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December Weather in Santa Rosa, Peru

Last updated: August 27, 2025

In December, the average temperature in Santa Rosa, Peru hovers around 19°C (67°F), with minimums dipping to 15°C (59°F) and maximums reaching up to 27°C (80°F). Expect considerable precipitation, totaling 412 mm (16.2 in) over 30 days, and a high average humidity of 90%.

December Temperature in Santa Rosa

In December in Santa Rosa, the average temperature is 19°C (67°F), with maximums reaching up to 27°C (80°F) and minimums dipping as low as 15°C (59°F). This makes it an ideal time for outdoor activities and exploring the local sights comfortably.

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 19°C (67°F), with highs reaching up to 27°C (80°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec666666666565646466666767
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 precipitation amount is 412 mm (16.2 in) over a period of 30 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 412 mm (16.2 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec4534713692761461148888128214333412
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 19°C (67°F), this humidity feels like a heavy, enveloping blanket, making travel feel sluggish and allowing every step to feel more laborious as the air clings to your skin.

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.
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 Santa Rosa

In Santa Rosa in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Santa Rosa.

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 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171717161311111314161716
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 Weather19°C (66°F)453 mm (17.8 inches)91%extreme
February Weather19°C (66°F)471 mm (18.5 inches)90%extreme
March Weather19°C (66°F)369 mm (14.5 inches)91%extreme
April Weather19°C (66°F)276 mm (10.9 inches)89%extreme
May Weather18°C (65°F)146 mm (5.7 inches)85%extreme
June Weather18°C (65°F)114 mm (4.5 inches)65%extreme
July Weather18°C (64°F)88 mm (3.5 inches)47%extreme
August Weather18°C (64°F)88 mm (3.5 inches)38%extreme
September Weather19°C (66°F)127 mm (5.0 inches)40%extreme
October Weather19°C (67°F)213 mm (8.4 inches)56%extreme
November Weather19°C (67°F)333 mm (13.1 inches)76%extreme
December Weather19°C (67°F)412 mm (16.2 inches)90%extreme

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