September weather forecastCalama, Chile
September
Weather in September
September celebrates Calama once again, basking under the bright Chilean sun. Marked by a higher temperature of 21.9°C (71.4°F), September reflects a significant rejuvenation from the cooler mid-year months. The winds of change blow lightly, carrying hints of a return to warmth. As this modest upswing continues, the days continue to stretch, offering more daylight. The gradual return of the warmer temperatures reveals September as the month to savor Calama's return to warmth.Temperature
As September unfolds in Calama, Chile, the average high-temperature reaches a still agreeable 21.9°C (71.4°F), hinting at a slight fluctuation from the previous month. Calama records a marked divergence from the day's high temperatures, with nights in September averaging at a chilly 7.6°C (45.7°F).Humidity
The average relative humidity in September in Calama, Chile, is 21%.Rainfall
In Calama, Chile, rain does not fall in March, April, September through December.Snowfall
In Calama, snow does not fall in January through April, June, August through December.Daylight
The average length of the day in September is 11h and 59min.On the first day of the month, sunrise is at 06:44 and sunset at 18:26 -04. On the last day of September, sunrise is at 07:16 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
March, April and September, with an average of 10h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are January through April, September through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 during September translates into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calama, Chile
- Average high temperature in September: 21.9°C
The warmest months (with the highest average high temperature) are January, November and December (24.1°C).
The month with the lowest average high temperature is June (18.7°C).
- Average low temperature in September: 7.6°C
The month with the highest average low temperature is February (12.2°C).
The coldest month (with the lowest average low temperature) is July (6°C).
Average pressure in September
Calama, Chile
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed in September
Calama, Chile
- Average wind speed in September: 12.2km/h
The windiest months (with the highest average wind speed) are January and December (12.8km/h).
The calmest month (with the lowest average wind speed) is April (10km/h).
Average humidity in September
Calama, Chile
- Average humidity in September: 21%
The month with the highest relative humidity is February (50%).
The month with the lowest relative humidity is August (20%).
Average rainfall in September
Calama, Chile
- Average rainfall in September: 0mm
The wettest months (with the highest rainfall) are January and February (3mm).
The driest months (with the least rainfall) are March, April, September, October, November and December (0mm).
Average rainfall days in September
Calama, Chile
- Average rainfall days in September: 0.2 days
The month with the highest number of rainy days is February (2.1 days).
The month with the least rainy days is November (0 days).
Average snowfall days in September
Calama, Chile
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is July (0.2 days).
The months with the least snowfall days are January, February, March, April, June, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Calama, Chile
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 10h and 0min
The months with the most sunshine are March, April and September (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 9h and 42min).
Average sunshine days in September
Calama, Chile
- Average sunshine days in September: 29.8 days
The month with the most sunshine days is October (30.9 days).
The month with the least sunshine days is February (25.7 days).
Average UV index in September
Calama, Chile
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 5).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover in September
Calama, Chile
- Average cloud cover in September: 2
The month with the most cloud cover is February (Cloud cover 14).
The months with the least cloud cover are August, September and November (Cloud cover 2).
Average visibility in September
Calama, 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).





