January Weather in Poway, United States

Last updated: June 24, 2025

In January, the average temperature in Poway, United States hovers around 12°C (55°F). Temperatures can range from a chilly 1°C (35°F) to a warm 29°C (85°F). Expect some moisture, as the area receives 73 mm (2.9 in) of precipitation over about 6 days, contributing to an average humidity level of 72%.

January Temperature in Poway

In January in Poway, the average temperature is 12°C (55°F). Maximums can reach 29°C (85°F), while minimums can drop as low as 1°C (35°F). This temperature range makes Poway a versatile destination for travelers, offering pleasant weather while allowing for both warm days and cooler evenings.

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

The chart illustrates January temperature patterns in Poway, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Poway, January typically has an average temperature of 12°C (55°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (35°F).

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

January Precipitation in Poway

In Poway in January, the precipitation amount is 73 mm (2.9 in) over a span of 6 days.

January Precipitation Trends in Poway

The chart displays monthly precipitation patterns in Poway, 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 Poway, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Poway

In Poway in January, humidity is 72%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration a little less comfortable and requiring a light jacket to stay warm and dry.

January Average Humidity in Poway

This chart illustrates the average monthly humidity levels in Poway, 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 Poway is approximately 72%, 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 Poway

In Poway 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 Poway for better planning.

Maximum UV Index Levels in Poway for January

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

Data source: Poway 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 Poway Compares to Other Months

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

This table compares monthly weather conditions in Poway, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (55°F)	73 mm (2.9 inches)	72%	moderate
February Weather	12°C (55°F)	88 mm (3.5 inches)	77%	high
March Weather	14°C (57°F)	76 mm (3.0 inches)	67%	very high
April Weather	16°C (61°F)	35 mm (1.4 inches)	56%	very high
May Weather	17°C (63°F)	30 mm (1.2 inches)	46%	extreme
June Weather	20°C (68°F)	4 mm (0.2 inches)	48%	extreme
July Weather	23°C (74°F)	4 mm (0.1 inches)	46%	extreme
August Weather	24°C (75°F)	2 mm (0.1 inches)	42%	very high
September Weather	22°C (73°F)	5 mm (0.2 inches)	52%	very high
October Weather	20°C (68°F)	15 mm (0.6 inches)	58%	high
November Weather	16°C (62°F)	39 mm (1.5 inches)	66%	moderate
December Weather	13°C (55°F)	74 mm (2.9 inches)	74%	moderate