Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As Viña del Mar steps into September, the average high-temperature is measured at a still refreshing 17.3°C (63.1°F), displaying minor differences from August's 16.7°C (62.1°F). Viña del Mar throughout September, experiences an average nighttime temperature of 8.7°C (47.7°F).Humidity
The months with the highest humidity in Viña del Mar are July through September, with an average relative humidity of 72%.Rainfall
In Viña del Mar, Chile, during September, the rain falls for 4.2 days and regularly aggregates up to 15mm (0.59") of precipitation. In Viña del Mar, during the entire year, the rain falls for 33.7 days and collects up to 178mm (7.01") of precipitation.Sea temperature
In Viña del Mar, the average seawater temperature in September is 13.2°C (55.8°F).Note: One needs to be cautious in 13.2°C (55.8°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
In September, the average length of the day is 11h and 55min.On the first day of September, sunrise is at 07:02 and sunset at 18:29 -04. On the last day of the month, sunrise is at 07:23 and sunset at 19:48 -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 8.6h.UV index
May through October, with an average maximum UV index of 4, are months with the lowest UV index in Viña del Mar. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What are the temperatures in Viña del Mar in September?
What is the most humid month in Viña del Mar?
What is the average humidity in September in Viña del Mar?
How much does it rain in Viña del Mar in September?
What is the sea water temperature in September in Viña del Mar?
What is the average length of the day in September in Viña del Mar?
What time are sunrise and sunset in September in Viña del Mar?
When does Daylight Saving Time (DST) start in September in Viña del Mar?
How many hours of sunshine does Viña del Mar have in September?
When is the lowest UV index in Viña del Mar?
What is the UV index reading in September in Viña del Mar?
Average temperature in September
Viña del Mar, Chile
- Average high temperature in September: 17.3°C
The warmest months (with the highest average high temperature) are January and February (23.3°C).
The month with the lowest average high temperature is July (15.4°C).
- Average low temperature in September: 8.7°C
The month with the highest average low temperature is January (14.7°C).
The coldest month (with the lowest average low temperature) is July (8.3°C).
Average pressure in September
Viña del Mar, Chile
- Average pressure in September: 1019.1mbar
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
Viña del Mar, Chile
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is November (13.6km/h).
The calmest month (with the lowest average wind speed) is May (10.3km/h).
Average humidity in September
Viña del Mar, Chile
- Average humidity in September: 72%
The months with the highest relative humidity are July, August and September (72%).
The month with the lowest relative humidity is April (66%).
Average rainfall in September
Viña del Mar, Chile
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is June (71mm).
The driest months (with the least rainfall) are January and February (0mm).
Average rainfall days in September
Viña del Mar, Chile
- Average rainfall days in September: 4.2 days
The month with the highest number of rainy days is June (6.8 days).
The month with the least rainy days is February (0.3 days).
Average sea temperature in September
Viña del Mar, Chile
- Average sea temperature in September: 13.2°C
The best month for swimming (with the highest average sea temperature) is February (17.9°C).
The coldest month (with the lowest average sea temperature) is July (13.1°C).
Average daylight in September /
Average sunshine in September
Viña del Mar, 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 0min).
Average sunshine days in September
Viña del Mar, Chile
- Average sunshine days in September: 23.9 days
The months with the most sunshine days are January and March (30.3 days).
The month with the least sunshine days is June (22.7 days).
Average UV index in September
Viña del Mar, Chile
- Average UV index in September: 4
The months with the highest UV index are January, February, March, April, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August, September and October (UV index 4).
Average cloud cover in September
Viña del Mar, Chile
- Average cloud cover in September: 25
The month with the most cloud cover is June (Cloud cover 28).
The month with the least cloud cover is February (Cloud cover 7).
Average visibility in September
Viña del Mar, Chile
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May and June (10km).
The months with the lowest visibility are July, August, September, October, November and December (9km).
Viña del Mar, Chile
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