January Weather in Ventura, United States

Last updated: June 24, 2025

In January, the average temperature in Ventura, United States hovers around -8°C (19°F). However, be prepared for extreme fluctuations, as temperatures can plunge to a chilling -34°C (-28°F) or rise to a brisk 10°C (51°F). During this month, expect about 36 mm (1.4 in) of precipitation spread over 5 days, contributing to an average humidity level of 82%. Stay warm and cozy!

January Temperature in Ventura

In January in Ventura, the average temperature is -8°C (19°F). Maximum temperatures can reach 10°C (51°F), while minimums can plummet to as low as -34°C (-28°F). Travelers should be well-prepared for extreme cold and fluctuating weather conditions during this time.

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

The chart illustrates January temperature patterns in Ventura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ventura, January typically has an average temperature of -8°C (19°F), with highs reaching up to 10°C (51°F) and lows dropping to around -34°C (-28°F).

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

January Precipitation in Ventura

In Ventura in January, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.

January Precipitation Trends in Ventura

The chart displays monthly precipitation patterns in Ventura, 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 Ventura, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 5 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 Ventura

In Ventura in January humidity is 82%. With an average temperature of -8°C (19°F), this humidity feels like a biting chill enveloping you, making it crucial to dress in layers for traveling, as the dampness in the air penetrates clothing and adds an extra layer of discomfort to the cold.

January Average Humidity in Ventura

This chart illustrates the average monthly humidity levels in Ventura, 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 Ventura is approximately 82%, 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 Ventura

In Ventura in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Ventura, you can check the information here.

Maximum UV Index Levels in Ventura for January

The chart shows the monthly maximum UV Index (UVI) for Ventura 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 Ventura typically reaches 3, which falls under the moderate exposure category.

Data source: Ventura 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 Ventura Compares to Other Months

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

This table compares monthly weather conditions in Ventura, 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 (19°F)	36 mm (1.4 inches)	82%	moderate
February Weather	-8°C (18°F)	47 mm (1.9 inches)	84%	moderate
March Weather	1°C (35°F)	72 mm (2.9 inches)	80%	moderate
April Weather	7°C (45°F)	83 mm (3.3 inches)	81%	very high
May Weather	15°C (60°F)	159 mm (6.2 inches)	74%	very high
June Weather	22°C (72°F)	133 mm (5.2 inches)	80%	extreme
July Weather	23°C (74°F)	102 mm (4.0 inches)	80%	very high
August Weather	21°C (71°F)	121 mm (4.8 inches)	77%	very high
September Weather	18°C (65°F)	105 mm (4.1 inches)	75%	very high
October Weather	10°C (49°F)	110 mm (4.3 inches)	80%	moderate
November Weather	2°C (35°F)	47 mm (1.9 inches)	87%	moderate
December Weather	-3°C (27°F)	36 mm (1.4 inches)	83%	moderate