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December Weather in Santa Lucia, Peru

Last updated: August 27, 2025

In December, the average temperature in Santa Lucia, Peru is a brisk 8°C (47°F). Expect a range where the mercury can dip to a chilly -2°C (29°F) or rise to a mild 21°C (70°F). Rainfall is frequent, with a total precipitation of 167 mm (6.6 in) spread over 24 days, contributing to an average humidity of 90%.

December Temperature in Santa Lucia

In December in Santa Lucia, the average temperature is 8°C (47°F). Maximum temperatures can reach 21°C (70°F), while the minimum can drop as low as -2°C (29°F). Be prepared for a mix of mild and chilly weather during your travels, so pack accordingly!

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

The chart illustrates December temperature patterns in Santa Lucia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Lucia, December typically has an average temperature of 8°C (47°F), with highs reaching up to 21°C (70°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec454545444342424446464947
Data source: Temperature data for Santa Lucia 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 Lucia

In Santa Lucia in December, the precipitation amount is 167 mm (6.6 in) spread over a duration of 24 days.

December Precipitation Trends in Santa Lucia

The chart displays monthly precipitation patterns in Santa Lucia, 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 Lucia, December typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec1942152028531787507676167
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Lucia

In Santa Lucia in December, humidity is 90%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill enveloping you, making even short walks outside feel uncomfortable and heavy, as if the air is thick with moisture.

December Average Humidity in Santa Lucia

This chart illustrates the average monthly humidity levels in Santa Lucia, 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 Lucia 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 Lucia

In Santa Lucia in December, the maximum UV index reaches 19, which corresponds to an extreme exposure category. With a time to burn of just 10 minutes, it’s essential to take precautions. For detailed information, you can check the hourly UV index in Santa Lucia.

Maximum UV Index Levels in Santa Lucia for December

The chart shows the monthly maximum UV Index (UVI) for Santa Lucia 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 Lucia typically reaches 19, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec192018171311121416191919
Data source: Santa Lucia 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 Lucia Compares to Other Months

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

This table compares monthly weather conditions in Santa Lucia, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)194 mm (7.6 inches)92%extreme
February Weather7°C (46°F)215 mm (8.5 inches)93%extreme
March Weather7°C (45°F)202 mm (7.9 inches)92%extreme
April Weather7°C (44°F)85 mm (3.3 inches)91%extreme
May Weather6°C (43°F)31 mm (1.2 inches)87%extreme
June Weather6°C (42°F)7 mm (0.3 inches)76%extreme
July Weather6°C (42°F)8 mm (0.3 inches)57%extreme
August Weather7°C (44°F)7 mm (0.3 inches)51%extreme
September Weather8°C (46°F)50 mm (2.0 inches)67%extreme
October Weather8°C (47°F)76 mm (3.0 inches)77%extreme
November Weather9°C (49°F)76 mm (3.0 inches)85%extreme
December Weather8°C (47°F)167 mm (6.6 inches)90%extreme

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