January Weather in Oakland, United States

Last updated: June 24, 2025

In January, the average temperature in Oakland, United States is a comfortable 16°C (60°F). However, be prepared for a range of temperatures, where the minimum can drop to -3°C (27°F) and the maximum may soar up to 29°C (84°F). Expect about 43 mm (1.7 in) of precipitation over 4 days, and keep in mind the average humidity hovers around 83%, adding a touch of dampness to the scenery.

January Temperature in Oakland

In January in Oakland, the average temperature is 16°C (60°F), with maximums reaching 29°C (84°F) and minimums dropping as low as -3°C (27°F). This varied climate makes it essential to pack layers for your travel to Oakland during this time.

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

The chart illustrates January temperature patterns in Oakland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oakland, January typically has an average temperature of 16°C (60°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (27°F).

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

January Precipitation in Oakland

In Oakland in January, the precipitation amount is 43 mm (1.7 in) over the course of 4 days.

January Precipitation Trends in Oakland

The chart displays monthly precipitation patterns in Oakland, 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 Oakland, January typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 4 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 Oakland

In Oakland in January humidity is 83%. With an average temperature of 16°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit uncomfortable for traveling.

January Average Humidity in Oakland

This chart illustrates the average monthly humidity levels in Oakland, 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 Oakland is approximately 83%, 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 Oakland

In Oakland in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Oakland.

Maximum UV Index Levels in Oakland for January

The chart shows the monthly maximum UV Index (UVI) for Oakland 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 Oakland typically reaches 5, which falls under the moderate exposure category.

Data source: Oakland 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 Oakland Compares to Other Months

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

This table compares monthly weather conditions in Oakland, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (60°F)	43 mm (1.7 inches)	83%	moderate
February Weather	19°C (66°F)	54 mm (2.1 inches)	80%	very high
March Weather	20°C (68°F)	19 mm (0.8 inches)	75%	very high
April Weather	23°C (73°F)	75 mm (2.9 inches)	70%	extreme
May Weather	25°C (78°F)	105 mm (4.1 inches)	68%	extreme
June Weather	27°C (81°F)	213 mm (8.4 inches)	75%	extreme
July Weather	27°C (82°F)	243 mm (9.6 inches)	79%	extreme
August Weather	28°C (82°F)	233 mm (9.2 inches)	81%	extreme
September Weather	27°C (81°F)	183 mm (7.2 inches)	83%	extreme
October Weather	25°C (77°F)	84 mm (3.3 inches)	81%	very high
November Weather	20°C (68°F)	46 mm (1.8 inches)	82%	high
December Weather	17°C (63°F)	65 mm (2.6 inches)	84%	moderate