September weather forecastVallenar, Chile
September
Weather in September
September, the first month of the spring in Vallenar, is also an agreeable month, with an average temperature ranging between min 11°C (51.8°F) and max 21°C (69.8°F).Temperature
As Vallenar steps into September, the average high-temperature holds at a still agreeable 21°C (69.8°F), hinting at a minor fluctuation from the prior month. The average temperature during September nights in Vallenar is registered at a fresh 11°C (51.8°F).Humidity
In September, the average relative humidity is 45%.Rainfall
In Vallenar, in September, during 0.9 rainfall days, 1mm (0.04") of precipitation is typically 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 Vallenar, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 54min
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 30min
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).
