December weather forecastCopiapó, Chile
December
Weather in December
Closing the year in December, Copiapó maintains a trend of incrementally warmer temperatures and uses this progression as an elegant curtain call. The year finishes on a high note, with the maximum temperature jumping slightly to 25.3°C (77.5°F). Having the maximum sunshine days, December flaunts a charming union of bright sunny days and cool nights, setting the stage for the weather cycle to repeat itself as Copiapó gears for the New Year.Temperature
The arrival of December in Copiapó sees an average high-temperature of a still moderately hot 25.3°C (77.5°F), hardly diverging from November's 24.7°C (76.5°F). December's nights observe an average temperature of 13.7°C (56.7°F).Humidity
In December, the average relative humidity is 59%.Rainfall
In Copiapó, rain does not fall in January, February, April, September through December.Daylight
The month with the longest days in Copiapó is December, with an average of 13h and 48min of daylight.On the first day of December in Copiapó, sunrise is at 06:38 and sunset at 20:23. On the last day of the month, sunrise is at 06:49 and sunset at 20:39 -03.
Sunshine
The average sunshine in December is 9.9h.UV index
The average daily maximum UV index in December in Copiapó is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 5 suggests this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Copiapó, Chile
- Average high temperature in December: 25.3°C
The warmest month (with the highest average high temperature) is January (26.8°C).
The month with the lowest average high temperature is July (19.6°C).
- Average low temperature in December: 13.7°C
The month with the highest average low temperature is January (15°C).
The coldest month (with the lowest average low temperature) is July (8.6°C).
Average pressure in December
Copiapó, Chile
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is February (1014.6mbar).
Average wind speed in December
Copiapó, Chile
- Average wind speed in December: 9km/h
The windiest month (with the highest average wind speed) is January (9.1km/h).
The calmest month (with the lowest average wind speed) is June (5.5km/h).
Average humidity in December
Copiapó, Chile
- Average humidity in December: 59%
The months with the highest relative humidity are February and March (63%).
The month with the lowest relative humidity is July (50%).
Average rainfall in December
Copiapó, Chile
- Average rainfall in December: 0mm
The wettest month (with the highest rainfall) is May (6mm).
The driest months (with the least rainfall) are January, February, April, September, October, November and December (0mm).
Average rainfall days in December
Copiapó, Chile
- Average rainfall days in December: 0.2 days
The month with the highest number of rainy days is July (1.9 days).
The month with the least rainy days is October (0.1 days).
Average daylight in December /
Average sunshine in December
Copiapó, Chile
- Average daylight in December: 13h and 48min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in December: 9h and 54min
The month with the most sunshine is January (Average sunshine: 10h and 0min).
The months with the least sunshine are May and June (Average sunshine: 9h and 18min).
Average sunshine days in December
Copiapó, Chile
- Average sunshine days in December: 30.6 days
The months with the most sunshine days are January and October (30.7 days).
The month with the least sunshine days is February (27.7 days).
Average UV index in December
Copiapó, Chile
- Average UV index in December: 5
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are June and July (UV index 4).
Average cloud cover in December
Copiapó, Chile
- Average cloud cover in December: 5
The month with the most cloud cover is May (Cloud cover 11).
The month with the least cloud cover is November (Cloud cover 4).
Average visibility in December
Copiapó, Chile
- Average visibility in December: 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).





