January Weather in Bonsall, United States

Last updated: June 24, 2025

In January, the average temperature in Bonsall, United States hovers around 13°C (56°F), with a potential range from a chilly 4°C (40°F) to a warm 30°C (87°F). Expect about 70 mm (2.8 in) of precipitation over approximately 5 days, contributing to an overall average humidity of 72%. Whether you're basking in the sun or seeking shelter from the rain, be prepared for the dynamic climate!

January Temperature in Bonsall

In January in Bonsall, the average temperature is 13°C (56°F). Maximums can reach 30°C (87°F) and minimums can be as low as 4°C (40°F). This climate makes it essential to pack layers for your travels, ensuring comfort throughout varying weather conditions.

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

The chart illustrates January temperature patterns in Bonsall, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bonsall, January typically has an average temperature of 13°C (56°F), with highs reaching up to 30°C (87°F) and lows dropping to around 4°C (40°F).

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

January Precipitation in Bonsall

In Bonsall in January, the precipitation amount is 70 mm (2.8 in) over the course of 5 days.

January Precipitation Trends in Bonsall

The chart displays monthly precipitation patterns in Bonsall, 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 Bonsall, January typically receives around 70 mm (2.8 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 Bonsall

In Bonsall in January, humidity is 72%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and reminding travelers to stay hydrated and seek shade whenever possible.

January Average Humidity in Bonsall

This chart illustrates the average monthly humidity levels in Bonsall, 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 Bonsall 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 Bonsall

In Bonsall 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 Bonsall for better planning.

Maximum UV Index Levels in Bonsall for January

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

Data source: Bonsall 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 Bonsall Compares to Other Months

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

This table compares monthly weather conditions in Bonsall, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	70 mm (2.8 inches)	72%	moderate
February Weather	13°C (56°F)	78 mm (3.1 inches)	77%	high
March Weather	14°C (58°F)	68 mm (2.7 inches)	67%	very high
April Weather	16°C (62°F)	32 mm (1.3 inches)	56%	very high
May Weather	17°C (63°F)	24 mm (0.9 inches)	46%	extreme
June Weather	20°C (68°F)	3 mm (0.1 inches)	48%	extreme
July Weather	23°C (73°F)	4 mm (0.2 inches)	46%	extreme
August Weather	24°C (75°F)	1 mm (0.1 inches)	42%	very high
September Weather	23°C (73°F)	5 mm (0.2 inches)	52%	very high
October Weather	20°C (69°F)	12 mm (0.5 inches)	58%	high
November Weather	17°C (63°F)	34 mm (1.4 inches)	66%	moderate
December Weather	14°C (57°F)	70 mm (2.7 inches)	74%	moderate