January Weather in Orinda, United States

Last updated: June 24, 2025

In January, the average temperature in Orinda, United States hovers around 10°C (50°F), with a range that can dip as low as -2°C (29°F) and soar up to 25°C (78°F). Expect precipitation of about 101 mm (4.0 in) over the course of 8 days, contributing to an average humidity level of 82%. Embrace the mild and sometimes rainy climate as you explore this beautiful region!

January Temperature in Orinda

In January in Orinda, the average temperature is 10°C (50°F), with maximums reaching 25°C (78°F) and minimums dropping as low as -2°C (29°F). This variation in temperature makes it essential for travelers to pack layers for comfortable exploration of Orinda.

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

The chart illustrates January temperature patterns in Orinda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Orinda, January typically has an average temperature of 10°C (50°F), with highs reaching up to 25°C (78°F) and lows dropping to around -2°C (29°F).

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

January Precipitation in Orinda

In Orinda in January, the precipitation amount is 101 mm (4.0 in) spread over 8 days.

January Precipitation Trends in Orinda

The chart displays monthly precipitation patterns in Orinda, 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 Orinda, January typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 8 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 Orinda

In Orinda in January, humidity is 82%. With an average temperature of 10°C (50°F), this humidity feels like a dense, heavy blanket wrapping around you, making every step feel sluggish and the air thick, which can make traveling quite uncomfortable.

January Average Humidity in Orinda

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

In Orinda 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 Orinda, you can check the information here.

Maximum UV Index Levels in Orinda for January

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

Data source: Orinda 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 Orinda Compares to Other Months

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

This table compares monthly weather conditions in Orinda, 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 (50°F)	101 mm (4.0 inches)	82%	moderate
February Weather	11°C (53°F)	101 mm (4.0 inches)	84%	moderate
March Weather	12°C (54°F)	77 mm (3.0 inches)	82%	very high
April Weather	15°C (59°F)	32 mm (1.3 inches)	78%	very high
May Weather	17°C (63°F)	18 mm (0.7 inches)	71%	very high
June Weather	19°C (67°F)	1 mm (0.1 inches)	64%	extreme
July Weather	19°C (67°F)	0 mm (0.0 inches)	58%	extreme
August Weather	20°C (68°F)	0 mm (0.0 inches)	54%	very high
September Weather	20°C (68°F)	1 mm (0.0 inches)	55%	very high
October Weather	18°C (64°F)	25 mm (1.0 inches)	62%	high
November Weather	13°C (56°F)	41 mm (1.6 inches)	78%	moderate
December Weather	10°C (50°F)	88 mm (3.5 inches)	80%	moderate