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December Weather in Alerta, Peru

Last updated: August 27, 2025

In December, the average temperature in Alerta, Peru is a warm 26°C (79°F), with lows reaching 20°C (68°F) and highs soaring to 35°C (95°F). Be prepared for ample rainfall, as the area sees about 303 mm (11.9 in) of precipitation over approximately 25 days. With an average humidity of 88%, it's the perfect time to experience the lush, vibrant atmosphere of the region!

December Temperature in Alerta

In December in Alerta, the average temperature is 26°C (79°F). Maximum temperatures can reach 35°C (95°F), while the minimum can drop to as low as 20°C (68°F). This makes it a pleasant time for travelers seeking warm weather and outdoor activities.

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

The chart illustrates December temperature patterns in Alerta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alerta, December typically has an average temperature of 26°C (79°F), with highs reaching up to 35°C (95°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec787878777574757881807978
Data source: Temperature data for Alerta 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 Alerta

In Alerta in December, the precipitation amount is 303 mm (11.9 in) spread over 25 days.

December Precipitation Trends in Alerta

The chart displays monthly precipitation patterns in Alerta, 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 Alerta, December typically receives around 303 mm (11.9 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec2642922611859941292683178238303
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alerta

In Alerta in December, humidity is 88%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket wrapped around you, making travel somewhat uncomfortable as you quickly become aware of the stickiness and heaviness in the air.

December Average Humidity in Alerta

This chart illustrates the average monthly humidity levels in Alerta, 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 Alerta is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%89%84%67%46%37%33%44%73%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alerta

In Alerta 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 Alerta.

Maximum UV Index Levels in Alerta for December

The chart shows the monthly maximum UV Index (UVI) for Alerta 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 Alerta typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151615141210101113151615
Data source: Alerta 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 Alerta Compares to Other Months

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

This table compares monthly weather conditions in Alerta, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)264 mm (10.4 inches)88%extreme
February Weather25°C (78°F)292 mm (11.5 inches)87%extreme
March Weather25°C (78°F)261 mm (10.3 inches)87%extreme
April Weather25°C (78°F)185 mm (7.3 inches)89%extreme
May Weather24°C (76°F)99 mm (3.9 inches)84%extreme
June Weather23°C (75°F)41 mm (1.6 inches)67%very high
July Weather24°C (75°F)29 mm (1.1 inches)46%very high
August Weather25°C (78°F)26 mm (1.0 inches)37%extreme
September Weather27°C (81°F)83 mm (3.3 inches)33%extreme
October Weather27°C (80°F)178 mm (7.0 inches)44%extreme
November Weather26°C (79°F)238 mm (9.4 inches)73%extreme
December Weather26°C (79°F)303 mm (11.9 inches)88%extreme

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