December Weather in Puerto Natales, Chile

Last updated: August 21, 2025

December in Puerto Natales, Chile brings a mix of mild temperatures and frequent rainfall, making it a dynamic time for visitors. With maximum temperatures reaching 20°C (68°F) and an average of 11°C (51°F), the weather is generally cool, while the minimum dips to around 1°C (34°F) at night. This month experiences 156 mm (6.1 in) of precipitation over 22 days, leading to a humidity level of 87%, ensuring lush landscapes and the vibrant beauty of nature. Travelers should prepare for the unpredictability of Patagonia’s weather, embracing both the cool breezes and the refreshing showers that define this stunning destination.

December Temperature in Puerto Natales

In December, Puerto Natales begins to embrace the warmth of summer, showcasing a delightful range of temperatures that reflect the transition from the cooler months. With minimums around 1°C (34°F) and averages sitting at a comfortable 11°C (51°F), visitors can expect pleasantly mild weather. The maximum temperature can reach up to 20°C (68°F), making it a perfect time for outdoor adventures in this stunning Patagonian landscape. This month marks a notable warming trend compared to the chill of the preceding months, inviting travelers to explore Puerto Natales’ breathtaking fjords and vibrant scenery under the sun. Overall, December serves as a beautiful prelude to a warm summer filled with natural wonders.

December Weather in Puerto Natales: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Puerto Natales, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puerto Natales, 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).
JanFebMarAprMayJunJulAugSepOctNovDec525350454034333740444851
Data source: Temperature data for Puerto Natales 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 Puerto Natales

December in Puerto Natales, Chile, reflects the region's characteristic wet climate, with precipitation reaching 156 mm (6.1 in) over 22 days of rain. This marks a continuation of the trend observed in the preceding months, where precipitation levels remain high, especially as the summer approaches. Notably, December's rainfall is consistent with November's total, highlighting a persistent pattern of damp days as the year closes. With these figures, December stands as one of the wetter months of the year, echoing the general trend of increasing precipitation from late spring through the early summer, underscoring the area's vibrant ecological dynamics.

December Precipitation Trends in Puerto Natales

The chart displays monthly precipitation patterns in Puerto Natales, 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 Puerto Natales, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec133114132172113102105118119156161156
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Puerto Natales

In December, Puerto Natales experiences a comfortable humidity level of 87%, marking a slight decrease from the heavily humid conditions of previous months. This reduction in humidity can be seen as a part of a broader trend where the winter months show a gradual increase in moisture, peaking at 92% in July, before tapering off slightly towards the end of the year. The levels during December are still higher compared to the early part of the year, where January and February register at 86% and 88%, respectively. Overall, while December maintains a relatively high humidity, it hints at the shift towards drier conditions in the approaching summer months, offering a balance between the humid winters and the drier seasons ahead.

December Average Humidity in Puerto Natales

This chart illustrates the average monthly humidity levels in Puerto Natales, 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 Puerto Natales is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%88%89%90%90%91%92%89%88%88%88%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Puerto Natales

In December, Puerto Natales experiences an extreme UV Index of 11, similar to the previous month's levels, and features a burn time of just 10 minutes. As the year comes to a close, the UV Index remains notably high, reflecting a trend observed since November when it peaked at 12. As summer progresses into January, we can expect this extreme exposure to continue, showcasing the importance of sun protection during these months. In contrast, the UV Index begins to decrease significantly from March onward, indicating a shift to lower solar intensity. For those planning outdoor activities, it’s essential to stay informed and protect your skin—check the latest updates on the Puerto Natales UV Index.

Maximum UV Index Levels in Puerto Natales for December

The chart shows the monthly maximum UV Index (UVI) for Puerto Natales 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 Puerto Natales typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1110742124481211
Data source: Puerto Natales 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 Puerto Natales

As December arrives in Puerto Natales, Chile, the city basks in an impressive 310 hours of sunshine, marking the pinnacle of daylight for the year. This trend of increasing daylight is a delightful gift, especially compared to the shorter, gloomier days seen in the winter months of June and July. Following a steady ascent from 180 hours in April to nearly 300 hours in November, December's brightness serves as the perfect backdrop for exploring the breathtaking landscapes and vibrant culture of this southern gem. The gradual light increase throughout the year underscores the beauty of the changing seasons, culminating in a sun-drenched holiday month that invites both locals and travelers to revel in nature's splendor.

Monthly Sunshine Duration in Puerto Natales: December Highlighted

The December sunshine duration represents the total number of hours Puerto Natales 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.
JanFebMarAprMayJunJulAugSepOctNovDec245h250h234h180h140h125h140h184h221h280h292h310h
Data source: Puerto Natales December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Puerto Natales During December

In Puerto Natales, Chile, the likelihood of sunny weather in December stands at 28%, mirroring the similar chances seen in November and January. This slight consistency hints at a gradual transition into the summer months, where the sun begins to play a more prominent role in the region's weather. Analyzing the broader trends, we note that the late spring and early summer months generally offer more sunshine, with March peaking at 34%. However, as we move into the depths of winter, the chances drop significantly, with the darker months of May through August featuring the lowest probabilities of sunny weather. Therefore, while December showcases a decent chance for sunshine, it signals a growing opportunity for enjoyable weather as summer approaches.

Percentage of Sunny Days in December in Puerto Natales

The chart illustrates the percentage of sunny days in Puerto Natales 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 Puerto Natales experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%26%35%27%19%23%23%23%29%29%28%28%
Data source: Puerto Natales December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Puerto Natales in December

In Puerto Natales, Chile, the daylight duration presents a captivating seasonal rhythm that mirrors the shifting patterns of nature. December shines brightly with 16 hours of daylight, akin to January's sun-drenched days, reflecting the height of the Southern Hemisphere's summer. As the year transitions toward winter, daylight hours gradually dwindle, with February and March basking in 14 and 12 hours respectively, before dipping to a cozy 10 hours in April. The shorter days of winter peak in June, offering only 7 hours of light, yet as the year progresses, the return of longer days in July and August brings a gradual increase, culminating in a lush 15 hours by November. This natural ebb and flow not only highlights the enchanting dynamics of daylight in Puerto Natales but also invites exploration of its stunning landscapes, making every season a unique experience.

Average Daylight Hours in Puerto Natales for December

The chart illustrates the variation in daylight duration in Puerto Natales throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec16h 1m14h 22m12h 23m10h 24m8h 42m7h 50m8h 19m9h 50m11h 44m13h 44m15h 34m16h 34m
Data source: Puerto Natales daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Puerto Natales

As December unfolds in Puerto Natales, the wind begins to pick up, reaching an average speed of 5.2 m/s (12 mph), the highest for the year. This noteworthy increase signals the transition into summer, refreshing the landscape with brisk air. In contrast to the gentler breezes of mid-year, where speeds dipped to a low of 2.3 m/s (5 mph) in June, December’s winds offer a lively reminder of the region's dynamic weather patterns. As the year progresses, starting from the calmer months of April and May, the winds gradually gain strength, setting the stage for an invigorating summer experience. Overall, December stands out as a vibrant prelude to the warmer days ahead, effectively mirroring the natural rhythm of this stunning Patagonian locale.

Average December Wind Speed in Puerto Natales

The chart displays monthly wind speed patterns in Puerto Natales, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.84.44.52.92.72.33.23.43.04.94.85.2 m/s
Data source: Puerto Natales December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Puerto Natales Compares to Other Months

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

In December, the weather in Puerto Natales is characterized by a minimal temperature of 1°C (34°F), an average of 11°C (51°F), and a maximum of 20°C (68°F), accompanied by 156 mm (6.1 in) of precipitation over 22 days and humidity levels around 87%. In contrast, January experiences slightly warmer temperatures, with a minimum of 2°C (36°F), an average of 11°C (52°F), and a maximum reaching 24°C (75°F). January also sees a decrease in precipitation, totaling 133 mm (5.2 in) over 20 days, and slightly lower humidity at 86%. For more detailed information, you can check Puerto Natales weather in January.

In comparing the weather of December and February, December tends to experience slightly cooler temperatures with a minimum of 1°C (34°F) and an average of 11°C (51°F), while February warms up to a minimum of 2°C (36°F) and an average of 12°C (53°F). The maximum temperatures also reflect this trend, with December peaking at 20°C (68°F) compared to February's higher limit of 27°C (81°F). Additionally, December sees more rainfall, accumulating 156 mm (6.1 in) over 22 days, whereas February has less precipitation at 114 mm (4.5 in) across 18 days. Humidity remains relatively consistent in both months, with December at 87% and February slightly higher at 88%. For more detailed information, you can check Puerto Natales weather in February.

When comparing the weather in December and March, both months display mild temperatures but with some distinct differences. December typically sees a minimum temperature of around 1°C (34°F) and an average of 11°C (51°F), reaching a maximum of 20°C (68°F). In contrast, March has a slightly colder minimum of 0°C (33°F) and an average of 10°C (50°F), but can peak at a warmer maximum of 23°C (73°F). Precipitation is also a factor to consider; December experiences a total of 156 mm (6.1 in) over about 22 days, while March has a lower total of 132 mm (5.2 in) across 20 days. Humidity levels are comparable, with December at 87% and March slightly higher at 89%. For a more detailed look at conditions specific to March, visit Puerto Natales weather in March.

December and April exhibit remarkable differences in weather patterns. In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 20°C (68°F), with an average of 11°C (51°F). The month sees considerable precipitation, totaling 156 mm (6.1 in) over 22 days, accompanied by high humidity levels at 87%. In contrast, April experiences cooler conditions, with temperatures dipping as low as -3°C (27°F) and averaging 7°C (45°F), while still reaching a maximum of 20°C (68°F). Precipitation increases to 172 mm (6.8 in), but occurs over fewer days, totaling 19. The humidity remains slightly higher at 89%. For more details, you can explore Puerto Natales weather in April.

When comparing the weather in December and May, we see notable differences in temperature and precipitation patterns. December typically boasts milder temperatures, with an average of 11°C (51°F) and highs reaching up to 20°C (68°F), while May sees cooler temperatures, averaging around 4°C (40°F) and a maximum of 14°C (58°F). In terms of precipitation, December is wetter, with 156 mm (6.1 in) over 22 days, compared to May's 113 mm (4.4 in) across 17 days; however, both months experience high humidity, with December at 87% and May slightly higher at 89%. For more details on the weather trends in May, you can check Puerto Natales weather in May.

December and June in Puerto Natales exhibit contrasting weather patterns. In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 20°C (68°F), with an average of 11°C (51°F). The month sees significant precipitation, totaling 156 mm (6.1 in) over 22 days, coupled with high humidity at 87%. In contrast, June experiences colder conditions, with temperatures dropping further to a minimum of -17°C (2°F) and a maximum of only 10°C (51°F), leading to an average temperature of just 1°C (34°F). Although precipitation is lower at 102 mm (4.0 in) across 17 days, humidity remains high at 91%. For more details on the weather during this month, check Puerto Natales weather in June.

The weather in December is considerably milder than in July, with average temperatures ranging from 1°C (34°F) to a pleasant 20°C (68°F), while July presents a stark contrast, featuring an average range of -14°C (8°F) to 10°C (50°F). December experiences more precipitation, totaling 156 mm (6.1 in) over 22 days, compared to July's 105 mm (4.1 in) across 18 days. Additionally, December's humidity stands at 87%, slightly lower than the 92% humidity characteristic of July. For a more detailed look at July's weather, visit Puerto Natales weather in July.

When comparing the weather in December and August, the differences are quite pronounced. December generally exhibits milder temperatures, with a minimum of 1°C (34°F) and an average of 11°C (51°F), while August is cooler, with temperatures dipping to a minimum of -7°C (19°F) and an average of 3°C (37°F). December also tends to be slightly wetter, receiving 156 mm (6.1 in) of precipitation over 22 days, compared to August's 118 mm (4.7 in) over 20 days. Additionally, humidity levels are comparable, with December at 87% and August at 89%. For more detailed insights into August conditions, you can visit Puerto Natales weather in August.

In comparing the weather between December and September, December enjoys milder temperatures with an average of 11°C (51°F), while September experiences cooler conditions with an average of only 5°C (40°F). The maximum temperature in December reaches 20°C (68°F), significantly warmer than September's maximum of 14°C (58°F). Precipitation is slightly higher in December, totaling 156 mm (6.1 in) over 22 days, compared to September’s 119 mm (4.7 in) over 18 days. Humidity levels are similar, with December at 87% and September at 88%. For more details on September's weather, check out Puerto Natales weather in September.

In comparing the weather between October and December, we notice a significant increase in temperatures as December boasts an average of 11°C (51°F) compared to October's cooler average of 6°C (44°F). The minimum temperature in December is 1°C (34°F), while in October, it can drop to -4°C (24°F), making October feel decidedly chillier. Both months experience similar precipitation levels, with 156 mm (6.1 in) of rainfall; however, December has slightly more rainy days at 22, compared to October's 21 days. Humidity remains quite high in both months, with December at 87% and October at 88%, contributing to an overall dampness in the air. For a more detailed look at October's weather, you can visit Puerto Natales weather in October.

In comparing the weather of December to November, both months experience similar maximum temperatures, peaking around 20°C (68°F). However, December generally sees slightly warmer average temperatures, with a minimum of 1°C (34°F) compared to November's 0°C (32°F). Precipitation remains high in both months, but December has just a bit less rainfall at 156 mm (6.1 in) over 22 days, in contrast to November's 161 mm (6.4 in) over 19 days. Notably, humidity levels are comparable, hovering around 87% in December and 88% in November. For further details on November weather conditions, you can refer to Puerto Natales weather in November.

Compare Puerto Natales's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Puerto Natales

As December arrives in Puerto Natales, the weather transforms into a dynamic blend of mild temperatures and increased rainfall. With an average temperature of around 11°C (51°F), the month offers a refreshing break from the chill of winter, though evenings can still dip down to 1°C (34°F). The increased humidity, averaging at 87%, combined with about 22 days of precipitation, sets the stage for a vibrant and lush landscape, differing significantly from the drier, cooler months preceding it. As nature comes alive, it's the perfect time to explore the stunning surroundings. For more details, visit Puerto Natales Climate.