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December Weather in Montero, Peru

Last updated: August 27, 2025

In December, the average temperature in Montero, Peru hovers around 17°C (63°F). Expect the mercury to dip as low as 9°C (48°F), while peaking at a comfortable 25°C (77°F). However, be prepared for some rain, as the area receives an average of 358 mm (14.1 in) of precipitation over 28 days. With an average humidity level of 85%, the air can feel quite damp, making it essential to plan accordingly for your visit!

December Temperature in Montero

In December in Montero, the average temperature is 17°C (63°F). Maximum temperatures can reach 25°C (77°F), while minimums can drop to as low as 9°C (48°F). This mild climate makes Montero an ideal destination for enjoyable outdoor activities and sightseeing.

December Weather in Montero: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Montero, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montero, December typically has an average temperature of 17°C (63°F), with highs reaching up to 25°C (77°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec636363636362626363636263
Data source: Temperature data for Montero 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 Montero

In Montero in December, the precipitation amount is 358 mm (14.1 in) over a span of 28 days.

December Precipitation Trends in Montero

The chart displays monthly precipitation patterns in Montero, 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 Montero, December typically receives around 358 mm (14.1 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec33755573044021868271744182186358
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Montero

In Montero in December humidity is 85%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit stifling and encouraging frequent breaks in shaded areas or air-conditioned spaces for travelers.

December Average Humidity in Montero

This chart illustrates the average monthly humidity levels in Montero, 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 Montero is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%85%87%88%73%51%44%49%71%77%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Montero

In Montero in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Montero.

Maximum UV Index Levels in Montero for December

The chart shows the monthly maximum UV Index (UVI) for Montero 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 Montero typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161718181513131417171615
Data source: Montero 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 Montero Compares to Other Months

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

This table compares monthly weather conditions in Montero, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)337 mm (13.3 inches)82%extreme
February Weather17°C (63°F)555 mm (21.8 inches)80%extreme
March Weather17°C (63°F)729 mm (28.7 inches)85%extreme
April Weather17°C (63°F)440 mm (17.3 inches)87%extreme
May Weather17°C (63°F)218 mm (8.6 inches)88%extreme
June Weather17°C (63°F)68 mm (2.7 inches)73%extreme
July Weather17°C (63°F)27 mm (1.1 inches)51%extreme
August Weather17°C (63°F)17 mm (0.7 inches)44%extreme
September Weather17°C (64°F)44 mm (1.7 inches)49%extreme
October Weather17°C (63°F)182 mm (7.1 inches)71%extreme
November Weather17°C (63°F)186 mm (7.3 inches)77%extreme
December Weather17°C (63°F)358 mm (14.1 inches)85%extreme

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