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December Weather in Calca, Peru

Last updated: August 27, 2025

In Calca, Peru, the average temperature in December hovers around 7°C (45°F). Expect a minimum of -3°C (28°F) and a maximum of 15°C (60°F). Over the course of the month, precipitation totals approximately 210 mm (8.3 in), accompanied by an average humidity of 90%, creating a notably damp atmosphere. Stay prepared for the chill and moisture!

December Temperature in Calca

In December in Calca, the average temperature is 7°C (45°F). Maximums can reach 15°C (60°F), while minimums can drop as low as -3°C (28°F). Be prepared for varying weather conditions and pack accordingly for your travels!

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

The chart illustrates December temperature patterns in Calca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Calca, December typically has an average temperature of 7°C (45°F), with highs reaching up to 15°C (60°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec444544444342414142444545
Data source: Temperature data for Calca 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 Calca

In Calca in December, the total precipitation amount is 210 mm (8.3 in) over a span of 30 days.

December Precipitation Trends in Calca

The chart displays monthly precipitation patterns in Calca, 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 Calca, December typically receives around 210 mm (8.3 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec201249234122110675065100133166210
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Calca

In Calca in December humidity is 90%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek shelter indoors or in cozy cafes.

December Average Humidity in Calca

This chart illustrates the average monthly humidity levels in Calca, 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 Calca is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Calca

In Calca in December, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Calca, you can check Hourly UV Index in Calca.

Maximum UV Index Levels in Calca for December

The chart shows the monthly maximum UV Index (UVI) for Calca 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 Calca typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919171412131416181817
Data source: Calca 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.

How December Weather in Calca Compares to Other Months

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

This table compares monthly weather conditions in Calca, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)201 mm (7.9 inches)91%extreme
February Weather7°C (45°F)249 mm (9.8 inches)90%extreme
March Weather7°C (45°F)234 mm (9.2 inches)91%extreme
April Weather7°C (44°F)121 mm (4.8 inches)89%extreme
May Weather6°C (43°F)110 mm (4.3 inches)85%extreme
June Weather5°C (42°F)67 mm (2.7 inches)65%extreme
July Weather5°C (41°F)50 mm (2.0 inches)47%extreme
August Weather5°C (41°F)65 mm (2.6 inches)38%extreme
September Weather6°C (42°F)100 mm (3.9 inches)40%extreme
October Weather6°C (44°F)133 mm (5.2 inches)56%extreme
November Weather7°C (45°F)166 mm (6.5 inches)76%extreme
December Weather7°C (45°F)210 mm (8.3 inches)90%extreme

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