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December Weather in San Juan de Cacazu, Peru

Last updated: August 27, 2025

In December, the average temperature in San Juan de Cacazu, Peru hovers around 21°C (70°F). Expect a minimum of 16°C (62°F), while the maximum can reach a warm 30°C (86°F). Be prepared for significant rainfall, with a total precipitation of 304 mm (12.0 in) spread over 29 days. It’s worth noting that humidity levels are high, averaging around 90%, making the atmosphere feel quite tropical!

December Temperature in San Juan de Cacazu

In December, in San Juan de Cacazu, the average temperature is 21°C (70°F). The maximum can reach 30°C (86°F), and the minimum can be as low as 16°C (62°F). This pleasant climate makes San Juan de Cacazu an ideal destination for travelers seeking comfortable weather.

December Weather in San Juan de Cacazu: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Juan de Cacazu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan de Cacazu, December typically has an average temperature of 21°C (70°F), with highs reaching up to 30°C (86°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec696970696968676870707070
Data source: Temperature data for San Juan de Cacazu 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 San Juan de Cacazu

In San Juan de Cacazu in December, the total precipitation amount is 304 mm (12.0 in) spread over 29 days.

December Precipitation Trends in San Juan de Cacazu

The chart displays monthly precipitation patterns in San Juan de Cacazu, 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 San Juan de Cacazu, December typically receives around 304 mm (12.0 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec33937531422812790667587158225304
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Juan de Cacazu

In San Juan de Cacazu in December, humidity is 90%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket enveloping you, making travel a challenge as the air becomes thick and clings to your skin, leaving you longing for a refreshing breeze.

December Average Humidity in San Juan de Cacazu

This chart illustrates the average monthly humidity levels in San Juan de Cacazu, 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 San Juan de Cacazu is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Juan de Cacazu

In San Juan de Cacazu in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in San Juan de Cacazu.

Maximum UV Index Levels in San Juan de Cacazu for December

The chart shows the monthly maximum UV Index (UVI) for San Juan de Cacazu 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 San Juan de Cacazu typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171717161311111314161716
Data source: San Juan de Cacazu 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 San Juan de Cacazu Compares to Other Months

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

This table compares monthly weather conditions in San Juan de Cacazu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)339 mm (13.4 inches)91%extreme
February Weather21°C (70°F)375 mm (14.7 inches)90%extreme
March Weather21°C (70°F)314 mm (12.4 inches)91%extreme
April Weather21°C (70°F)228 mm (9.0 inches)89%extreme
May Weather20°C (69°F)127 mm (5.0 inches)85%extreme
June Weather20°C (69°F)90 mm (3.6 inches)65%extreme
July Weather20°C (67°F)66 mm (2.6 inches)47%extreme
August Weather20°C (68°F)75 mm (2.9 inches)38%extreme
September Weather21°C (70°F)87 mm (3.4 inches)40%extreme
October Weather21°C (70°F)158 mm (6.2 inches)56%extreme
November Weather21°C (71°F)224 mm (8.8 inches)76%extreme
December Weather21°C (70°F)304 mm (12.0 inches)90%extreme

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