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January Weather in Santa Rosa, Peru

Last updated: August 27, 2025

In Santa Rosa, Peru, the average temperature in January hovers around 6°C (42°F), with extremes ranging from a chilly -6°C (22°F) to a mild 16°C (60°F). Expect 250 mm (9.8 in) of precipitation over approximately 24 days, contributing to a high average humidity of 92%. Get ready for a month where cozy layers and a good umbrella are essential!

January Temperature in Santa Rosa

In January in Santa Rosa, the average temperature is 6°C (42°F). The maximum can reach 16°C (60°F), while the minimum can drop as low as -6°C (22°F). This range of temperatures makes it advisable to pack layers for your travels.

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

The chart illustrates January 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, January typically has an average temperature of 6°C (42°F), with highs reaching up to 16°C (60°F) and lows dropping to around -6°C (22°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.

January Precipitation in Santa Rosa

In Santa Rosa in January, the precipitation amount is 250 mm (9.8 in) spread over 24 days, highlighting the area's wet conditions during that time.

January Precipitation Trends in Santa Rosa

The chart displays monthly precipitation patterns in Santa Rosa, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Santa Rosa, January typically receives around 250 mm (9.8 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec2502642641155214131459121154245
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Santa Rosa

In Santa Rosa in January humidity is 92%. With an average temperature of 6°C (42°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures feel more challenging and less inviting as the frigid air, combined with the heavy moisture, weighs down your spirits and leaves you yearning for warmth.

January Average Humidity in Santa Rosa

This chart illustrates the average monthly humidity levels in Santa Rosa, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Santa Rosa is approximately 92%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Santa Rosa

In Santa Rosa in January, the maximum UV index reaches an extreme level of 23, indicating an Extreme Exposure Category. The time to burn is just 10 minutes. For detailed hourly updates on the UV index in Santa Rosa, you can check Hourly UV Index in Santa Rosa.

Maximum UV Index Levels in Santa Rosa for January

The chart shows the monthly maximum UV Index (UVI) for Santa Rosa in January, 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 January, the maximum UV index in Santa Rosa typically reaches 23, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec232322181411131518191921
Data source: Santa Rosa January 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 January 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 January’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 January’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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