January Weather in San Clemente, Mexico

Last updated: August 27, 2025

In San Clemente, Mexico, the average temperature in January is a comfortable 17°C (64°F). Expect a minimum of 3°C (38°F) and a pleasant maximum of 31°C (88°F). With an average humidity of 70% and 13 mm (0.5 in) of precipitation spread across 2 days, it’s a great time to enjoy all that the season has to offer!

January Temperature in San Clemente

In January in San Clemente, the average temperature is 17°C (64°F). Maximums can reach 31°C (88°F) and minimums can be as low as 3°C (38°F). This range makes San Clemente an ideal destination for travelers seeking a moderate climate for outdoor activities.

January Weather in San Clemente: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Clemente, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Clemente, January typically has an average temperature of 17°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 3°C (38°F).

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

January Precipitation in San Clemente

In San Clemente in January, the precipitation amount is 13 mm (0.5 in) over a span of 2 days.

January Precipitation Trends in San Clemente

The chart displays monthly precipitation patterns in San Clemente, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Clemente, January typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 2 days.

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

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Millimeters (mm) Inches (in)

January Humidity in San Clemente

In San Clemente in January, humidity is 70%. With an average temperature of 17°C (64°F), this humidity feels like a warm blanket wrapping around you, making traveling a bit sticky but still enjoyable as you explore the sights while staying hydrated.

January Average Humidity in San Clemente

This chart illustrates the average monthly humidity levels in San Clemente, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in San Clemente is approximately 70%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Clemente

In San Clemente in January, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Clemente.

Maximum UV Index Levels in San Clemente for January

The chart shows the monthly maximum UV Index (UVI) for San Clemente in January, 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 January, the maximum UV index in San Clemente typically reaches 9, which falls under the very high exposure category.

Data source: San Clemente January 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 January Weather in San Clemente Compares to Other Months

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

This table compares monthly weather conditions in San Clemente, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (64°F)	13 mm (0.5 inches)	70%	very high
February Weather	18°C (65°F)	26 mm (1.0 inches)	65%	extreme
March Weather	20°C (69°F)	3 mm (0.1 inches)	59%	extreme
April Weather	22°C (71°F)	2 mm (0.1 inches)	60%	extreme
May Weather	23°C (73°F)	29 mm (1.1 inches)	67%	extreme
June Weather	22°C (73°F)	161 mm (6.3 inches)	80%	extreme
July Weather	21°C (71°F)	178 mm (7.0 inches)	81%	extreme
August Weather	21°C (71°F)	221 mm (8.7 inches)	83%	extreme
September Weather	21°C (70°F)	220 mm (8.7 inches)	83%	extreme
October Weather	21°C (70°F)	101 mm (4.0 inches)	80%	extreme
November Weather	20°C (68°F)	24 mm (1.0 inches)	77%	very high
December Weather	18°C (64°F)	16 mm (0.6 inches)	76%	very high