Last updated: June 24, 2025
In Oakland, United States, the average temperature in January hovers around -2°C (28°F). Expect some chilly extremes, with minimums dipping as low as -26°C (-14°F), while occasional highs can reach up to 19°C (66°F). During this period, expect about 91 mm (3.6 in) of precipitation spread across 15 days, all amidst a notable average humidity of 89%. Stay warm and prepared for the wet conditions!
In January in Oakland, the average temperature is -2°C (28°F). Maximum temperatures can reach 19°C (66°F), while minimums can drop to as low as -26°C (-14°F). This unpredictable weather makes it essential for travelers to prepare for a wide range of conditions.
In Oakland in January, the total precipitation amount is 91 mm (3.6 in) over a span of 15 days.
In Oakland in January, humidity is 89%. With an average temperature of -2°C (28°F), this humidity feels like a heavy blanket, making it difficult to stay warm while traveling outdoors.
In Oakland 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 Oakland, you can check the information here.
UV Risk Categories
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.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -2°C (28°F) | 91 mm (3.6 inches) | 89% | moderate |
February Weather | 0°C (33°F) | 131 mm (5.1 inches) | 90% | moderate |
March Weather | 4°C (39°F) | 114 mm (4.5 inches) | 89% | high |
April Weather | 9°C (49°F) | 133 mm (5.2 inches) | 88% | very high |
May Weather | 15°C (60°F) | 152 mm (6.0 inches) | 80% | very high |
June Weather | 19°C (67°F) | 145 mm (5.7 inches) | 79% | very high |
July Weather | 22°C (72°F) | 121 mm (4.8 inches) | 74% | very high |
August Weather | 21°C (70°F) | 98 mm (3.9 inches) | 64% | very high |
September Weather | 18°C (65°F) | 126 mm (5.0 inches) | 67% | very high |
October Weather | 12°C (55°F) | 115 mm (4.5 inches) | 81% | high |
November Weather | 4°C (40°F) | 91 mm (3.6 inches) | 89% | moderate |
December Weather | 1°C (34°F) | 115 mm (4.5 inches) | 88% | low |