December Weather in Chillan, Chile

Last updated: August 21, 2025

Experience the vibrant December weather in Chillan, Chile, where the temperature often soars to a maximum of 33°C (92°F), providing warm days ideal for outdoor adventures. The average temperature hovers around a comfortable 19°C (66°F), while the nights can be pleasantly cool, dipping to a minimum of 7°C (44°F). With only 7 mm (0.3 in) of precipitation spread over a mere two days, the month boasts predominantly dry conditions, contributing to a humidity level of 42% that enhances the sunlit charm of this historical city. Embrace the lively December atmosphere as you explore the rich culture and scenic landscapes of Chillan!

December Temperature in Chillan

In December, Chillan, Chile, marks the transition into the height of summer, showcasing pleasantly warm temperatures that invite outdoor activities. With a minimum of 7°C (44°F) and a comfortably warm average of 19°C (66°F), December is a delightful time to explore this vibrant region. The maximum temperature can soar to 33°C (92°F), reflecting the season's peak warmth. As the month progresses, the trend toward higher temperatures becomes evident, building from the milder conditions of November. This gradual increase makes December an ideal time for locals and travelers alike to enjoy the sun-drenched landscapes and festive atmosphere that define Chillan during this lively summer month.

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

The chart illustrates December temperature patterns in Chillan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chillan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec686863575148474852556166
Data source: Temperature data for Chillan 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 Chillan

In Chillán, Chile, December marks a notable shift in precipitation patterns, with only 7 mm (0.3 in) falling over 2 days. This month concludes the rainy season with a sharp decline in rainfall compared to the wetter months preceding it, such as May and June, which recorded 131 mm and 256 mm respectively. The lighter precipitation in December signals the transition to warmer and drier conditions typical of summer, offering residents a respite from the heavier rains that dominate the earlier months. As the year wraps up, Chillán prepares to embrace sunnier days, leaving behind the notorious winter deluge and stepping into a season characterized by milder weather and sharper contrasts.

December Precipitation Trends in Chillan

The chart displays monthly precipitation patterns in Chillan, 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 Chillan, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec20919461312561351538568297
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Chillan

In Chillán, Chile, December ushers in a slight reprieve from the wintery grip that precedes it, with humidity levels dipping to 42%. This marks a notable decrease from the preceding months, especially after the peak of 85% experienced in July. As the year winds down, a gradual shift in humidity is evident: from the cozy dampness of May's 79%, December settles into a more comfortable range, reminiscent of the dry summer months that follow. This pattern highlights the seasonal transition, showcasing how Chillán's climate evolves from the humid depths of winter into the more arid conditions of summer. Overall, December provides a refreshing contrast as residents anticipate the dry heat ahead.

December Average Humidity in Chillan

This chart illustrates the average monthly humidity levels in Chillan, 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 Chillan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec41%41%48%60%79%83%86%83%68%64%49%42%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Chillan

In Chillan, Chile, December marks the return of intense sun exposure, with a UV Index of 14, categorizing it as extreme and resulting in a burn time of just 10 minutes. This trend of elevated UV levels is consistent with the earlier months of January and November, both also featuring an index of 14 and classified as extreme. As we transition into the summer months, it's clear that awareness of sun safety is crucial for residents and visitors alike, particularly during this peak season. Comparatively, the months from April to August show a steady decline, with UV levels dropping to the moderate range, allowing for longer safe exposure times. However, as December rolls in, it’s imperative to stay vigilant. For detailed information on managing sun exposure in Chillan, you can check the Chillan UV Index.

Maximum UV Index Levels in Chillan for December

The chart shows the monthly maximum UV Index (UVI) for Chillan 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 Chillan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141310753457101314
Data source: Chillan 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 Chillan

In December, Chillán, Chile, basks in a radiant embrace of sunshine, boasting an impressive 396 hours of sunlight. This vibrant month stands as a peak in the annual solar calendar, reflecting a clear upward trend from the 232 hours seen in May. As the year transitions from the cooler months, December's generous sunshine not only invites outdoor activities but also enhances the festive atmosphere, making it a perfect time for both locals and visitors to revel in the beauty of nature. Following the radiant December, the sunlight gradually diminishes, leading into the cooler months of winter, yet the warmth of this sun-drenched month lingers long after the last rays have set.

Monthly Sunshine Duration in Chillan: December Highlighted

The December sunshine duration represents the total number of hours Chillan 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.
JanFebMarAprMayJunJulAugSepOctNovDec321h344h354h294h232h172h213h240h283h337h373h396h
Data source: Chillan December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chillan During December

In Chillan, Chile, the likelihood of enjoying sunny weather in December stands out with an impressive 81% chance of sunshine. This marks a notable increase compared to earlier months, showcasing a positive trend as the year draws to a close. Following a steady rise, the sunny probability jumps from 77% in November to December’s peak, reflecting the region's journey through spring into the warmth of summer. After a dip in the cooler months of winter, where chances hovered around 33% to 61%, the sun makes a triumphant return, making December an inviting time for outdoor activities and exploration. Embrace the light!

Percentage of Sunny Days in December in Chillan

The chart illustrates the percentage of sunny days in Chillan 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 Chillan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec78%72%74%65%44%34%61%45%60%72%77%82%
Data source: Chillan December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chillan in December

As the year unfolds in Chillan, Chile, daylight duration exhibits a striking seasonal pattern. January and December stand out with 14 hours of sunlight, offering the longest days of the year, perfect for outdoor activities and exploration. As summer transitions into autumn, daylight begins to wane, dropping to 12 hours in March and further diminishing to 10 hours by May. The shortest days occur in June and July, each providing only 9 hours of daylight. However, as winter gives way to spring, daylight begins to lengthen again, gradually returning to 11 hours in September and 13 hours in October. This cyclical rhythm highlights the captivating interplay between light and the changing seasons in this vibrant region.

Average Daylight Hours in Chillan for December

The chart illustrates the variation in daylight duration in Chillan throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 18m13h 23m12h 15m11h 6m10h 9m9h 41m9h 56m10h 47m11h 52m13h 2m14h 3m14h 35m
Data source: Chillan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Chillan

In December, Chillán experiences a gentle average wind speed of 3.2 m/s (7 mph), a slight decrease from the more brisk breezes felt earlier in the year. After a steady climb in wind speeds from the late spring through late fall, December's winds offer a soothing embrace as the region transitions into the summer months. This pattern illustrates a noticeable seasonal wind variation, with January and October showcasing the year's peak velocities at 3.5 m/s (8 mph). As temperatures rise, the softening winds of December provide a serene backdrop, marking a time when Chillán's enchanting scenery becomes even more inviting.

Average December Wind Speed in Chillan

The chart displays monthly wind speed patterns in Chillan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.52.42.62.72.72.93.13.23.03.83.53.2 m/s
Data source: Chillan December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Chillan Compares to Other Months

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

In December, the weather exhibits mild temperatures with a minimum of 7°C (44°F) and an average of 19°C (66°F), peaking at 33°C (92°F). It experiences minimal precipitation, totaling just 7 mm (0.3 in) over 2 days, and maintains a comfortable humidity level of 42%. In contrast, January sees slightly cooler temperatures at a minimum of 6°C (43°F) and an average of 20°C (68°F), but can reach higher maximums of 38°C (101°F). There is a notable increase in precipitation, totaling 20 mm (0.8 in) over just 1 day, while humidity remains relatively stable at 41%. For more detailed information, you can check Chillan weather in January.

In comparing December and February weather, both months exhibit warm temperatures, but February tends to be slightly hotter overall. December's temperatures range from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), while February sees a minimum of 8°C (47°F) and reaches up to 36°C (97°F). Precipitation levels are similar, with December receiving 7 mm (0.3 in) over 2 days and February experiencing a bit more at 9 mm (0.4 in), also over 2 days. Humidity remains fairly consistent, with December at 42% and February slightly lower at 41%. For more details, check out Chillan weather in February.

In December, the weather typically features warmer temperatures with a minimum of 7°C (44°F) and an average of 19°C (66°F), peaking at a max of 33°C (92°F). The month sees relatively low precipitation, with only 7 mm (0.3 in) falling over two days, and the humidity level is around 42%.

In contrast, March experiences slightly cooler conditions, with a minimum temperature of 4°C (40°F) and an average of 17°C (63°F), while still reaching a maximum of 33°C (91°F). However, this month has higher rainfall, totaling 19 mm (0.7 in), also over two days, accompanied by increased humidity at 48%. For more detailed weather insights, you can explore Chillan weather in March.

In December, the weather tends to be warmer, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F) and an average of 19°C (66°F). The month experiences low precipitation, averaging only 7 mm (0.3 in) over just 2 days, along with a relatively dry humidity level of 42%. In contrast, April brings cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 28°C (83°F), averaging 14°C (57°F). This month is significantly wetter, with precipitation reaching 46 mm (1.8 in) across 4 days, and humidity increasing to 60%. For more detailed insights, check out Chillan weather in April.

December and May present strikingly different weather patterns. In December, temperatures range from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), with an average temperature of 19°C (66°F). The month sees relatively low precipitation of just 7 mm (0.3 in) over two days, accompanied by 42% humidity. In contrast, May experiences much cooler temperatures, with a minimum of -4°C (26°F), an average of 10°C (51°F), and a maximum of 23°C (73°F). This month is much wetter, with 131 mm (5.2 in) of precipitation occurring over eight days and higher humidity at 79%. For more details on the weather conditions in May, check out Chillan weather in May.

Comparing the weather in December and June reveals a striking contrast. December boasts warm temperatures, with a minimum of 7°C (44°F), an average of 19°C (66°F), and a maximum of 33°C (92°F). The month experiences minimal precipitation, totaling just 7 mm (0.3 in) over only 2 days, along with a comfortable humidity level of 42%. In stark contrast, June sees much cooler conditions, with temperatures ranging from a chilly -4°C (24°F) at night to a max of just 19°C (66°F) during the day. Rainfall is significantly higher, averaging 256 mm (10.1 in) spread over 13 days, and humidity rises to 82%. For a closer look at what to expect, check out Chillan weather in June.

December and July present starkly contrasting weather patterns. In December, temperatures range from a mild 7°C (44°F) at night to a warm 33°C (92°F) during the day, with relatively low humidity at 42% and minimal precipitation, averaging just 7 mm over 2 days. In contrast, July experiences much cooler temperatures, with nighttime lows plummeting to -4°C (25°F) and daytime highs only reaching 19°C (67°F). July is also characterized by significant rainfall, totaling 135 mm over 10 days, coupled with high humidity at 85%. This comparison highlights the dramatic seasonal shift, making December a warm and dry month while July is marked by cold and wet conditions. For a more detailed look, check out Chillan weather in July.

When comparing the weather in December and August, notable differences emerge. December offers a generally warmer climate, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F) and relatively low precipitation of just 7 mm (0.3 in) over two days. In contrast, August presents a significantly cooler atmosphere, with temperatures dropping to a minimum of -2°C (29°F) and peaking at 21°C (71°F). Additionally, August experiences much higher precipitation levels, totaling 153 mm (6.0 in) across 11 days, coupled with increased humidity at 83%. This stark contrast highlights the dramatic seasonal shift between the two months. For more detailed insights, check out Chillan weather in August.

December and September present contrasting weather profiles. In December, temperatures soar, ranging from a mild 7°C (44°F) to a warm 33°C (92°F), with an average high of 19°C (66°F). The month experiences minimal precipitation, with only 7 mm (0.3 in) over 2 days and humidity at a comfortable 42%. In stark contrast, September sees much cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 26°C (79°F), averaging around 11°C (52°F). This month is considerably wetter, receiving 85 mm (3.3 in) of rain over 6 days, accompanied by higher humidity levels at 68%. For more detailed insights on the weather conditions in September, you can check Chillan weather in September.

In comparing the weather between October and December, December presents much warmer conditions, with temperatures ranging from a mild 7°C (44°F) to a high of 33°C (92°F), while October sees cooler temperatures ranging from 1°C (34°F) to a maximum of 28°C (82°F). Additionally, October is characterized by significantly higher precipitation, totaling 68 mm (2.7 in) over 7 days, compared to December's much drier conditions, which only receive 7 mm (0.3 in) over just 2 days. The humidity level in October is also notably higher at 64%, compared to December's 42%. For more details on the weather in October, you can visit Chillan weather in October.

In December, the weather tends to be warmer, with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F), compared to November's range of 5°C (41°F) to 30°C (86°F). Additionally, December experiences significantly less precipitation, with only 7 mm (0.3 in) over 2 days, while November sees 29 mm (1.2 in) over 3 days, indicating that December is generally drier. Humidity levels also drop in December to 42%, compared to November's 49%, contributing to a more comfortable feel during the warmer days. For more details on the weather in November, you can check Chillan weather in November.

Compare Chillan's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Chillan

December in Chillan marks the transition to summer, offering warmer temperatures and lower humidity compared to the earlier months. With an average high of 33°C (92°F), this month stands out for its warmth and minimal precipitation, boasting just a couple of rain days. This makes December a perfect time for outdoor activities and enjoying the vibrant natural beauty of the region. For anyone looking to understand the climate patterns better, you can explore more at Chillan Climate.