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December Weather in Santa Teresa, Peru

Last updated: August 27, 2025

In December, the average temperature in Santa Teresa, Peru hovers around 10°C (50°F). You can expect a minimum of 4°C (40°F) and a maximum of 18°C (64°F). With 273 mm (10.7 in) of precipitation spread over 31 days, the air is often quite damp, leading to an average humidity of 89%.

December Temperature in Santa Teresa

In December in Santa Teresa, the average temperature is 10°C (50°F). The maximum can reach 18°C (64°F), while the minimum can be as low as 4°C (40°F). Pack layers and be prepared for varying temperatures while exploring the beautiful sights this destination has to offer.

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

The chart illustrates December temperature patterns in Santa Teresa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Teresa, December typically has an average temperature of 10°C (50°F), with highs reaching up to 18°C (64°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec484949484746454546484949
Data source: Temperature data for Santa Teresa 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 Teresa

In Santa Teresa in December, the total precipitation amount is 273 mm (10.7 in) accumulated over the course of 31 days.

December Precipitation Trends in Santa Teresa

The chart displays monthly precipitation patterns in Santa Teresa, 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 Teresa, December typically receives around 273 mm (10.7 inches) of precipitation spread over approximately 31 days.
JanFebMarAprMayJunJulAugSepOctNovDec25729228616069444462102174228273
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Teresa

In Santa Teresa in December, humidity is 89%. With an average temperature of 10°C (50°F), this humidity feels like a dense blanket wrapping around you, making travel feel damp and chilly, and urging you to dress in layers for comfort.

December Average Humidity in Santa Teresa

This chart illustrates the average monthly humidity levels in Santa Teresa, 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 Teresa is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%92%90%85%70%55%44%52%65%81%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Teresa

In Santa Teresa in December, the maximum UV index is 18, which corresponds to an extreme exposure category. This means that the time to burn is just 10 minutes. For more detailed information, you can check the hourly UV index in Santa Teresa.

Maximum UV Index Levels in Santa Teresa for December

The chart shows the monthly maximum UV Index (UVI) for Santa Teresa 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 Teresa typically reaches 18, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191918171411131416181918
Data source: Santa Teresa 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 Teresa Compares to Other Months

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

This table compares monthly weather conditions in Santa Teresa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)257 mm (10.1 inches)93%extreme
February Weather9°C (49°F)292 mm (11.5 inches)92%extreme
March Weather9°C (49°F)286 mm (11.3 inches)92%extreme
April Weather9°C (49°F)160 mm (6.3 inches)90%extreme
May Weather8°C (47°F)69 mm (2.7 inches)85%extreme
June Weather8°C (46°F)44 mm (1.7 inches)70%extreme
July Weather7°C (46°F)43 mm (1.7 inches)54%extreme
August Weather7°C (46°F)62 mm (2.5 inches)44%extreme
September Weather8°C (47°F)102 mm (4.0 inches)52%extreme
October Weather9°C (48°F)174 mm (6.9 inches)65%extreme
November Weather10°C (50°F)228 mm (9.0 inches)81%extreme
December Weather10°C (50°F)273 mm (10.7 inches)89%extreme

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