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 snowfall in September
- Average snowfall 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
September
Weather in September
Temperature
The beginning of September records an average high-temperature of a still cool 11.7°C (53.1°F), marking a negligible difference from August's 10.9°C (51.6°F). Throughout the nights in September, an average low-temperature of 2.7°C (36.9°F) is noted.Humidity
The average relative humidity in September is 40%.Rainfall
In September, the rain falls for 4.4 days. Throughout September, 9mm (0.35") of precipitation is accumulated. Throughout the year, there are 119.8 rainfall days, and 556mm (21.89") of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In Lauca, in September, snow falls for 0.8 days, with typically accumulated 16mm (0.63") of snow. Throughout the year, there are 16.8 snowfall days, and 629mm (24.76") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 0min.On the first day of the month, sunrise is at 06:43 and sunset at 18:29 -04. On the last day of September, sunrise is at 07:18 and sunset at 19:34 -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 Lauca, the average sunshine in September is 9.8h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 3. January through December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September in Lauca?
How much does it rain in September?
How many days does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
When does Daylight Saving Time (DST) start in September?
How long on average sun shines in September?
What are the months with the highest UV index?
When is the lowest UV index?
What is the UV index intensity in September?
Average temperature in September
Lauca, Chile
- Average high temperature in September: 11.7°C
The warmest months (with the highest average high temperature) are October and November (12.6°C).
The month with the lowest average high temperature is July (9.9°C).
- Average low temperature in September: 2.7°C
The month with the highest average low temperature is February (6°C).
The coldest month (with the lowest average low temperature) is July (1.1°C).
Average pressure in September
Lauca, Chile
- Average pressure in September: 1017.1mbar
The months with the highest atmospheric pressure are June and July (1018.4mbar).
The month with the lowest atmospheric pressure is December (1013.9mbar).
Average wind speed in September
Lauca, Chile
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is December (9.7km/h).
The calmest month (with the lowest average wind speed) is June (7.2km/h).
Average humidity in September
Lauca, Chile
- Average humidity in September: 40%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (36%).
Average rainfall in September
Lauca, Chile
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is January (167mm).
The driest months (with the least rainfall) are June and August (3mm).
Average rainfall days in September
Lauca, Chile
- Average rainfall days in September: 4.4 days
The month with the highest number of rainy days is February (22.8 days).
The month with the least rainy days is August (1.4 days).
Average snowfall in September
Lauca, Chile
- Average snowfall in September: 16mm
The month with the highest snowfall is January (220mm).
The months with the least snowfall are May and June (1mm).
Average snowfall days in September
Lauca, Chile
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May and June (0.3 days).
Average daylight in September /
Average sunshine in September
Lauca, Chile
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are May, June, July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 36min).
Average sunshine days in September
Lauca, Chile
- Average sunshine days in September: 22.8 days
The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is February (3.8 days).
Average UV index in September
Lauca, Chile
- Average UV index in September: 3
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 3).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 3).
Average cloud cover in September
Lauca, Chile
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 3).
Average visibility in September
Lauca, Chile
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
