December Weather in Cajamarca, Peru

Last updated: August 27, 2025

In Cajamarca, Peru, December brings a mix of mild temperatures and notable rainfall, making it a distinctive time of year. Daily maximums reach 21°C (70°F), while nighttime temperatures can drop to a chilly 3°C (38°F), resulting in an average of 12°C (54°F). The region experiences significant precipitation, totaling 413 mm (16.2 in) across approximately 26 rainy days, contributing to the high humidity level of 82%. This cocktail of weather conditions shapes a lush and vibrant landscape, inviting exploration of Cajamarca's stunning natural beauty during the wet season.

December Temperature in Cajamarca

In Cajamarca, Peru, December ushers in a mild climate characterized by a consistent average temperature of 12°C (54°F). As the year draws to a close, the minimum temperature settles at 3°C (38°F), while the maximum reaches a comfortable 21°C (70°F), mirroring the warmest trends observed in the preceding months. This balance of cooler nights and pleasantly warm days reflects a broader pattern of stable temperatures throughout the year, with only slight fluctuations. The gentle transition into summer heralds a season of vibrant life and activity, making December an ideal time to explore the enchanting landscapes of Cajamarca.

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

The chart illustrates December temperature patterns in Cajamarca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cajamarca, 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).
JanFebMarAprMayJunJulAugSepOctNovDec545453545454545454545454
Data source: Temperature data for Cajamarca 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 Cajamarca

In December, Cajamarca experiences a significant uptick in precipitation, recording 413 mm (16.2 in) of rainfall across 26 days. This marks a continuation of the wet season, showcasing the region's transition from the drier months of mid-year. Notably, December's rainfall is a crucial part of the yearly cycle, as it often contributes to a cumulative increase from the preceding months. In comparison to November's 290 mm (11.4 in), December sees a clear escalation, underscoring the late-year surge in moisture. As the rainy pattern intensifies, the lush landscapes of Cajamarca emerge, reflecting the region's vibrant biodiversity and agricultural productivity, while the rhythmic sound of rain nurtures a sense of renewal.

December Precipitation Trends in Cajamarca

The chart displays monthly precipitation patterns in Cajamarca, 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 Cajamarca, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec304392599349189704348154299290413
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Cajamarca

In Cajamarca, Peru, December brings a humidity level of 82%, signaling a transition back towards the wetness characteristic of the earlier months of the year. As we examine the climate trends, it's evident that humidity peaks in March at 88%, gradually descending to a low of 38% in August. This fluctuation illustrates a distinct seasonal rhythm, where the dry months of July and August offer relief from moisture, before moisture levels rise again in November and December. The year concludes with a return to relatively high humidity, hinting at the onset of the rainy season, making Cajamarca a vibrant and lush destination as it embraces the final month of the year.

December Average Humidity in Cajamarca

This chart illustrates the average monthly humidity levels in Cajamarca, 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 Cajamarca is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%88%85%78%62%44%38%42%58%69%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cajamarca

In Cajamarca, Peru, the month of December maintains a UV Index of 16, placing it firmly in the extreme exposure category with a consistent burn time of just 10 minutes. As the year draws to a close, the UV Index trends reveal a dynamic pattern: from a peak of 19 in March to a more moderate yet still high index throughout the latter months. Notably, the months leading up to December, including October and November, show similar values at 18 and 16, respectively, illustrating a slight decline but still highlighting the necessity for sun protection. With the sun's intensity remaining uncompromising, locals and visitors alike should stay vigilant to safeguard their skin. For more detailed information, visit Cajamarca UV Index.

Maximum UV Index Levels in Cajamarca for December

The chart shows the monthly maximum UV Index (UVI) for Cajamarca 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 Cajamarca typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171819181513141417181616
Data source: Cajamarca 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 Cajamarca

In Cajamarca, Peru, December signals a delightful transition into summer, as the region basks in an impressive 269 hours of sunshine. This month stands out in a tableau of increasing daylight, with a remarkable climb from 215 hours in January to a peak of 335 hours in August. The trend reveals a steadily growing appreciation of sunlight throughout the year, particularly gaining momentum in the winter months, where longer days invite outdoor exploration. As the year reaches its zenith in sunshine, Cajamarca's December warmth lays the perfect backdrop for festive gatherings and seasonal celebrations, making it a truly enchanting time in this vibrant Andean city.

Monthly Sunshine Duration in Cajamarca: December Highlighted

The December sunshine duration represents the total number of hours Cajamarca 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.
JanFebMarAprMayJunJulAugSepOctNovDec215h238h227h263h314h314h333h335h311h285h266h269h
Data source: Cajamarca December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cajamarca During December

In Cajamarca, Peru, the likelihood of sunny weather exhibits intriguing seasonal trends, particularly as the year progresses. From January to November, the chances of sunshine remain relatively low, fluctuating between a mere 10% in January and only 13% in both November and February. A noticeable shift occurs in May, when the probabilities jump to 44%, laying the foundation for sunnier months ahead. By July, visitors can expect a remarkable 69% likelihood of sunshine, marking it as the sunniest month of the year. However, as the year closes with December, the chance of sun dips slightly to 16%—still above the early months but less than the summer peak. This progression reveals how Cajamarca transitions from overcast beginnings to vibrant summer days, making mid-year the ideal time for sun-seekers.

Percentage of Sunny Days in December in Cajamarca

The chart illustrates the percentage of sunny days in Cajamarca 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 Cajamarca experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec10%13%8%16%44%39%69%48%39%17%13%16%
Data source: Cajamarca December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cajamarca in December

In Cajamarca, Peru, the daylight duration remains remarkably consistent throughout the year, with an average of 12 hours from January to March. As the seasons transition into the cooler months of April through August, the daylight slightly diminishes to 11 hours, reflecting the shifting climate. However, as September approaches, the days regain their length, returning to 12 hours of daylight, and this pattern continues through November and December. This cyclical rhythm showcases a balanced and predictable sunlight exposure, perfect for outdoor activities year-round, making Cajamarca an inviting destination no matter the season.

Average Daylight Hours in Cajamarca for December

The chart illustrates the variation in daylight duration in Cajamarca throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 28m12h 18m12h 7m11h 55m11h 46m11h 42m11h 44m11h 52m12h 3m12h 15m12h 25m12h 31m
Data source: Cajamarca daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Cajamarca

In Cajamarca, Peru, the December winds experience a slight uptick, with an average wind speed of 1.2 m/s (3 mph), consistent with the gentle breezes felt throughout the preceding months. This marks a steady trend from July's peak of 1.7 m/s (4 mph), which is the highest velocity of the year. Despite the variations, the wind generally remains mild, with most months averaging around 1.1 to 1.3 m/s (2 to 3 mph). As December sets in, the calmness of the wind continues to create a serene atmosphere, ideal for enjoying the festive spirit in the highlands. The gentle gusts contribute to the region's charm, making it a perfect backdrop for tranquil moments and lively gatherings alike.

Average December Wind Speed in Cajamarca

The chart displays monthly wind speed patterns in Cajamarca, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.11.31.11.11.31.21.71.51.41.11.21.2 m/s
Data source: Cajamarca December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Cajamarca Compares to Other Months

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

December and January in Cajamarca exhibit mild temperatures, with January showing a slight increase in the minimum temperature at 6°C (42°F), compared to December's minimum of 3°C (38°F). Both months have similar average temperatures of 12°C (54°F), while January’s maximum temperature is marginally lower at 20°C (69°F), compared to December's 21°C (70°F). Precipitation levels decrease significantly in January, with 304 mm (12.0 in) of rain over 24 days, compared to December's 413 mm (16.2 in) over 26 days. Interestingly, humidity remains fairly consistent, rising from 82% in December to 83% in January. For a more detailed look at January's weather, visit Cajamarca weather in January.

In comparing December and February weather, both months feature similar temperature ranges with a minimum of 3°C (38°F), an average of 12°C (54°F), and a maximum of 21°C (70°F). However, December experiences slightly higher precipitation at 413 mm (16.2 in) over 26 days, whereas February sees a bit less at 392 mm (15.4 in) with the same number of rainy days. Humidity levels are also comparable, with December at 82% and February slightly lower at 81%. For more details on February weather specifically, you can visit Cajamarca weather in February.

In December, temperatures in Cajamarca typically range from a minimum of 3°C (38°F) to a maximum of 21°C (70°F), with an average temperature of 12°C (54°F). The month sees significant rainfall, totaling 413 mm (16.2 in) across approximately 26 days, alongside a high humidity level of 82%.

In contrast, March experiences slightly milder temperatures, with minimums around 4°C (40°F) and similar maximums of 21°C (69°F), while maintaining an average temperature of 12°C (53°F). However, March is notably wetter, receiving 599 mm (23.6 in) of precipitation over 29 days and a higher humidity level of 88%. This pattern makes March a wetter and more humid month compared to December. For further details, you can check Cajamarca weather in March.

In December, the weather is marked by a broader temperature range with minimums around 3°C (38°F) and maximums reaching 21°C (70°F). This month experiences significant rainfall, with 413 mm (16.2 in) over 26 days, and a relatively high humidity level of 82%. In contrast, April sees slightly milder temperatures, with minimums of 6°C (43°F) and maximums of 20°C (69°F). Although April receives less precipitation at 348 mm (13.7 in) over 27 days, it records a higher humidity of 85%. This comparison highlights the more varied and wetter conditions of December compared to the relatively cool and still humid April. For more detailed information, visit Cajamarca weather in April.

When comparing the weather in December and May, both months feature similar average temperatures, hovering around 12°C (54°F), with maximums reaching 21°C (70°F). However, December tends to be wetter, with 413 mm (16.2 in) of precipitation over 26 days, compared to May’s 188 mm (7.4 in) spread across 24 days. Additionally, December's humidity is slightly higher at 82%, while May sees a more comfortable 78%. This distinction in rainfall and humidity makes May a more pleasant month overall. For more detailed insights, check out Cajamarca weather in May.

December and June in Cajamarca exhibit some notable contrasts despite having similar average temperatures. In December, temperatures range from a minimum of 3°C (38°F) to a maximum of 21°C (70°F) with significant precipitation of 413 mm (16.2 in) spread over 26 days, resulting in a high humidity level of 82%. Conversely, June experiences slightly warmer temperatures, with a minimum of 4°C (39°F) and a maximum of 21°C (71°F), but boasts much lower precipitation of 70 mm (2.8 in) over only 12 days, leading to a more comfortable humidity level of 62%. For more detailed insights into the climate, you can check out Cajamarca weather in June.

When comparing the weather in December and July, notable differences emerge. December features a wider range of temperatures, with a minimum of 3°C (38°F) and a maximum of 21°C (70°F), while July's temperatures hover slightly higher, ranging from 4°C (39°F) to 22°C (71°F). Despite this similarity, December experiences significantly more precipitation, totaling 413 mm (16.2 in) over 26 days, compared to July's modest 43 mm (1.7 in) across just 8 days. Additionally, humidity levels are markedly different; December boasts a high humidity of 82%, while July's humidity is considerably lower at 44%. For more specific insights into July's climate, you can refer to Cajamarca weather in July.

In comparing the weather of December and August, December exhibits cooler temperatures with an average of 12°C (54°F) and maximums reaching 21°C (70°F), while August is slightly warmer, averaging also 12°C (55°F) but with maximums of 23°C (74°F). Precipitation in December is significantly higher, totaling 413 mm (16.2 in) over 26 days, whereas August experiences a much drier climate with only 47 mm (1.9 in) across 9 days. Additionally, December's humidity levels are markedly higher at 82%, in contrast to August’s more comfortable 38%. For more details on the specific conditions during August, you can check Cajamarca weather in August.

In comparing the weather between December and September, we observe notable differences in temperature and precipitation patterns. December has a slightly wider temperature range, with minimums around 3°C (38°F) and maximums reaching up to 21°C (70°F), while September's temperatures range from 5°C (42°F) to a maximum of 23°C (73°F). Interestingly, both months have the same average temperature of 12°C (54°F). However, December is significantly wetter, with 413 mm (16.2 in) of precipitation over 26 days, compared to September's 154 mm (6.1 in) over 18 days. Additionally, the humidity in December is much higher at 82%, while September enjoys a lower humidity level of 42%. For more detailed information on September's climate, you can refer to Cajamarca weather in September.

December weather shows a slightly cooler range compared to October, with minimum temperatures averaging 3°C (38°F) as opposed to 4°C (40°F) in October. Both months have similar average and maximum temperatures, hovering around 12°C (54°F) and 21°C (70°F) respectively. However, December experiences significantly higher precipitation, totaling 413 mm (16.2 in) over 26 days, compared to October's 299 mm (11.8 in) during the same number of days. Additionally, December is much more humid at 82%, while October maintains a lower humidity level of 58%. For more details, check Cajamarca weather in October.

In comparing the weather between November and December, both months share a consistent average temperature of 12°C (54°F), with maximums reaching up to 21°C (70°F). However, December experiences a more significant temperature variation, with minimums dropping to 3°C (38°F) compared to November's lowest at 0°C (33°F). Precipitation levels rise notably in December, with 413 mm (16.2 in) recorded over 26 days, compared to November's 290 mm (11.4 in) over 23 days. Additionally, December's humidity is higher at 82%, while November maintains a lower humidity level of 69%. For a more detailed understanding of November's weather, you can visit Cajamarca weather in November.

Compare Cajamarca's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Cajamarca

In December, Cajamarca experiences a noticeable shift in weather, characterized by higher humidity and increased rainfall compared to the preceding months. This month marks the transition to the rainy season, with precipitation occurring on nearly every day, contributing to a wet atmosphere that contrasts sharply with the drier conditions that often dominate earlier in the year. While daytime temperatures remain mild, the cooler nighttime lows add a brisk touch to the evenings, requiring warmer clothing for comfort. For those interested in understanding the broader climate patterns of this region, detailed insights can be found at Cajamarca Climate.