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January Weather in Santa Rosa, Peru

Last updated: August 27, 2025

In January, the average temperature in Santa Rosa, Peru hovers around 6°C (43°F), with a minimum falling as low as -3°C (26°F) and a maximum reaching 16°C (61°F). Expect considerable precipitation, averaging 259 mm (10.2 in) over 25 days, and high humidity levels at 89%, ensuring a distinctly damp atmosphere throughout the month.

January Temperature in Santa Rosa

In January in Santa Rosa, the average temperature is 6°C (43°F). Maximums can reach 16°C (61°F), and minimums can be as low as -3°C (26°F). Travelers should be prepared for chilly conditions and pack accordingly for a range of temperatures.

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 (43°F), with highs reaching up to 16°C (61°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec434343424140404143434444
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 259 mm (10.2 in) occurring over 25 days.

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 259 mm (10.2 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec2593042841274613172683162184245
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 89%. With an average temperature of 6°C (43°F), this humidity feels like a chilly, damp embrace that can make outdoor activities uncomfortable and energy-draining, often leading travelers to seek shelter indoors or dress in layers to cope with the cold and moist air.

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 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%84%67%53%47%53%67%75%83%
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.
JanFebMarAprMayJunJulAugSepOctNovDec232222181412131517182024
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 (43°F)259 mm (10.2 inches)89%extreme
February Weather6°C (43°F)304 mm (12.0 inches)90%extreme
March Weather6°C (43°F)284 mm (11.2 inches)90%extreme
April Weather6°C (42°F)127 mm (5.0 inches)90%extreme
May Weather5°C (41°F)46 mm (1.8 inches)84%extreme
June Weather5°C (41°F)13 mm (0.5 inches)67%extreme
July Weather5°C (41°F)16 mm (0.6 inches)53%extreme
August Weather5°C (42°F)25 mm (1.0 inches)47%extreme
September Weather6°C (43°F)83 mm (3.3 inches)53%extreme
October Weather6°C (43°F)162 mm (6.4 inches)67%extreme
November Weather7°C (45°F)184 mm (7.3 inches)75%extreme
December Weather7°C (44°F)245 mm (9.7 inches)82%extreme

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