December Weather in Ayacucho, Argentina

Last updated: August 21, 2025

In Ayacucho, Argentina, December ushers in a blend of warm temperatures and vibrant weather patterns. With maximum highs reaching 36°C (97°F), the month boasts a comfortable average of 20°C (68°F), while nighttime dips can drop to a cool 4°C (39°F). Although precipitation is relatively moderate at 67 mm (2.6 in), rain graces the region on 9 days, contributing to an overall humidity of 61% that adds to the refreshing atmosphere. This dynamic climate makes December a captivating time to experience the natural beauty and local culture of Ayacucho.

December Temperature in Ayacucho

In December, Ayacucho, Argentina, experiences a delightful segue into summer, with temperatures gradually climbing as the month progresses. With a minimum of 4°C (39°F), nights are cool yet crisp, offering a refreshing contrast to the daytime warmth. By day, the average temperature reaches a comfortable 20°C (68°F), ideal for outdoor activities, while the maximum can soar to 36°C (97°F), inviting sun seekers to bask in the warmth. This pattern marks a clear transition from the cooler months of late spring, as December signals the start of the warmer season, making Ayacucho a vibrant destination for those seeking both comfort and adventure during the festive holiday season.

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

The chart illustrates December temperature patterns in Ayacucho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ayacucho, 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).
JanFebMarAprMayJunJulAugSepOctNovDec716965605348464952576368
Data source: Temperature data for Ayacucho generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Ayacucho

December in Ayacucho, Argentina, brings a moderate precipitation amount of 67 mm (2.6 in), accumulating over 9 rainy days. As the final month of the year, it showcases a slight decrease from the wetter seasons preceding it, yet still maintains a robust rainfall pattern typical of the region's summer. The month reflects a gradual transition from the more substantial downpours seen in April (109 mm) and November (70 mm), hinting at seasonal fluctuations. Despite being less than some earlier months, December's precipitation is important for replenishing local water sources before the drier months set in, ensuring that the vibrant landscape of Ayacucho remains lush and alive as it rounds off the year.

December Precipitation Trends in Ayacucho

The chart displays monthly precipitation patterns in Ayacucho, 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 Ayacucho, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5882821094751543374757067
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Ayacucho

In Ayacucho, Argentina, December marks a notable shift in humidity as it drops to 61%, providing a refreshing break from the higher levels experienced earlier in the year. The trend reveals a steady increase in humidity from 59% in January, peaking at an annual high of 86% in May. Following this peak, the humidity begins to gradually decrease, showing a clear pattern of summer's moisture giving way to a drier season. Despite the decline, December's humidity remains comfortably moderate when compared to the month's extreme lows, creating a pleasant atmosphere for both residents and visitors alike.

December Average Humidity in Ayacucho

This chart illustrates the average monthly humidity levels in Ayacucho, 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 Ayacucho is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%70%73%83%86%81%73%69%76%69%66%61%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ayacucho

In December, Ayacucho, Argentina, experiences one of its peak UV Index levels, soaring to an extreme 14. This aligns with the trend seen in January and November, where similar high values pose a considerable risk for sunburn, allowing only 10 minutes of unprotected exposure before damage occurs. Following a gradual descent from the blistering highs earlier in the year, the months of April to October reflect a decrease in UV intensity, transitioning from high to moderate exposure categories. As summer approaches, vigilance is essential for outdoor enthusiasts; checking the Ayacucho UV Index can help ensure safe sun practices.

Maximum UV Index Levels in Ayacucho for December

The chart shows the monthly maximum UV Index (UVI) for Ayacucho 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 Ayacucho typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141210743357101314
Data source: Ayacucho 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 Ayacucho

In Ayacucho, Argentina, December shines the brightest with 375 hours of sunlight, marking it as the sunniest month of the year. This remarkable increase in daylight comes on the heels of a steady climb from November's 332 hours, inviting both locals and visitors to bask in warm summer days. As the year draws to a close, December stands out as a clear departure from the cooler, cloudier months preceding it, where sunlight dipped to about 190 hours in June. The trend showcases a delightful summer crescendo, making December not just the end of the year, but a celebration of vibrant sunshine and the beauty of Ayacucho.

Monthly Sunshine Duration in Ayacucho: December Highlighted

The December sunshine duration represents the total number of hours Ayacucho 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.
JanFebMarAprMayJunJulAugSepOctNovDec297h315h299h242h225h190h202h251h249h306h332h375h
Data source: Ayacucho December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ayacucho During December

In Ayacucho, Argentina, December brings a moderate likelihood of sunny weather, with a 54% chance of sunshine throughout the month. This aligns with a trend of fluctuating sunshine probabilities as the year progresses. Following a generally wet winter, where June sees the lowest chance of sun at 36%, conditions begin to improve as spring approaches, peaking in October at an impressive 64%. As the year closes, December’s warmth and improved sunlight offer a pleasant transition, contributing to the area's inviting charm during the festive season. While not the sunniest month, December still provides a solid possibility for enjoying the outdoors under a bright sky.

Percentage of Sunny Days in December in Ayacucho

The chart illustrates the percentage of sunny days in Ayacucho 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 Ayacucho experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec57%53%50%59%49%36%52%53%42%64%52%54%
Data source: Ayacucho December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ayacucho in December

In Ayacucho, Argentina, the rhythm of daylight gracefully shifts throughout the year, with December offering a bright 14 hours of sunshine. As the calendar turns from January to June, daylight slowly recedes, reaching its nadir of just 9 hours in both June and July. However, the return of longer days begins in August, as the sun starts reclaiming its presence. By November and December, residents enjoy the full bounty of 14 hours of daylight once again, mirroring the beginning of the year. This seasonal ebb and flow not only highlights nature's cycles but also sets a vibrant backdrop for the festivities and activities that characterize the summer months in this enchanting region.

Average Daylight Hours in Ayacucho for December

The chart illustrates the variation in daylight duration in Ayacucho throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 21m13h 25m12h 15m11h 4m10h 6m9h 37m9h 53m10h 44m11h 52m13h 3m14h 6m14h 39m
Data source: Ayacucho daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Ayacucho

In December, the winds in Ayacucho, Argentina, shift to a gentler rhythm, with an average speed of 3.4 m/s (8 mph). This month marks a notable dip compared to the slightly brisker winds of November, which peaked at 4.3 m/s (10 mph). As the year draws to a close, December’s winds echo a transition into warmer, more tranquil summer days. Typically, the wind speeds throughout the year have shown a clear pattern of fluctuation, with the months of July and September generally boasting the highest averages, around 4.2 m/s (9 mph). This pattern suggests a lively but varying wind climate, allowing Ayacucho to experience a flavor of refreshing breezes, particularly in the mid-year months, while descending into calmer airs as the festive season approaches.

Average December Wind Speed in Ayacucho

The chart displays monthly wind speed patterns in Ayacucho, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.03.53.64.13.84.23.44.23.74.33.4 m/s
Data source: Ayacucho December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Ayacucho Compares to Other Months

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

In December, temperatures range from a minimum of 4°C (39°F) to a maximum of 36°C (97°F), with an average of 20°C (68°F). The month experiences about 67 mm (2.6 in) of precipitation over 9 days, accompanied by a humidity level of 61%. Conversely, January sees slightly warmer conditions, with minimum temperatures around 6°C (42°F) and maximums reaching up to 40°C (104°F), averaging at 22°C (71°F). Precipitation decreases to 58 mm (2.3 in) over 7 days, while humidity dips slightly to 59%. For more detailed information on January weather in Ayacucho, you can visit Ayacucho weather in January.

December and February present similar warm climates, but with some notable differences. In December, temperatures range from a minimum of 4°C (39°F) to a maximum of 36°C (97°F), resulting in an average temperature of 20°C (68°F). February, on the other hand, sees a slight increase in both minimum and average temperatures, peaking at 5°C (42°F) for minimum and 21°C (69°F) for average, with a maximum of 35°C (94°F). Interestingly, while December experiences 67 mm (2.6 in) of rain over 9 days, February has a higher precipitation level of 82 mm (3.2 in) but over fewer days—just 7. Humidity also increases in February, rising to 70% compared to December’s 61%. For more detailed information, check Ayacucho weather in February.

In December, the weather features warm temperatures, with a minimum of 4°C (39°F), an average of 20°C (68°F), and a maximum reaching 36°C (97°F). This month experiences approximately 67 mm (2.6 in) of precipitation over 9 days, accompanied by a humidity level of 61%. In contrast, March sees slightly cooler temperatures, with a minimum of 4°C (39°F), an average of 18°C (65°F), and a maximum of 32°C (90°F). However, March tends to be wetter, with 82 mm (3.2 in) of precipitation also spread over 9 days, while humidity rises to 72%. For more specifics, you can check Ayacucho weather in March.

When comparing the weather in December and April, December tends to be warmer overall, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 36°C (97°F) and an average of 20°C (68°F). In contrast, April features cooler temperatures, with a minimum of 3°C (38°F), an average of 16°C (61°F), and a maximum of 28°C (83°F). Additionally, April experiences more precipitation, totaling 109 mm (4.3 in) over 7 days, compared to December’s 67 mm (2.6 in) over 9 days. Humidity is also higher in April at 82%, compared to 61% in December. For more detailed insights, you can explore Ayacucho weather in April.

The weather in December is generally warmer, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 36°C (97°F), and an average of 20°C (68°F). It experiences more substantial rainfall, totaling 67 mm (2.6 in) over about 9 days, while maintaining a humidity level of 61%. In contrast, May presents a cooler climate, with temperatures ranging from -2°C (29°F) to 26°C (79°F) and an average of 11°C (53°F). The month sees less rainfall, with a total of 47 mm (1.8 in) over just 6 days, but the humidity is higher at 86%. For more details about weather conditions during May, you can visit Ayacucho weather in May.

December and June present starkly contrasting weather patterns. In December, temperatures typically range from a minimum of 4°C (39°F) to a maximum of 36°C (97°F), with an average of 20°C (68°F). The month experiences about 67 mm (2.6 in) of precipitation over approximately 9 days, accompanied by a humidity level of 61%. In contrast, June is notably cooler, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 21°C (70°F) and an average of 9°C (49°F). Precipitation in June totals around 51 mm (2.0 in) spread over just 5 days, and the humidity rises to a higher 81%. For a deeper look into the specifics of June weather, you can visit Ayacucho weather in June.

In comparing the weather between December and July, December generally offers much warmer temperatures, with a minimum of 4°C (39°F) and an average of 20°C (68°F), reaching a maximum of 36°C (97°F). In contrast, July experiences much cooler conditions, with temperatures ranging from a frigid -4°C (25°F) to a maximum of 21°C (69°F) and an average of 8°C (47°F). While both months see precipitation, December has slightly higher rainfall at 67 mm (2.6 in) over 9 days, compared to July’s 54 mm (2.1 in) over just 7 days. Additionally, July exhibits higher humidity levels at 73%, compared to 61% in December. For a more detailed look at July's weather conditions, you can visit Ayacucho weather in July.

December and August present contrasting weather patterns. In December, the temperatures range from a minimum of 4°C (39°F) to a maximum of 36°C (97°F), with an average of 20°C (68°F). This month boasts higher humidity at 61% and experiences more precipitation, totaling 67 mm (2.6 in) over approximately 9 days. In comparison, August is much cooler, with temperatures ranging from -3°C (26°F) to 25°C (76°F) and an average of 9°C (49°F). It is drier, with only 33 mm (1.3 in) of rain falling over 5 days and a slightly higher humidity level at 69%. For a detailed look at August weather, you can visit Ayacucho weather in August.

December and September present contrasting weather patterns in Ayacucho. December experiences warmer temperatures with a minimum of 4°C (39°F) and an average of 20°C (68°F), peaking at 36°C (97°F). It also has 67 mm (2.6 in) of rainfall over about 9 days, with humidity averaging 61%. In contrast, September is cooler, featuring a minimum of -3°C (27°F) and an average of 11°C (53°F), with a maximum of 27°C (81°F). It sees slightly higher precipitation at 74 mm (2.9 in) across 6 days but has higher humidity at 76%. For a more detailed overview, you can refer to Ayacucho weather in September.

When comparing the weather in December and October, December generally experiences warmer temperatures with a minimum of 4°C (39°F) and an average of 20°C (68°F), peaking at 36°C (97°F), while October has a cooler minimum of -1°C (31°F) and an average of 14°C (57°F), reaching a maximum of 33°C (92°F). In terms of precipitation, December sees 67 mm (2.6 in) falling over 9 days, whereas October has slightly higher precipitation at 75 mm (3.0 in) across 7 days. Humidity levels are also distinct, with December at 61% and October slightly higher at 69%. For more detailed information, you can check Ayacucho weather in October.

When comparing the weather in December to that of November, December experiences slightly warmer temperatures, with minimums at 4°C (39°F) and averages reaching 20°C (68°F), compared to November's minimum of 3°C (38°F) and an average of 17°C (63°F). The maximum temperatures also increase in December, peaking at 36°C (97°F), while November tops out at 33°C (92°F). Precipitation levels remain relatively similar, with December recording 67 mm (2.6 in) over 9 days, compared to November's 70 mm (2.8 in) over 8 days. Humidity is slightly lower in December at 61%, in contrast to November's 66%. For more detailed information, you can check Ayacucho weather in November.

Compare Ayacucho's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Ayacucho

December in Ayacucho brings a vibrant shift in weather, showcasing a blend of warm temperatures and increased humidity. With maximums soaring to 36°C (97°F), the month stands out from the cooler autumn and winter months, inviting both locals and visitors to enjoy the sun. However, amid the heat, a touch of rain isn’t uncommon, with nearly a third of the month experiencing precipitation. This combination fosters a backdrop of lush greenery and a lively atmosphere, making December a unique time to experience Ayacucho’s charm. For a comprehensive look at how December fits into the broader Ayacucho Climate, visit Ayacucho Climate.