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 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
September's arrival registers an average high-temperature of a still pleasant 21°C (69.8°F), closely aligning with the temperature of the previous month. The average temperature drops to a fresh 11°C (51.8°F) during the night in the month of September.Humidity
In September, the average relative humidity is 45%.Rainfall
In September, the rain falls for 0.9 days. Throughout September, 1mm (0.04") of precipitation is accumulated. In Vallenar, during the entire year, the rain falls for 14.9 days and collects up to 37mm (1.46") of precipitation.Daylight
In Vallenar, the average length of the day in September is 11h and 56min.On the first day of the month, sunrise is at 06:56 and sunset at 18:29 -04. On the last day of September, sunrise is at 07:21 and sunset at 19:43 -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 Vallenar is 9.5h.UV index
In Vallenar, Chile, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What are September temperatures in Vallenar?
What is the average humidity in September in Vallenar?
How many days does it rain in September in Vallenar?
How many hours of daylight does Vallenar have in September?
When is the sunrise / sunset in September in Vallenar?
When does Daylight Saving Time (DST) start in September in Vallenar?
How many hours of sunshine does Vallenar have in September?
How high is the UV index in September in Vallenar?
Average temperature in September
Vallenar, Chile
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is February (26.5°C).
The month with the lowest average high temperature is July (18.8°C).
- Average low temperature in September: 11°C
The months with the highest average low temperature are January and February (15.3°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).
Average pressure in September
Vallenar, Chile
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is February (1014.5mbar).
Average wind speed in September
Vallenar, Chile
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is January (9.4km/h).
The calmest month (with the lowest average wind speed) is June (6.4km/h).
Average humidity in September
Vallenar, Chile
- Average humidity in September: 45%
The months with the highest relative humidity are January and February (56%).
The months with the lowest relative humidity are June, July and August (43%).
Average rainfall in September
Vallenar, Chile
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is May (12mm).
The driest months (with the least rainfall) are February, November and December (0mm).
Average rainfall days in September
Vallenar, Chile
- Average rainfall days in September: 0.9 days
The month with the highest number of rainy days is July (2.6 days).
The month with the least rainy days is November (0.1 days).
Average daylight in September /
Average sunshine in September
Vallenar, Chile
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 3min
The months with the most sunshine are January and February (Average sunshine: 10h and 0min).
The month with the least sunshine is May (Average sunshine: 9h and 12min).
Average sunshine days in September
Vallenar, Chile
- Average sunshine days in September: 28.7 days
The month with the most sunshine days is December (30.6 days).
The month with the least sunshine days is February (27.3 days).
Average UV index in September
Vallenar, Chile
- Average UV index in September: 5
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
Vallenar, Chile
- Average cloud cover in September: 8
The month with the most cloud cover is May (Cloud cover 13).
The months with the least cloud cover are February, March, November and December (Cloud cover 4).
Average visibility in September
Vallenar, 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).
Vallenar, Chile
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