 14.3°C (57.7°F). This result of climate metamorphosis from August lays the path for sunny days and blooming landscapes. The welcomed rise in sunshine hours and a decrease in rainfall symbolizes the commencement of the dry spell. With humidity dropping further, the weather becomes more comfortable. It presents an excellent opportunity for outdoor pursuits and exploration.Temperature
Valdivia greets September with an average high-temperature of a refreshing 14.3°C (57.7°F), marking a slight deviation from the preceding month. An average low-temperature of 5.2°C (41.4°F) is common in Valdivia during the nights of September.Humidity
In Valdivia, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 16 days. Throughout September, 142mm (5.59") of precipitation is accumulated. Throughout the year, in Valdivia, there are 177 rainfall days, and 1788mm (70.39") of precipitation is accumulated.Sea temperature
The months with the coldest seawater in Valdivia, Chile, are July through October, with an average sea temperature of 12°C (53.6°F).Note: It is advised against swimming in 12°C (53.6°F) when it drops below 10°C (50°F). Such temperatures can cause extreme cold shock, leading to hyperventilation.
Daylight
In Valdivia, the average length of the day in September is 11h and 52min.On the first day of September, sunrise is at 07:14 and sunset at 18:30 -04. On the last day of the month, sunrise is at 07:27 and sunset at 19:57 -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 September, the average sunshine in Valdivia, Chile, is 4.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valdivia, Chile
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is February (22.9°C).
The month with the lowest average high temperature is July (10.5°C).
- Average low temperature in September: 5.2°C
The month with the highest average low temperature is January (10.5°C).
The coldest month (with the lowest average low temperature) is August (4.5°C).
Average humidity in September
Valdivia, Chile
- Average humidity in September: 76%
The month with the highest relative humidity is June (89%).
The month with the lowest relative humidity is January (63%).
Average rainfall in September
Valdivia, Chile
- Average rainfall in September: 141.7mm
The wettest month (with the highest rainfall) is June (325.7mm).
The driest month (with the least rainfall) is February (46mm).
Average rainfall days in September
Valdivia, Chile
- Average rainfall days in September: 16 days
The months with the highest number of rainy days are May, June and July (22 days).
The month with the least rainy days is February (7 days).
Average sea temperature in September
Valdivia, Chile
- Average sea temperature in September: 12°C
The best months for swimming (with the highest average sea temperature) are January, February and March (16°C).
The coldest months (with the lowest average sea temperature) are July, August, September and October (12°C).
Average daylight in September /
Average sunshine in September
Valdivia, Chile
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 54min).
The month with the shortest days is June (Average daylight: 9h and 24min).
- Average sunshine in September: 4h and 54min
The months with the most sunshine are January and February (Average sunshine: 9h and 18min).
The month with the least sunshine is June (Average sunshine: 1h and 30min).
Average UV index in September
Valdivia, Chile
- Average UV index in September: 4
The months with the highest UV index are January and December (UV index 11).
The months with the lowest UV index are May, June and July (UV index 2).





