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December Weather in Santa Rosa, Peru

Last updated: August 27, 2025

In Santa Rosa, Peru, the average temperature in December hovers around 6°C (43°F). However, temperatures can dip as low as -5°C (24°F) and peak at 17°C (62°F). Expect 245 mm (9.6 in) of precipitation spread over 26 days, contributing to an average humidity of 90%. Prepare for a chilly and wet month!

December Temperature in Santa Rosa

In December in Santa Rosa, the average temperature is 6°C (43°F), with maximums reaching up to 17°C (62°F) and minimums dropping as low as -5°C (24°F). Therefore, it's advisable to pack layers to stay comfortable during your travels.

December Weather in Santa Rosa: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santa Rosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Rosa, December typically has an average temperature of 6°C (43°F), with highs reaching up to 17°C (62°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec424242413938384042434443
Data source: Temperature data for Santa Rosa 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 Santa Rosa

In Santa Rosa in December, the total precipitation amount is 245 mm (9.6 in), spread over the course of 26 days.

December Precipitation Trends in Santa Rosa

The chart displays monthly precipitation patterns in Santa Rosa, 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 Santa Rosa, December typically receives around 245 mm (9.6 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec2502642641155214131459121154245
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Rosa

In Santa Rosa in December humidity is 90%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill clinging to your skin, making travel uncomfortable as you navigate through the thick, heavy air that seems to sap your energy.

December Average Humidity in Santa Rosa

This chart illustrates the average monthly humidity levels in Santa Rosa, 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 Santa Rosa is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%92%91%87%76%57%51%67%77%85%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Rosa

In Santa Rosa in December, the maximum UV index reaches 21, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. You can find the hourly UV index in Santa Rosa to better plan your outdoor activities.

Maximum UV Index Levels in Santa Rosa for December

The chart shows the monthly maximum UV Index (UVI) for Santa Rosa 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 Santa Rosa typically reaches 21, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec232322181411131518191921
Data source: Santa Rosa 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 Santa Rosa Compares to Other Months

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

This table compares monthly weather conditions in Santa Rosa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)250 mm (9.8 inches)92%extreme
February Weather6°C (42°F)264 mm (10.4 inches)93%extreme
March Weather6°C (42°F)264 mm (10.4 inches)92%extreme
April Weather5°C (42°F)114 mm (4.5 inches)91%extreme
May Weather4°C (40°F)52 mm (2.0 inches)87%extreme
June Weather3°C (38°F)14 mm (0.5 inches)76%extreme
July Weather3°C (38°F)13 mm (0.5 inches)57%extreme
August Weather5°C (41°F)14 mm (0.5 inches)51%extreme
September Weather6°C (43°F)59 mm (2.3 inches)67%extreme
October Weather6°C (43°F)121 mm (4.8 inches)77%extreme
November Weather7°C (44°F)154 mm (6.0 inches)85%extreme
December Weather6°C (43°F)245 mm (9.6 inches)90%extreme

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