Last updated: June 24, 2025
In Oakland, United States, the average temperature in January hovers around 5°C (42°F), with fluctuations between a chilly -8°C (17°F) and a mild 18°C (64°F). Expect precipitation totaling 158 mm (6.2 in) over 16 days, contributing to a high average humidity of 84%.
In January in Oakland, the average temperature is 5°C (42°F). The maximum can reach 18°C (64°F) while the minimum can drop as low as -8°C (17°F). Be sure to pack warm clothing for chilly days, but also bring layers for possible milder weather.
In Oakland in January, the total precipitation amount is 158 mm (6.2 in) that occurs over a span of 16 days.
In Oakland in January, humidity is 84%. With an average temperature of 5°C (42°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier while traveling.
In Oakland in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Oakland, you can visit Hourly UV Index in Oakland.
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 | 5°C (42°F) | 158 mm (6.2 inches) | 84% | low |
February Weather | 5°C (41°F) | 199 mm (7.8 inches) | 85% | moderate |
March Weather | 7°C (45°F) | 141 mm (5.6 inches) | 86% | high |
April Weather | 10°C (50°F) | 131 mm (5.2 inches) | 83% | high |
May Weather | 13°C (56°F) | 65 mm (2.5 inches) | 83% | very high |
June Weather | 17°C (63°F) | 40 mm (1.6 inches) | 83% | very high |
July Weather | 20°C (68°F) | 2 mm (0.1 inches) | 78% | very high |
August Weather | 20°C (69°F) | 6 mm (0.2 inches) | 67% | very high |
September Weather | 17°C (63°F) | 70 mm (2.8 inches) | 66% | very high |
October Weather | 11°C (53°F) | 87 mm (3.4 inches) | 77% | moderate |
November Weather | 8°C (46°F) | 135 mm (5.3 inches) | 87% | moderate |
December Weather | 4°C (40°F) | 169 mm (6.7 inches) | 87% | low |