Last updated: August 21, 2025
December in Arica, Chile offers a delightful blend of warm temperatures and refreshing coastal breezes. With maximum highs reaching 27°C (80°F) and an inviting average of 20°C (69°F), visitors can bask in sunny days ideal for exploration. Nighttime brings cooler air, cooling down to a pleasant 15°C (59°F). This month typically sees a light drizzle, with only 11 mm (0.5 in) of rain over just one day, making it perfect for sun-seekers. Combined with an 85% humidity, the climate remains comfortable, inviting travelers to enjoy all that this vibrant coastal city has to offer.
In December, temperatures in Arica, Chile begin to warm noticeably as summer approaches, with minimums around 15°C (59°F) and average highs reaching 27°C (80°F). This represents a transition from the milder temperatures of the previous months, with December's average resting comfortably at 20°C (69°F). It's a time where visitors can enjoy the pleasant warmth of the sun, perfect for beach outings and outdoor explorations. Compared to the cooler temperatures of November, which averaged 19°C (66°F), December brings a notable boost in warmth, ushering in a lively atmosphere as the region embraces the sunny days of summer.
In Arica, Chile, December wraps up the year with a modest precipitation total of 11 mm (0.5 in), a slight increase from November’s dry spell, which recorded no rainfall. This drop in moisture marks a notable trend as Arica transitions from its wetter months during mid-year to a drier spell. With precipitation occurring on just one day, the dry climate remains a defining characteristic of December. As the year progresses, the rainfall typically sees a dip starting from August, culminating in these arid final months, where December's light showers signal a temporary reprieve before the rainfall takes a backseat in the dry summer ahead.
In December, Arica, Chile experiences a humidity level of 85%, which marks a subtle yet notable decline from the consistently high figures of the previous months. As the year unfolds, humidity reaches its peak in the earlier summer months, with January and February showcasing elevated levels of 89% and 90%, respectively. Following this, the humidity stabilizes around 90% through to April, before gradually tapering off as the cooler months arrive. This trend reflects a shift from the intense moisture of the summer season to the more temperate conditions of winter, making December a transitional month where the humidity begins to ease, yet remains comfortably high. Overall, the gradual decrease in humidity underscores Arica's unique climate, where dry conditions eventually prevail after the vibrant, humid summer.
In Arica, Chile, the December UV Index peaks at an extreme level of 15, matching its intensity from the previous two months. This trend underscores a consistent pattern of high UV exposure throughout the end of the year, with burn times remaining critically low at just 10 minutes. From January through March, the UV Index stays at a staggering 15, gradually tapering to 12 in April before dropping to a still high 9 in May. This indicates that as the sun's intensity wanes slightly, it still demands vigilance. By late spring and into summer, UV levels rise back to extreme ranges, highlighting the importance of sun protection. For those planning outdoor activities or travel, understanding these trends is essential for safety. For further information on safe sun exposure, visit Arica UV Index.
UV Risk Categories
As December rolls in, Arica, Chile basks in a glorious 369 hours of sunshine, marking a delightful end to the year. This trend of abundant sunlight peaks during the last month, following a steady increase from 285 hours in January to 369 hours in December. The city benefits from a gradual ascent in daylight, revealing a remarkable pattern where each month consistently outshines the previous one, especially notable between October and December. With its crisp, clear skies and inviting warmth, December in Arica not only promises a vibrant holiday season but also cements its reputation as an ideal sunny escape during the southern summer months.
In Arica, Chile, the chances of enjoying sunny weather in December are notably lower, with a mere 15% likelihood of sunshine. This decline continues a trend observed throughout the year, where the sunny days gradually decrease from 30% in October to this year's low. The sunny disposition of January (29%) and February (36%) sets a high benchmark, but as winter approaches, the likelihood of clear skies diminishes significantly, reaching its nadir in June with just 18%. Overall, December feels the chill of impending winter, reminding visitors that while Arica is famed for its sunshine, the last month of the year is among the cloudier times.
In Arica, Chile, December marks a delightful peak in daylight duration, offering an impressive 13 hours of sunshine. Following this trend, January also enjoys the same generous amount of daylight, making these months ideal for outdoor activities and beach visits. As the year progresses into February and March, daylight gradually wanes to 12 hours, signaling the start of a subtle shift toward the shorter days of autumn. From April through September, daylight remains consistent at 11 hours, providing a stable environment for both locals and visitors alike. However, as October and November return to longer days with 12 hours each, December stands out as a vibrant reminder of the sun's return, perfectly framing Arica's sunny charm during the southern summer.
As December rolls into Arica, Chile, the coastal breeze maintains a steady pace of 2.6 m/s (6 mph), mirroring the gentle winds observed in the preceding months. This consistency marks a slight uptick from earlier in the year, where wind speeds fluctuated between 2.3 and 2.5 m/s. The transition from late spring to early summer brings a sense of comfort, with December’s unwavering winds complementing the warm climate. It's a prime time for outdoor enthusiasts to enjoy the harmonious blend of sun and breeze, signaling a delightful culmination to the year in this beautiful coastal city.
Weather in Arica varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Arica, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is characterized by a mild temperature range, with minimums around 15°C (59°F) and average highs of 27°C (80°F), accompanied by low precipitation at just 11 mm (0.5 in) over a single day. Humidity levels stand at 85%, adding a touch of moisture to the air. In contrast, January sees a slight increase in temperatures, with minimums rising to 17°C (63°F) and average highs reaching 28°C (83°F). However, this month experiences more rainfall, totaling 18 mm (0.7 in) over five days, with humidity slightly higher at 89%. For more detailed insights, you can check Arica weather in January.
December weather in Arica is generally pleasant, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F). The month experiences relatively low precipitation, averaging only 11 mm (0.5 in) over just one day, and humidity levels are moderate at 85%.
In contrast, February is slightly warmer, with temperatures starting at a minimum of 17°C (63°F) and reaching up to 29°C (84°F) on average. This month sees increased precipitation at 16 mm (0.6 in) over three days and exhibits slightly higher humidity at 90%. The overall climate in February is warmer and a bit more humid compared to December, making it a vibrant time of year. For more detailed information, visit Arica weather in February.
In December, the weather features mild temperatures with a minimum of 15°C (59°F), averaging around 20°C (69°F), and reaching a maximum of 27°C (80°F). The month sees minimal rainfall, with only 11 mm (0.5 in) over just 1 day and humidity levels at 85%. In contrast, March experiences slightly warmer temperatures, starting from a minimum of 16°C (61°F), averaging 22°C (72°F), and peaking at 29°C (84°F). Rainfall in March is also low at 5 mm (0.2 in) over 1 day, but humidity increases to 90%. For more details on March weather, you can visit Arica weather in March.
In comparing the weather of December and April, both months exhibit similar temperature ranges, with average temperatures around 20°C (68°F) and maximums peaking at 27°C (81°F). December tends to be slightly warmer at night with a minimum temperature of 15°C (59°F), compared to April’s 14°C (57°F). Rainfall is minimal in both months; however, April sees a bit more precipitation, averaging 12 mm (0.5 in) over 2 days, while December records 11 mm (0.5 in) over just 1 day. Humidity is higher in April, at 90%, compared to December’s 85%. For a detailed look at April's weather, visit Arica weather in April.
In December, the weather is generally warmer, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F) and an average of 20°C (69°F). The month sees minimal precipitation, with only 11 mm (0.5 in) over just one day and a relative humidity of 85%. In contrast, May experiences slightly cooler temperatures, with a minimum of 14°C (57°F) and a maximum of 26°C (79°F), averaging 18°C (65°F). However, May is marked by significantly higher rainfall, totaling 37 mm (1.5 in) spread over 18 days, along with slightly higher humidity at 88%. For more detailed insights, you can check out Arica weather in May.
In December, the weather is typically warmer, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F) and an average of 20°C (69°F). This month sees relatively low precipitation, averaging just 11 mm (0.5 in) over one day, along with high humidity at 85%. In contrast, June experiences cooler temperatures, with a minimum of 11°C (53°F), an average of 17°C (62°F), and a maximum of 22°C (72°F). However, June is considerably wetter, with 49 mm (1.9 in) of rainfall spread over 24 days, and humidity remains high at 86%. For more details on the June weather specifics, you can check Arica weather in June.
In December, the weather is generally warmer, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F). The humidity is slightly higher at 85%, but rainfall is minimal, averaging only 11 mm (0.5 in) over just one day. In contrast, July experiences cooler temperatures, with averages between 11°C (52°F) and 28°C (83°F), though it peaks at the same maximum as December. The month is significantly wetter, with a total of 43 mm (1.7 in) of precipitation spread over 23 days, leading to a much more humid environment at 83%. For further details on July weather, check out Arica weather in July.
In comparing the weather between December and August, December enjoys relatively warmer temperatures, with a minimum of 15°C (59°F) and an average of 20°C (69°F), peaking at 27°C (80°F). This month also experiences significantly lower precipitation, averaging only 11 mm (0.5 in) over just 1 day, despite the higher humidity of 85%. In contrast, August brings cooler conditions, where temperatures range from a minimum of 11°C (53°F) to an average of 16°C (60°F), with a maximum of 21°C (69°F). Additionally, August is much wetter, receiving 38 mm (1.5 in) of rainfall over 19 days, with humidity slightly lower at 82%. For more details about the weather during this month, check out Arica weather in August.
In December, the weather is noticeably warmer than in September, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F) and an average of 20°C (69°F). In contrast, September experiences cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 22°C (72°F), averaging 16°C (61°F). Additionally, December sees significantly less precipitation, with only 11 mm (0.5 in) over just one day, while September has more considerable rainfall, totaling 31 mm (1.2 in) spread over 13 days. Humidity levels are quite similar, remaining at 85% in December and 83% in September. For a more detailed look at September's weather, you can refer to Arica weather in September.
In comparing the weather of December and October, December tends to be warmer and drier. With temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F), the average temperature in December is 20°C (69°F). In contrast, October experiences slightly cooler temperatures, with a minimum of 12°C (54°F) and a maximum of 24°C (76°F), averaging 17°C (63°F). Precipitation is also less in December, with only 11 mm (0.5 in) over 1 day, compared to October's 19 mm (0.8 in) falling over 4 days. Humidity remains relatively high in both months, with December at 85% and October at 87%. For more details, you can check Arica weather in October.
In comparing the weather between December and November, December tends to be slightly warmer with an average temperature of 20°C (69°F) compared to November's 19°C (66°F). The minimum and maximum temperatures also reflect this trend, with December reaching a maximum of 27°C (80°F) versus November's 25°C (78°F). Precipitation is relatively low in both months, but December sees a slight increase with 11 mm (0.5 in) over one rainy day, while November records only 9 mm (0.4 in) without any rainy days. Humidity levels remain fairly consistent, with December at 85% and November at 87%. For more details on November weather, you can visit Arica weather in November.
In December, Arica experiences a delightful transition into summer, marked by warmer temperatures and a hint of holiday cheer. With maximums peaking at 27°C and an average of 20°C, the month stands out as one of the most pleasant times to visit. Unlike the rest of the year, December boasts significantly lower precipitation, with just a single day of rain—a refreshing change from the wetter months that precede it. Combined with humidity levels at 85%, the weather invites you to explore the vibrant coastal city while enjoying its stunning surroundings. This enchanting time is perfect for outdoor activities and soaking up the sun, making Arica a wonderful destination for seasonal travelers. For a deeper dive into the weather patterns throughout the year, check out Arica Climate.