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December Weather in San Juan Bautista, Peru

Last updated: August 27, 2025

In December, the average temperature in San Juan Bautista, Peru hovers around 22°C (71°F). You can expect temperatures to range from a minimum of 16°C (61°F) to a maximum of 30°C (86°F). With an average humidity of 83%, it's a humid month, accompanied by an estimated precipitation of 7 mm (0.3 in) over the course of 2 days.

December Temperature in San Juan Bautista

In December in San Juan Bautista, the average temperature is 22°C (71°F). Maximums can reach 30°C (86°F), while minimums can drop to 16°C (61°F). This mild weather makes it an ideal time for outdoor activities and sightseeing.

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

The chart illustrates December temperature patterns in San Juan Bautista, 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 Bautista, December typically has an average temperature of 22°C (71°F), with highs reaching up to 30°C (86°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec737374726966656667686971
Data source: Temperature data for San Juan Bautista 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 Bautista

In San Juan Bautista in December, the precipitation amount is 7 mm (0.3 in) over a period of 2 days.

December Precipitation Trends in San Juan Bautista

The chart displays monthly precipitation patterns in San Juan Bautista, 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 Bautista, December typically receives around 7 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec535029610000217
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Juan Bautista

In San Juan Bautista in December humidity is 83%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky but still enjoyable, as long as you stay hydrated and take breaks in the shade.

December Average Humidity in San Juan Bautista

This chart illustrates the average monthly humidity levels in San Juan Bautista, 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 Bautista is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%88%85%78%76%74%74%78%82%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Juan Bautista

In San Juan Bautista 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 Bautista.

Maximum UV Index Levels in San Juan Bautista for December

The chart shows the monthly maximum UV Index (UVI) for San Juan Bautista 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 Bautista typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161616141210111214161716
Data source: San Juan Bautista 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 Bautista Compares to Other Months

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

This table compares monthly weather conditions in San Juan Bautista, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (73°F)53 mm (2.1 inches)85%extreme
February Weather23°C (74°F)50 mm (2.0 inches)85%extreme
March Weather23°C (74°F)29 mm (1.1 inches)86%extreme
April Weather22°C (72°F)6 mm (0.2 inches)88%extreme
May Weather21°C (69°F)1 mm (0.0 inches)85%extreme
June Weather19°C (67°F)0 mm (0.0 inches)78%very high
July Weather18°C (66°F)0 mm (0.0 inches)75%extreme
August Weather19°C (66°F)0 mm (0.0 inches)73%extreme
September Weather19°C (67°F)0 mm (0.0 inches)74%extreme
October Weather20°C (68°F)2 mm (0.1 inches)78%extreme
November Weather21°C (69°F)1 mm (0.1 inches)82%extreme
December Weather22°C (71°F)7 mm (0.3 inches)83%extreme

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