December Weather in Tacna, Peru

Last updated: August 27, 2025

In December, Tacna, Peru experiences a delightful warm climate characterized by maximum temperatures reaching up to 27°C (81°F). The average temperature hovers around a comfortable 19°C (67°F), while the minimum dips to a cool 13°C (56°F). This month sees an average precipitation of 11 mm (0.4 in), with rain occurring on approximately 3 days, contributing to a humid atmosphere with humidity levels around 85%. Overall, December offers a pleasant blend of warm days and refreshing evenings, making it an inviting time to explore the region.

December Temperature in Tacna

In December, Tacna, Peru experiences a delightful transition as temperatures begin to rise toward the end of the year. With minimums around 13°C (56°F) and averages resting at 19°C (67°F), the days feel pleasantly warm, while maximums peak at 27°C (81°F), hinting at the lively summer ahead. This month marks a subtle shift from the cooler winter months, as the region's weather settles into a comfortable rhythm that encourages outdoor adventures and festive gatherings. Overall, December in Tacna offers a vibrant climate that beckons both locals and visitors to embrace the cheerful spirit of the season.

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

The chart illustrates December temperature patterns in Tacna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tacna, 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).
JanFebMarAprMayJunJulAugSepOctNovDec696968666462616162636567
Data source: Temperature data for Tacna 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 Tacna

December in Tacna, Peru, brings modest precipitation, with an average of 11 mm (0.4 in) spread over three days. As the year approaches its end, this slight uptick in rainfall marks a gentle transition from the drier months of November and October, which record virtually no precipitation. Interestingly, while January typically experiences the highest rainfall at 48 mm (1.9 in) across 11 days, December's totals suggest a gradual winding down of the rainy season. This seasonal trend underscores Tacna's predominantly arid climate, where even December offers only a subtle reminder of the previous rainfall peaks.

December Precipitation Trends in Tacna

The chart displays monthly precipitation patterns in Tacna, 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 Tacna, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec493521617191917169611
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tacna

In Tacna, Peru, December sees humidity levels at 85%, gradually tapering off from the higher figures recorded in the preceding months. This slight decrease follows a trend observed throughout the year, where humidity peaks in early months, hitting 90% from January through April. As the year progresses, a steady decline ensues, with levels dropping to 82% by August before stabilizing around 87% in the late fall. The transition into December marks a subtle shift towards a drier season, suggesting a refreshing change as the city closes the year. This consistent pattern highlights Tacna's unique climate, where humidity remains relatively high but exhibits predictable fluctuations.

December Average Humidity in Tacna

This chart illustrates the average monthly humidity levels in Tacna, 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 Tacna is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%88%86%83%82%83%87%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tacna

In Tacna, Peru, the UV Index in December reaches a sizzling 16, maintaining its position in the extreme exposure category, with a rapid burn time of just 10 minutes. This trend reflects the region's consistent exposure to high UV levels throughout the year, particularly from January to November, where the index hovers between 14 and 16. Interestingly, as the months progress from May to July, there’s a slight dip to very high values, but it quickly rebounds to extreme levels, showcasing the intensity of the sun in this area. As such, residents and visitors alike should be vigilant and take protective measures throughout the year. For more detailed information, check out the Tacna UV Index.

Maximum UV Index Levels in Tacna for December

The chart shows the monthly maximum UV Index (UVI) for Tacna 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 Tacna typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1616141210891113151616
Data source: Tacna 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 Tacna

In Tacna, Peru, December shines brightly with an impressive 365 hours of sunshine, marking the peak of an upward trend in daylight hours throughout the latter part of the year. After a steady increase from 277 hours in January to 364 hours in November, the region reaches its sunniest month, showcasing the transition from spring to summer. This consistent escalation not only highlights Tacna's beautiful climate but also invites residents and visitors alike to enjoy the vibrant outdoor activities that flourish under the warmth of its abundant sunshine. With each passing month, the growing light serves as a reminder of the idyllic summer days ahead, making Tacna a perfect destination for sun-seekers in December.

Monthly Sunshine Duration in Tacna: December Highlighted

The December sunshine duration represents the total number of hours Tacna 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.
JanFebMarAprMayJunJulAugSepOctNovDec277h302h334h328h333h315h332h342h346h368h364h365h
Data source: Tacna December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tacna During December

In Tacna, Peru, the likelihood of sunny weather takes a notable dip in December, with only a 16% chance of sunshine. This decline contrasts sharply with the preceding months, where the chances of clear skies often exceed 30%, peaking at 56% in October. As we progress from January through November, there's a general upward trajectory in sunshine probabilities, especially from mid-year when July and August boast over 50%. However, December marks a significant shift as the region transitions into the rainy season, making it one of the cloudiest months of the year. Therefore, while sunshine seekers may find brighter days in the earlier months, they should prepare for a more subdued sky come December.

Percentage of Sunny Days in December in Tacna

The chart illustrates the percentage of sunny days in Tacna 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 Tacna experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%32%27%42%41%40%53%50%43%56%31%16%
Data source: Tacna December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tacna in December

In Tacna, Peru, December marks a delightful transition as the region enjoys 13 hours of daylight, mirroring the long days of January. This brightened atmosphere is a refreshing end to the year, following months of gradually diminishing light from March to August, where daylight consistently measured 11 hours. The return to longer days in October and November hints at the approaching summer, culminating in December's peak. This pattern reveals a clear rhythm of daylight that not only enhances the sun-soaked days but also sets the stage for idyllic holiday celebrations under Tacna's vibrant sky.

Average Daylight Hours in Tacna for December

The chart illustrates the variation in daylight duration in Tacna throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 3m12h 39m12h 9m11h 39m11h 14m11h 3m11h 9m11h 30m11h 59m12h 30m12h 57m13h 10m
Data source: Tacna daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Tacna

In Tacna, Peru, December marks a subtle shift in the wind's embrace, with average speeds rising to 2.3 m/s (5 mph). This gentle increase mirrors the steady pattern observed throughout the year, where winds gradually decrease from January's peak before stabilizing across the warmer months. As the year comes to a close, the refreshing gusts of December offer a crisp reminder of nature's rhythm—a light breeze that fills the air with a sense of renewal and anticipation for the new beginnings that the coming year will bring.

Average December Wind Speed in Tacna

The chart displays monthly wind speed patterns in Tacna, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.22.12.11.91.91.81.92.02.22.22.3 m/s
Data source: Tacna December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Tacna Compares to Other Months

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

In December, the weather in Tacna is warm with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (81°F). The month sees relatively low precipitation, with just 11 mm (0.4 in) over about 3 days and humidity levels around 85%.

In contrast, January experiences slightly warmer temperatures, with a minimum of 15°C (59°F) and an average of 20°C (69°F), while still reaching up to 27°C (81°F). However, it is significantly wetter, receiving 48 mm (1.9 in) of rainfall across 11 days and higher humidity at 89%. For more detailed insights, you can check Tacna weather in January.

In December, the weather is typically warm and dry, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (81°F) and averaging around 19°C (67°F). With only about 11 mm (0.4 in) of precipitation spread over just 3 days, humidity is relatively high at 85%. In contrast, February presents a slightly warmer climate, with minimum temperatures around 15°C (58°F) and a comfortable average of 21°C (70°F) that peaks at 28°C (82°F). However, February experiences increased rainfall, totaling 35 mm (1.4 in) over 10 days, resulting in a higher humidity level of 90%. For a more detailed look at February weather, visit Tacna weather in February.

In December, Tacna experiences mild weather with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (81°F), while the humidity sits at a comfortable 85%. The month sees relatively low precipitation, averaging only 11 mm (0.4 in) over about 3 days. Conversely, March presents slightly warmer conditions, with minimum temperatures at 14°C (58°F) and an average of 20°C (69°F), maintaining a similar maximum of 27°C (82°F). However, March is marked by increased rainfall, totaling 21 mm (0.8 in) over approximately 6 days, and with humidity rising to 90%. For more detailed information, you can check Tacna weather in March.

In December, the weather is generally warm with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (81°F), along with an average temperature of 19°C (67°F). The month experiences occasional rain, with about 11 mm (0.4 in) of precipitation over three days, and the humidity remains relatively high at 85%. In contrast, April features slightly warmer nights, with a minimum temperature of 14°C (57°F) and a similar average of 19°C (67°F). However, April is drier, boasting only 6 mm (0.2 in) of precipitation and no rainy days, though the humidity rises slightly to 90%. For more details, you can refer to Tacna weather in April.

In December, the weather features warm temperatures that range from a minimum of 13°C (56°F) to a maximum of 27°C (81°F), with an average of 19°C (67°F) and relatively low precipitation of 11 mm (0.4 in) over 3 days. Humidity levels are moderately high at 85%. In contrast, May offers slightly cooler temperatures, with a minimum of 13°C (55°F) and a maximum of 26°C (78°F), and an average of 18°C (65°F). However, it sees more rain compared to December, totaling 17 mm (0.7 in) but with only 1 day of precipitation. The humidity in May is a bit higher at 88%. For more detailed insights into the weather in May, you can check Tacna weather in May.

In December, the weather is generally warmer with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (81°F) and an average of 19°C (67°F). The month experiences relatively low precipitation at 11 mm (0.4 in) over three days, coupled with high humidity at 85%. In contrast, June tends to be slightly cooler, with temperatures ranging from 11°C (52°F) to 24°C (75°F) and an average of 17°C (63°F). Although June sees a bit more precipitation at 19 mm (0.7 in) over just two days, the humidity remains quite high at 86%. For a more detailed look at weather conditions in June, check out Tacna weather in June.

December and July present notably different weather patterns. In December, temperatures range from a minimum of 13°C (56°F) to a maximum of 27°C (81°F), with an average temperature of 19°C (67°F). The month sees limited precipitation, totaling 11 mm (0.4 in) over three days, and maintains a high humidity level of 85%. In contrast, July experiences slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 28°C (83°F), averaging 16°C (61°F). Although July has slightly more precipitation at 19 mm (0.7 in) over just two days, humidity is slightly lower at 83%. For a deeper dive into July weather conditions, visit Tacna weather in July.

When comparing the weather in December and August, December typically enjoys warmer temperatures, with a minimum of 13°C (56°F), an average of 19°C (67°F), and a maximum of 27°C (81°F). In contrast, August is cooler, with minimums of 11°C (52°F), average temperatures around 16°C (62°F), and maximums of only 24°C (75°F). Additionally, December has slightly more precipitation at 11 mm (0.4 in) over three days, while August sees 17 mm (0.7 in) but only during one day. Both months exhibit high humidity, with December at 85% and August at 82%. For more detailed information, you can check Tacna weather in August.

December weather in Tacna features warmer temperatures, with a minimum of 13°C (56°F) and a maximum of 27°C (81°F), compared to the cooler September temperatures, which range from 11°C (52°F) to 25°C (77°F). While both months experience relatively high humidity, December is slightly more humid at 85% compared to September's 83%. Additionally, December has a bit more precipitation, with 11 mm (0.4 in) over three days, while September records 16 mm (0.6 in) but only over one day. For more details on September weather, you can visit Tacna weather in September.

In December, the weather features slightly warmer temperatures compared to October, with a minimum of 13°C (56°F) and an average of 19°C (67°F). In contrast, October has a slightly lower average temperature of 17°C (64°F), with a minimum of 12°C (54°F). While both months experience low precipitation, December sees a bit more rain at 11 mm (0.4 in) over three days, whereas October remains dry with 9 mm (0.4 in) but no rainy days. Humidity levels are quite similar, with December at 85% and October at 87%. Overall, December offers warmer temperatures and a touch of moisture compared to the relatively cooler and drier October. For more details, you can check Tacna weather in October.

In comparing the weather between November and December, we see only slight differences in temperature and precipitation. December enjoys a slightly warmer range with minimum temperatures of 13°C (56°F) and an average of 19°C (67°F), compared to November's minimum of 12°C (54°F) and an average of 18°C (65°F). While both months have a similar maximum temperature, December experiences marginally higher levels with a peak of 27°C (81°F) against November’s 26°C (79°F). Additionally, December sees a bit more precipitation, totaling 11 mm (0.4 in) over three days, while November has minimal rainfall of just 6 mm (0.2 in) without any rain days. Humidity levels are comparable, with December's at 85% and November's at 87%. For more detailed information on November weather, you can visit Tacna weather in November.

Compare Tacna's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Tacna

As December unfolds in Tacna, the weather showcases a vibrant shift, characterized by warmer temperatures and a touch of increased humidity compared to the earlier months. While the maximum highs reach a pleasant 27°C (81°F), the overall average remains a comfortable 19°C (67°F), making it an ideal time for outdoor activities. Though rain is scarce, with only a few days of light precipitation contributing to a total of 11 mm (0.4 in), this month brings a refreshing change from the comparatively drier preceding months. For those interested in a deeper dive into Tacna's overall climate patterns, visit Tacna Climate.