January Weather in San Clemente, Italy

Last updated: August 23, 2025

In January, the average temperature in San Clemente, Italy hovers around 8°C (46°F), offering a cool climate for visitors. Expect a range between a chilly 1°C (34°F) and a mild 14°C (57°F). Be prepared for some rain, as 44 mm (1.7 in) of precipitation is expected over 8 days. Additionally, the average humidity is notably high at 85%, adding to the overall moisture in the air.

January Temperature in San Clemente

In January in San Clemente, the average temperature is 8°C (46°F). The maximum can reach 14°C (57°F), while the minimum can dip as low as 1°C (34°F). Be sure to pack layers to stay comfortable during your travels!

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 8°C (46°F), with highs reaching up to 14°C (57°F) and lows dropping to around 1°C (34°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 total precipitation amount is 44 mm (1.7 in) over a duration of 8 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 44 mm (1.7 inches) of precipitation spread over approximately 8 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 85%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp embrace that can leave travelers feeling chilled and uncomfortable, making outdoor exploration less appealing and encouraging the search for cozy indoor activities instead.

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 85%, 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 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in San Clemente, you can visit 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 2, which falls under the low 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	8°C (46°F)	44 mm (1.7 inches)	85%	low
February Weather	9°C (48°F)	82 mm (3.2 inches)	78%	moderate
March Weather	10°C (50°F)	56 mm (2.2 inches)	69%	moderate
April Weather	13°C (56°F)	47 mm (1.8 inches)	71%	high
May Weather	18°C (64°F)	72 mm (2.8 inches)	71%	very high
June Weather	23°C (73°F)	27 mm (1.1 inches)	63%	very high
July Weather	25°C (77°F)	51 mm (2.0 inches)	59%	very high
August Weather	26°C (79°F)	42 mm (1.7 inches)	54%	very high
September Weather	22°C (71°F)	94 mm (3.7 inches)	67%	high
October Weather	17°C (64°F)	76 mm (3.0 inches)	78%	moderate
November Weather	13°C (56°F)	100 mm (3.9 inches)	84%	moderate
December Weather	9°C (49°F)	84 mm (3.3 inches)	86%	low