December Weather in Copiapo, Chile

Last updated: August 21, 2025

December in Copiapó, Chile, offers a delightful climate characterized by warm temperatures and clear skies. With a maximum of 29°C (84°F) and an average of 19°C (67°F), visitors can enjoy the pleasant warmth during the day, while nighttime temperatures dip to a cooler 11°C (53°F). Remarkably, this month boasts zero precipitation, ensuring that outdoor activities can proceed uninterrupted under the sun. The humidity level hovers at a comfortable 63%, contributing to an enjoyable experience in this vibrant northern region. Embrace the festive spirit and explore the natural beauty of Copiapó in December!

December Temperature in Copiapo

In December, Copiapó, Chile, experiences a warm transition into summer, with temperatures showcasing a delightful range. The minimum temperature hovers around 11°C (53°F), while the average settles at a pleasant 19°C (67°F). Days can get quite toasty, with maximum highs reaching up to 29°C (84°F), making it an ideal time for outdoor adventures. This pattern marks a gradual rise from the cooler temperatures of the previous months, offering a blend of comfort and warmth that attracts both locals and visitors alike. Overall, December in Copiapó promises a vibrant atmosphere as the city basks in the sun’s embrace.

December Weather in Copiapo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Copiapo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Copiapo, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec696967646056565861646567
Data source: Temperature data for Copiapo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Copiapo

In Copiapó, Chile, December marks the continuation of an exceptionally dry climate, with 0 mm of precipitation recorded for the month. This trend of minimal rainfall is consistent throughout the latter part of the year, as November and October also see no precipitation. Following the slightly wetter months of May and June, where the region experienced a few days of light rain, July through December settles into a prolonged dry spell. The absence of precipitation days in December not only underscores the arid conditions typical for this time but also reinforces Copiapó's status as one of the driest regions in the world, with the landscape largely untouched by rain during this period.

December Precipitation Trends in Copiapo

The chart displays monthly precipitation patterns in Copiapo, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Copiapo, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec100098221000
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Copiapo

In Copiapó, Chile, December marks a shift as humidity levels rise to 63%, providing a refreshing transition into the summer months. This uptick is noticeable following a gradual decline from the peak of 78% in March, as the desert climate typically experiences drier conditions toward the end of the year. Notably, December's humidity is a slight increase from 58% in November, indicating a subtle yet significant change as the region prepares for warmer temperatures. Overall, while the humidity levels fluctuate throughout the year, December serves as a reminder that even in arid climates, moisture can make a comeback, enhancing the dynamics of the local weather.

December Average Humidity in Copiapo

This chart illustrates the average monthly humidity levels in Copiapo, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Copiapo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%76%78%71%68%64%63%60%58%56%58%63%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Copiapo

In December, Copiapó experiences an extreme UV Index of 16, maintaining the year's trend of heightened solar exposure. With a burn time of just 10 minutes, caution is essential for outdoor activities, echoing the patterns seen in the preceding months of October and November, which also recorded an extreme rating. Before that, the UV Index showed a gradual decrease during the cooler months, with April and May dropping to very high and high levels, respectively. However, as the year concludes, the intensity ramps back up, reinforcing the need for diligent sun protection in this sun-drenched locale. For more information, visit the Copiapo UV Index.

Maximum UV Index Levels in Copiapo for December

The chart shows the monthly maximum UV Index (UVI) for Copiapo in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Copiapo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151310756810131516
Data source: Copiapo December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Copiapo

In Copiapó, Chile, December shines brightly as the sun graces the region with an impressive 399 hours of sunshine, marking it as one of the sunniest months of the year. This radiant month follows a steady upward trend, showcasing a gradual increase in daylight from the winter months of June and July, where sunshine dips to just 288 and 303 hours, respectively. As the year progresses, each month transitions smoothly into more sunlight, building anticipation for longer days. By the time December arrives, it becomes clear that this region embraces the summer heat, creating a vibrant backdrop for outdoor adventures and celebrations. The warmth of December offers a delightful contrast to the chill of earlier months, making Copiapó a sun-soaked haven during the festive season.

Monthly Sunshine Duration in Copiapo: December Highlighted

The December sunshine duration represents the total number of hours Copiapo experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec318h344h358h324h309h288h303h328h339h371h382h399h
Data source: Copiapo December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Copiapo During December

In December, Copiapó, Chile, enjoys a ** sunniness** that remains consistent with the prevailing trends of the earlier months. With an 87% chance of sunshine, the weather is predominantly bright, although slightly less certain compared to the peak summer months of January and February, which boast an impressive 99% and 95% chance, respectively. This trend of predominantly clear skies continues through March and April, showcasing a gradual decline as autumn approaches. However, even as daylight hours decrease, December's weather still holds up well, maintaining a vibrant atmosphere for outdoor activities. Whether you're exploring the local scenery or engaging in festive celebrations, the likelihood of a sunny day in this desert oasis remains a delightful reality.

Percentage of Sunny Days in December in Copiapo

The chart illustrates the percentage of sunny days in Copiapo throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Copiapo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec99%95%96%86%70%87%75%91%93%96%91%87%
Data source: Copiapo December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Copiapo in December

In Copiapó, Chile, daylight duration exhibits a captivating ebb and flow throughout the year. Starting strong, January and February bask in 13 hours of sunlight, inviting long, sun-filled days perfect for outdoor adventures. As the seasons shift into March, daylight begins to wane slightly, dropping to 12 hours, and continues its gradual descent through April and May, where it reaches a cozy 10 hours. This pattern of shorter days persists into the depth of winter, with June and July maintaining that same brief light. However, as spring emerges in August, daylight inches back up to 11 hours, paving the way for brighter days ahead. By November, the sun reclaims its strength, returning to 13 hours before concluding the year with the same generous light in December. This cyclical rhythm of daylight not only enhances Copiapó’s landscape but also sets the stage for various seasonal activities and celebrations.

Average Daylight Hours in Copiapo for December

The chart illustrates the variation in daylight duration in Copiapo throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 37m13h12h 12m11h 23m10h 44m10h 25m10h 35m11h 10m11h 56m12h 45m13h 27m13h 49m
Data source: Copiapo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Copiapo

In December, Copiapó, Chile, experiences a refreshing uptick in wind activity, with average wind speeds hitting 2.1 m/s (5 mph). This marks a slight increase from the previous month, maintaining a trend where winds generally remain gentle throughout the year. From the consistent 2.0 m/s in November to January's return to 2.1 m/s, these breezy December days bring a welcome breath of fresh air as summer approaches. The wind speeds, while relatively calm, reflect the region's overall stability, creating an ideal setting for outdoor activities amidst the stunning Atacama landscape. As the year winds down, this gentle breeze serves as a reminder of the dynamic yet serene climate that defines Copiapó.

Average December Wind Speed in Copiapo

The chart displays monthly wind speed patterns in Copiapo, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.01.91.71.81.92.01.91.92.02.02.1 m/s
Data source: Copiapo December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Copiapo Compares to Other Months

Weather in Copiapo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Copiapo, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, the weather in Copiapó sees mild temperatures with a minimum of 11°C (53°F), an average of 19°C (67°F), and a maximum of 29°C (84°F). This month enjoys a dry climate, with no recorded precipitation and a humidity level of 63%. In contrast, January experiences slightly warmer conditions, with a minimum of 12°C (54°F), an average of 20°C (69°F), and a maximum of 30°C (86°F). While the precipitation remains minimal at 1 mm, the humidity increases to 74%, adding a touch of mugginess to the typically warm weather. For more details on January's weather, visit Copiapo weather in January.

In comparing the weather between December and February, both months showcase relatively warm conditions, but February tends to be slightly warmer overall. December has minimum temperatures around 11°C (53°F) and averages 19°C (67°F), reaching a maximum of 29°C (84°F). February, on the other hand, sees a minimum of 13°C (56°F) and averages 20°C (69°F), with a similar maximum of 28°C (83°F). Both months record no precipitation and humidity levels increase in February to 76%, compared to December’s 63%. For more details on February weather, you can check out Copiapo weather in February.

In December, the temperatures in Copiapó range from a minimum of 11°C (53°F) to a maximum of 29°C (84°F), with an average of 19°C (67°F). This month enjoys dry conditions, with no recorded precipitation and a humidity level of 63%. In contrast, March brings slightly warmer temperatures, with a minimum of 12°C (54°F), an average of 20°C (68°F), and a maximum of 28°C (82°F). Humidity increases to 78%, but like December, March also experiences dry weather with no precipitation recorded. For more details about the weather in March, you can visit Copiapo weather in March.

In December, the weather in Copiapó is characterized by mild temperatures, with a minimum of 11°C (53°F) and an average of 19°C (67°F), peaking at a high of 29°C (84°F). The humidity is relatively moderate at 63%, and there is no recorded precipitation during the month. In contrast, April sees slightly cooler temperatures, where the minimum dips to 8°C (47°F) and the average stays close at 18°C (65°F), while the maximum reaches 28°C (83°F). The humidity increases to 71%, but like December, April also experiences no rainfall. For more detailed insights into the weather during this month, check out Copiapo weather in April.

In December, the weather is warm and dry, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 29°C (84°F), and no recorded precipitation, resulting in a comfortable humidity level of 63%. In contrast, May experiences cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 26°C (79°F), accompanied by a slight increase in precipitation at 9 mm (0.4 in) over just one day, and a humidity level of 68%. Overall, December offers a significantly drier and warmer climate compared to the relatively cooler and slightly wetter conditions of May. For a more detailed look at the weather in May, you can visit Copiapo weather in May.

In December, the weather is markedly warmer, with average temperatures ranging from a comfortable 19°C (67°F) to a maximum of 29°C (84°F), and no recorded precipitation throughout the month. In contrast, June experiences cooler temperatures, with averages hovering around 13°C (56°F) and a minimum drop down to 1°C (34°F). Despite a slight increase in humidity, June also brings some precipitation, recording 8 mm (0.3 in) over just one day. For a more detailed look at June weather, you can check out Copiapo weather in June.

When comparing the weather in December and July, December boasts a warmer range with minimum temperatures of 11°C (53°F) and maximums reaching up to 29°C (84°F), in contrast to July's cooler minimum of 0°C (33°F) and similar maximum around 30°C (86°F). Both months exhibit low precipitation levels, with December recording 0 mm of rain and July slightly higher at 2 mm. Interestingly, humidity levels remain constant at 63% for both months, providing a consistent atmospheric feel despite the temperature differences. For more details on July weather, you can check Copiapo weather in July.

When comparing the weather in December and August, December offers a warmer experience with average temperatures peaking at 19°C (67°F), while August sees a cooler average of 15°C (59°F). Both months share a maximum temperature of 29°C (85°F), but December enjoys higher minimum temperatures, starting at 11°C (53°F) compared to August's chillier 2°C (35°F). Precipitation is quite low in both months, with December recording no rainfall and August experiencing only 2 mm (0.1 in). Humidity levels are quite similar, sitting at 63% in December and 60% in August. For a detailed look at the conditions, you can visit Copiapo weather in August.

In December, the weather in Copiapó is generally warmer than in September, with minimum temperatures around 11°C (53°F) compared to September's cooler lows of 3°C (38°F). Both months can reach a maximum of 29°C (84°F), but the average temperature in December is significantly higher at 19°C (67°F) versus September's 16°C (61°F). Additionally, December boasts a dry climate with no recorded precipitation and a humidity level of 63%, while September experiences minimal rainfall of 1 mm (0.1 in) and slightly lower humidity at 58%. For more details about September weather, you can visit Copiapo weather in September.

December weather in Copiapó is generally warmer than in October, with average temperatures reaching 19°C (67°F) compared to October's 18°C (64°F). The minimum temperature in December is also higher at 11°C (53°F) versus 7°C (45°F) in October, while the maximum temperature peaks at 29°C (84°F) compared to October's 27°C (81°F). Additionally, both months experience dry conditions with no recorded precipitation, but December has a slightly higher humidity level of 63% compared to October's 56%. For more details on October weather, you can check Copiapo weather in October.

In December, the weather shows a slight warming trend compared to November. The minimum temperature in December averages 11°C (53°F), just 1°C higher than November's minimum of 10°C (50°F). Both months share a similar average temperature of around 19°C (66°F), but December's maximum temperature reaches 29°C (84°F), slightly lower than November's maximum of 30°C (86°F). Additionally, humidity levels increase in December to 63%, compared to November's lower 58%. Interestingly, both months record no precipitation, making them equally dry. For an in-depth look at November's weather, you can check Copiapo weather in November.

Compare Copiapo's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Copiapo

December in Copiapó heralds the onset of summer, characterized by warm temperatures that contrast sharply with the cooler months preceding it. With averages soaring to around 19°C (67°F) and maximums often reaching 29°C (84°F), it's a vibrant time that beckons outdoor activities. Notably, December stands out for its dry conditions, with no recorded precipitation, making it an ideal month for exploration. The humidity levels hover around 63%, providing a comfortable yet invigorating atmosphere. For a deeper dive into the annual cycle of weather in this remarkable region, check out Copiapo Climate.