nomadseason

December Weather in San Pedro, Peru

Last updated: August 27, 2025

In December, the average temperature in San Pedro, Peru is a comfortable 20°C (69°F). You can expect a minimum of 17°C (63°F) and a maximum of 25°C (77°F), making it a pleasant time to visit. With an average humidity of 87% and just 4 mm (0.1 in) of precipitation over 0 days, the weather is perfect for outdoor adventures!

December Temperature in San Pedro

In December in San Pedro, the average temperature is a pleasant 20°C (69°F). The maximum can reach up to 25°C (77°F), while the minimum can dip as low as 17°C (63°F). This climate makes for comfortable and enjoyable travel experiences.

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

The chart illustrates December temperature patterns in San Pedro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Pedro, December typically has an average temperature of 20°C (69°F), with highs reaching up to 25°C (77°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec727474716764626162636569
Data source: Temperature data for San Pedro generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in San Pedro

In San Pedro in December, the precipitation amount is 4 mm (0.1 in) recorded over a span of 0 days.

December Precipitation Trends in San Pedro

The chart displays monthly precipitation patterns in San Pedro, 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 Pedro, December typically receives around 4 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec231812745421234
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in San Pedro

In San Pedro in December humidity is 87%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket, making outdoor activities such as sightseeing and hiking quite challenging, as the thick air can leave you feeling sticky and tired quickly.

December Average Humidity in San Pedro

This chart illustrates the average monthly humidity levels in San Pedro, 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 Pedro is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%90%89%83%69%56%51%53%68%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Pedro

In San Pedro in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Pedro, you can check here.

Maximum UV Index Levels in San Pedro for December

The chart shows the monthly maximum UV Index (UVI) for San Pedro 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 Pedro typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14141413109101113141514
Data source: San Pedro 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 Pedro Compares to Other Months

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

This table compares monthly weather conditions in San Pedro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)23 mm (0.9 inches)89%extreme
February Weather23°C (74°F)18 mm (0.7 inches)89%extreme
March Weather23°C (74°F)12 mm (0.5 inches)90%extreme
April Weather21°C (71°F)7 mm (0.3 inches)89%extreme
May Weather19°C (67°F)4 mm (0.1 inches)83%very high
June Weather18°C (64°F)5 mm (0.2 inches)69%very high
July Weather17°C (63°F)4 mm (0.1 inches)56%very high
August Weather16°C (62°F)2 mm (0.1 inches)50%extreme
September Weather17°C (62°F)1 mm (0.1 inches)53%extreme
October Weather17°C (64°F)2 mm (0.1 inches)68%extreme
November Weather19°C (66°F)3 mm (0.1 inches)81%extreme
December Weather20°C (69°F)4 mm (0.1 inches)87%extreme

Compare San Pedro's Climate with Cities Worldwide