January Weather in Vista West, United States

Last updated: June 24, 2025

In Vista West, United States, the average temperature in January hovers around -6°C (21°F). Expect chilly lows dipping to -28°C (-18°F) and highs reaching up to 8°C (46°F). During this period, precipitation totals approximately 21 mm (0.8 in) over 4 days, and average humidity remains notably high at 79%.

January Temperature in Vista West

In January in Vista West, the average temperature is -6°C (21°F), with maximums reaching 8°C (46°F) and minimums dropping as low as -28°C (-18°F). Travelers should be prepared for cold conditions and pack appropriate winter clothing for their visit.

January Weather in Vista West: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Vista West, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vista West, January typically has an average temperature of -6°C (21°F), with highs reaching up to 8°C (46°F) and lows dropping to around -28°C (-18°F).

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

January Precipitation in Vista West

In Vista West in January, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

January Precipitation Trends in Vista West

The chart displays monthly precipitation patterns in Vista West, 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 Vista West, January typically receives around 21 mm (0.8 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 Vista West

In Vista West in January, humidity is 79%. With an average temperature of -6°C (21°F), this humidity feels like an icy embrace, making it essential for travelers to bundle up and prepare for the sharp, penetrating chill that hangs in the air, creating a biting sensation that can quickly drain your energy.

January Average Humidity in Vista West

This chart illustrates the average monthly humidity levels in Vista West, 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 Vista West is approximately 79%, 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 Vista West

In Vista West in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Vista West for better planning.

Maximum UV Index Levels in Vista West for January

The chart shows the monthly maximum UV Index (UVI) for Vista West 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 Vista West typically reaches 4, which falls under the moderate exposure category.

Data source: Vista West 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 Vista West Compares to Other Months

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

This table compares monthly weather conditions in Vista West, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	21 mm (0.8 inches)	79%	moderate
February Weather	-7°C (19°F)	28 mm (1.1 inches)	81%	high
March Weather	0°C (32°F)	43 mm (1.7 inches)	70%	high
April Weather	4°C (40°F)	54 mm (2.1 inches)	67%	extreme
May Weather	10°C (51°F)	61 mm (2.4 inches)	70%	very high
June Weather	19°C (66°F)	24 mm (1.0 inches)	75%	extreme
July Weather	23°C (74°F)	11 mm (0.4 inches)	76%	extreme
August Weather	21°C (71°F)	13 mm (0.5 inches)	76%	extreme
September Weather	16°C (61°F)	24 mm (0.9 inches)	72%	very high
October Weather	5°C (42°F)	38 mm (1.5 inches)	70%	high
November Weather	1°C (35°F)	23 mm (0.9 inches)	76%	moderate
December Weather	-4°C (24°F)	25 mm (1.0 inches)	81%	moderate