January Weather in Catalina, United States

Last updated: June 24, 2025

In January, the average temperature in Catalina, United States is a mild 10°C (51°F), with a minimum dipping to -2°C (28°F) and a maximum reaching a pleasant 24°C (75°F). Expect some rain, as 34 mm (1.3 in) of precipitation typically falls over 4 days, while the average humidity hovers around 76%. Embrace the crisp atmosphere!

January Temperature in Catalina

In January in Catalina, the average temperature is 10°C (51°F). The maximum can reach 24°C (75°F), while the minimum can drop as low as -2°C (28°F). Be prepared for a range of temperatures to ensure a comfortable and enjoyable travel experience.

January Weather in Catalina: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Catalina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Catalina, January typically has an average temperature of 10°C (51°F), with highs reaching up to 24°C (75°F) and lows dropping to around -2°C (28°F).

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

January Precipitation in Catalina

In Catalina in January, the precipitation amount is 34 mm (1.3 in) over a span of 4 days.

January Precipitation Trends in Catalina

The chart displays monthly precipitation patterns in Catalina, 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 Catalina, January typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 4 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 Catalina

In Catalina in January, humidity is 76%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that can make outdoor excursions feel much colder, requiring extra layers for comfort as you explore the area.

January Average Humidity in Catalina

This chart illustrates the average monthly humidity levels in Catalina, 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 Catalina is approximately 76%, 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 Catalina

In Catalina in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Catalina.

Maximum UV Index Levels in Catalina for January

The chart shows the monthly maximum UV Index (UVI) for Catalina 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 Catalina typically reaches 5, which falls under the moderate exposure category.

Data source: Catalina 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 Catalina Compares to Other Months

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

This table compares monthly weather conditions in Catalina, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	34 mm (1.3 inches)	76%	moderate
February Weather	12°C (53°F)	42 mm (1.7 inches)	79%	high
March Weather	15°C (60°F)	22 mm (0.9 inches)	67%	very high
April Weather	21°C (69°F)	3 mm (0.1 inches)	55%	extreme
May Weather	24°C (76°F)	5 mm (0.2 inches)	40%	extreme
June Weather	30°C (86°F)	9 mm (0.3 inches)	33%	extreme
July Weather	30°C (86°F)	96 mm (3.8 inches)	34%	extreme
August Weather	29°C (85°F)	63 mm (2.5 inches)	48%	extreme
September Weather	27°C (81°F)	34 mm (1.3 inches)	64%	extreme
October Weather	22°C (71°F)	12 mm (0.5 inches)	67%	very high
November Weather	17°C (62°F)	21 mm (0.8 inches)	77%	high
December Weather	11°C (52°F)	31 mm (1.2 inches)	82%	moderate