December Weather in San Pedro, Mexico

Last updated: August 26, 2025

In December, the average temperature in San Pedro, Mexico is a pleasant 16°C (62°F). Temperatures can vary widely, with a minimum of 3°C (39°F) and a maximum reaching 29°C (84°F). Expect 9 mm (0.4 in) of precipitation over 2 days, and enjoy an average humidity level of 74%, creating a cozy atmosphere throughout the month.

December Temperature in San Pedro

In December in San Pedro, the average temperature is 16°C (62°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as 3°C (39°F). This temperature range makes San Pedro an ideal destination for travelers seeking a mix of pleasant warmth and cooler evenings.

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 16°C (62°F), with highs reaching up to 29°C (84°F) and lows dropping to around 3°C (39°F).

Data source: Temperature data for San Pedro generated using information from the Copernicus Climate Change Service.

December Precipitation in San Pedro

In San Pedro in December, the precipitation amount is 9 mm (0.4 in) over the course of 2 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 9 mm (0.4 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in San Pedro

In San Pedro in December, humidity is 74%. With an average temperature of 16°C (62°F), this humidity feels like a warm, heavy blanket enveloping you, making it slightly uncomfortable for traveling as it can lead to a sticky sensation that may sap your energy during outdoor activities.

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 74%, offering insight into how humid the weather typically is during this month.

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 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in San Pedro.

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 8, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (62°F)	9 mm (0.3 inches)	64%	very high
February Weather	18°C (64°F)	14 mm (0.6 inches)	57%	extreme
March Weather	20°C (69°F)	6 mm (0.2 inches)	46%	extreme
April Weather	22°C (72°F)	2 mm (0.1 inches)	42%	extreme
May Weather	23°C (74°F)	26 mm (1.0 inches)	51%	extreme
June Weather	22°C (73°F)	112 mm (4.4 inches)	74%	extreme
July Weather	21°C (69°F)	165 mm (6.5 inches)	79%	extreme
August Weather	21°C (70°F)	137 mm (5.4 inches)	81%	extreme
September Weather	20°C (69°F)	158 mm (6.2 inches)	84%	extreme
October Weather	20°C (68°F)	59 mm (2.3 inches)	75%	extreme
November Weather	18°C (65°F)	26 mm (1.0 inches)	71%	very high
December Weather	16°C (62°F)	9 mm (0.4 inches)	74%	very high