Last updated: August 21, 2025
Experience the unique December weather of Antofagasta, Chile, where coastal charm meets arid climate. With a maximum temperature reaching a pleasant 19°C (67°F), the month offers an inviting average of 17°C (63°F), perfect for outdoor adventures. Evenings cool to a comfortable 14°C (58°F), providing a refreshing respite. This month is predominantly dry, recording a mere 8 mm (0.3 in) of precipitation and zero rain days, allowing you to enjoy the stunning landscapes uninterrupted. Embrace the 78% humidity, which adds to the coastal feel, making December an ideal time to explore the beauty of Antofagasta.
In Antofagasta, Chile, December marks the transition into summer, bringing a refreshing warmth that captivates both locals and visitors alike. The temperatures during this time feature a minimum of 14°C (58°F), providing a comfortable start to the day, while averaging around 17°C (63°F). As the sun climbs higher, daytime highs reach a pleasant 19°C (67°F), creating perfect conditions for outdoor activities along the stunning coastline. Compared to the cooler months preceding it, December showcases a noticeable warming trend, with the climate gradually shifting from the cooler averages of the previous months to a more inviting and vibrant summer atmosphere. This gentle rise in temperature sets the stage for enjoying the beach, exploring the desert landscape, or simply soaking in the lively ambiance of the city.
December in Antofagasta, Chile, wraps up the year with a modest precipitation total of 8 mm (0.3 in), marking a trend of minimal rainfall as the region moves into the dry summer months. Notably, December follows a pattern seen throughout the year where precipitation peaks in the winter months; however, unlike the earlier wet season, this month did not record any rainy days, maintaining the trend of dryness that characterizes Antofagasta’s climate. With an overall decline in rain as the year progresses—plummeting from 18 mm (0.7 in) in April to just 8 mm in December—it's clear that the city transitions into a hot and arid summer, reinforcing its reputation as one of the driest places on Earth.
In the coastal city of Antofagasta, Chile, December offers a glimpse into the consistently high humidity characteristic of the region. With a humidity level of 78%, December stands as a transitional month, slightly lower than the higher percentages witnessed during the peak summer months of January and February, which both soar to 83% and 84% respectively. As the year progresses, a gradual decline is evident; humidity dips from 84% in March to 77% in July and August, before gently rising again in the latter months. This cyclical pattern highlights Antofagasta’s unique climate, where humidity remains a significant factor throughout the year, shaping the coastal experience and lifestyle.
In December, Antofagasta, Chile, experiences a peak UV Index of 15, placing it in the extreme exposure category with a burn time of just 10 minutes. This trend of intense UV radiation persists throughout the summer months, as both January and February maintain the same extreme level, further emphasizing the need for sun protection during this period. Interestingly, while the UV Index gradually decreases in the following months, it remains notably high, with values ranging from 10 to 14 from April to November. As the months transition into winter, the index dips but stays within the high to very high range, underscoring the importance of vigilance against sun exposure year-round. For more detailed information on UV levels, visit Antofagasta UV Index.
UV Risk Categories
As December rolls into Antofagasta, residents and visitors bask in an impressive 391 hours of sunshine, marking the peak of the year in terms of sunlit days. This vibrant month beautifully caps off a year that has consistently shown a trend toward increasing sunshine, particularly in the latter half, where each month offers more radiant hours than the last. From the 376 hours enjoyed in November, the transition into December is a delightful leap, contributing to the area's appeal as a sunny escape. With a gradual rise from the sunniest months of October and November, December solidifies Antofagasta's reputation as a sun-drenched destination, offering the perfect backdrop for holiday festivities and outdoor adventures.
In December, Antofagasta, Chile experiences a notable shift in its sunny weather patterns, with a 52% chance of sun. This figure marks a decline from the more promising percentages seen in the peak months of January (75%) and February (78%), suggesting that the region transitions into a less consistently sunny phase as summer approaches its end. Following a pattern of fluctuating sunshine, December's likelihood is slightly lower than the spring and fall months, which generally hover between 57% and 70%. As the year wraps up, residents and visitors can expect a mix of sun and cloud cover, navigating the last month of the year with the understanding that while the sun might not shine as brightly, the beauty of Antofagasta remains ever-present.
In Antofagasta, Chile, December marks the return of longer days, with daylight extending to a vibrant 13 hours. This month, along with January and November, boasts the longest days of the year, creating perfect opportunities for sun-soaked adventures and outdoor activities. As the year progresses from March to May, daylight gradually diminishes from 12 to 10 hours, ushering in the cooler winter months. However, the onset of spring in August signals a gradual increase in daylight once again, culminating in the bask-worthy December. This cyclical pattern reflects Antofagasta's unique blend of seasonal change, ensuring a delightful balance between light and dark throughout the year.
In Antofagasta, Chile, the December wind brings a refreshing 3.5 m/s (8 mph) breeze, mirroring the conditions of both January and October. As the year progresses, it’s evident that there’s a subtle rise in wind speed from the cooler months of June (2.4 m/s) to the more vibrant December. While February through April features gentler winds, the momentum picks up again towards year-end, with November registering a notable 3.6 m/s. This pattern illustrates a slightly more dynamic wind environment as the year closes, setting the stage for invigorating summer days along the coast.
Weather in Antofagasta varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Antofagasta, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Antofagasta range from a minimum of 14°C (58°F) to a maximum of 19°C (67°F), with an average temperature of 17°C (63°F). The month sees minimal precipitation at 8 mm (0.3 in) and experiences no rainy days, accompanied by a humidity level of 78%. In contrast, January brings slightly warmer weather, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 23°C (74°F), averaging 19°C (66°F). Precipitation decreases to 6 mm (0.2 in), and there are still no rainy days, although the humidity increases to 83%. For a more detailed look at January weather, you can check out Antofagasta weather in January.
In December, the weather is mild with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 19°C (67°F), accompanied by low precipitation of only 8 mm (0.3 in) over the month. The average humidity is moderately high at 78%. Comparatively, February experiences warmer conditions, with temperatures starting at a minimum of 15°C (60°F) and peaking at 23°C (73°F). Precipitation is even lighter at just 4 mm (0.2 in) for the month, while humidity increases slightly to 84%. For more detailed information, you can visit Antofagasta weather in February.
In December, the weather is mild with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 19°C (67°F). There's minimal precipitation, measuring just 8 mm (0.3 in) across the month, and humidity levels are relatively comfortable at 78%. In contrast, March sees a slight increase in temperatures, with an average reaching 18°C (65°F) and highs soaring up to 23°C (73°F). Although precipitation increases slightly to 10 mm (0.4 in), it only occurs on one day, and the humidity rises to 84%. For a detailed look at March weather, you can visit Antofagasta weather in March.
In comparing the weather of December and April, both months exhibit mild temperatures, with December enjoying slightly warmer averages ranging from a minimum of 14°C (58°F) to a maximum of 19°C (67°F). Conversely, April sees temperatures ranging from a minimum of 14°C (57°F) to a maximum of 20°C (68°F), resulting in a slightly cooler average. Precipitation levels differ significantly, as December experiences virtually no rain, while April receives 18 mm (0.7 in) spread over 6 rainy days, leading to a higher humidity of 83% compared to December’s 78%. For more detailed insights, you can check out this link: Antofagasta weather in April.
In December, the weather features mild temperatures with a minimum of 14°C (58°F) and an average of 17°C (63°F), reaching a maximum of 19°C (67°F). The month typically experiences very low precipitation, with only 8 mm (0.3 in) recorded over 0 rainy days, and humidity levels hover around 78%. In contrast, May sees slightly cooler temperatures, with a minimum of 12°C (55°F) and an average of 15°C (60°F) that peaks at 20°C (69°F). This month is also wetter, accumulating 18 mm (0.7 in) of rainfall across 7 rainy days, along with a similar humidity level of 80%. For a detailed look at the weather patterns in May, you can explore Antofagasta weather in May.
In December, the weather tends to be mild with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 19°C (67°F). The month experiences relatively low precipitation, with only about 8 mm (0.3 in) and no rainy days, while humidity remains at 78%. In contrast, June brings slightly cooler temperatures, with averages between 12°C (54°F) and 21°C (70°F). This month is wetter, with approximately 17 mm (0.7 in) of rainfall over six days and a similar humidity level of 79%. For more specific details about June weather, you can check out Antofagasta weather in June.
In December, Antofagasta enjoys slightly warmer temperatures with daily averages around 17°C (63°F) and maximums reaching 19°C (67°F), while July presents a cooler climate with an average of 14°C (57°F) and similar peak temperatures of 19°C (66°F). Precipitation in December is minimal, with only 8 mm and no rainy days, contrasting with July's wetter conditions, which receive 19 mm of rain over approximately 7 days. Humidity levels are quite similar, hovering around 78% in December and slightly lower at 77% in July. For more details on July weather specifics, check out Antofagasta weather in July.
When comparing the weather in December and August, December tends to be slightly warmer, with an average temperature of 17°C (63°F) as opposed to August's 14°C (57°F). Both months share a maximum temperature of 19°C (67°F), but December benefits from less precipitation, receiving only 8 mm (0.3 in) compared to August's 13 mm (0.5 in) over four rainy days. Additionally, humidity levels are relatively similar, with December at 78% and August at 75%. For more detailed information, check out Antofagasta weather in August.
In comparing the weather of December and September, December generally presents milder temperatures, with average highs reaching around 19°C (67°F) compared to September's maximum of 17°C (63°F). While both months exhibit relatively high humidity, December's 78% shows a slight increase over September's 77%. Additionally, December typically enjoys a drier climate, with no recorded precipitation, whereas September sees about 15 mm (0.6 in) of rain over four days. For a detailed look at September's weather conditions, visit Antofagasta weather in September.
December's weather is generally milder than October's, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 19°C (67°F), compared to October's range of 12°C (53°F) to 17°C (63°F). Additionally, December experiences significantly less precipitation, totaling only 8 mm (0.3 in) over zero days, while October sees a slightly higher amount of rainfall at 12 mm (0.5 in) across two days. Both months maintain similar humidity levels, with December at 78% and October at 77%. For a more detailed look at October’s weather, check out Antofagasta weather in October.
In comparing the weather between November and December, December tends to be slightly warmer, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 19°C (67°F). In contrast, November has a lower average, with temperatures from a minimum of 13°C (56°F) to a maximum of 19°C (66°F). Precipitation is also less frequent in December, recording only 8 mm (0.3 in) with no rainy days, while November sees a bit more rain at 11 mm (0.4 in) over one day. Humidity levels are quite similar in both months, with December at 78% and November at 79%. For more detailed insights, you can check Antofagasta weather in November.
December in Antofagasta marks a delightful shift in weather, offering milder temperatures ideal for outdoor activities. With an average temperature of 17°C (63°F), the city experiences pleasant daytime warmth coupled with cool evenings, making it a perfect time to explore its stunning coastal scenery. Notably, the month sees virtually no rainfall, with only 8 mm recorded across zero precipitation days, ensuring sunny skies for most of the month. This contrasts sharply with the wetter months preceding and following December, making it a preferred time for locals and travelers alike to enjoy the region's unique charm. For more detailed insights on seasonal trends, visit Antofagasta Climate.