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December Weather in Challas, Peru

Last updated: August 27, 2025

In December, the average temperature in Challas, Peru is a cool 13°C (55°F). Expect temperatures to dip to a minimum of 6°C (43°F) and rise to a pleasant maximum of 22°C (73°F). This month also brings an average precipitation of 225 mm (8.9 in) over 29 days, making it quite wet. With an average humidity of 91%, it's advisable to prepare for a damp atmosphere as you explore this charming destination.

December Temperature in Challas

In December in Challas, the average temperature is 13°C (55°F), with highs reaching 22°C (73°F) and lows dipping to 6°C (43°F). It's a great time for travelers to enjoy mild weather while exploring the local attractions.

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

The chart illustrates December temperature patterns in Challas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Challas, December typically has an average temperature of 13°C (55°F), with highs reaching up to 22°C (73°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec545554535353525252535555
Data source: Temperature data for Challas 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 Challas

In Challas in December, the precipitation amount is 225 mm (8.9 in) over the course of 29 days.

December Precipitation Trends in Challas

The chart displays monthly precipitation patterns in Challas, 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 Challas, December typically receives around 225 mm (8.9 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec1991892651669656414684173203225
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Challas

In Challas in December, humidity is 91%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and often exhausting as every step feels weighed down by the thick, moist air.

December Average Humidity in Challas

This chart illustrates the average monthly humidity levels in Challas, 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 Challas is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%89%89%86%71%44%34%37%50%73%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Challas

In Challas 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 Challas, you can check Hourly UV Index in Challas.

Maximum UV Index Levels in Challas for December

The chart shows the monthly maximum UV Index (UVI) for Challas 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 Challas typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181919181513141417181717
Data source: Challas 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 Challas Compares to Other Months

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

This table compares monthly weather conditions in Challas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)199 mm (7.9 inches)88%extreme
February Weather13°C (55°F)189 mm (7.4 inches)86%extreme
March Weather12°C (54°F)265 mm (10.4 inches)89%extreme
April Weather12°C (54°F)166 mm (6.5 inches)89%extreme
May Weather12°C (54°F)96 mm (3.8 inches)86%extreme
June Weather12°C (53°F)56 mm (2.2 inches)71%extreme
July Weather11°C (52°F)41 mm (1.6 inches)44%extreme
August Weather11°C (52°F)46 mm (1.8 inches)34%extreme
September Weather11°C (53°F)84 mm (3.3 inches)37%extreme
October Weather12°C (54°F)173 mm (6.8 inches)50%extreme
November Weather13°C (55°F)203 mm (8.0 inches)73%extreme
December Weather13°C (55°F)225 mm (8.9 inches)91%extreme

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