Last updated: June 24, 2025
In December, the average temperature in King City, United States hovers around 2°C (35°F). However, be prepared for a temperature range that can dip to a chilling -21°C (-5°F) or rise as high as a pleasant 23°C (73°F). Expect about 39 mm (1.5 in) of precipitation over just 3 days, accompanied by a high average humidity of 86%.
In December in King City, the average temperature is 2°C (35°F). The maximum can reach 23°C (73°F), while the minimum can be as low as -21°C (-5°F). Travelers should be prepared for a wide range of temperatures, so layering is essential when visiting during this time.
In King City in December, the precipitation amount is 39 mm (1.5 in) over a span of 3 days.
In King City in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.
In King City in December, 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 King City, you can check the information here.
UV Risk Categories
Weather in King City varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in King City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 46 mm (1.8 inches) | 80% | moderate |
| February Weather | -1°C (30°F) | 36 mm (1.4 inches) | 78% | moderate |
| March Weather | 7°C (44°F) | 94 mm (3.7 inches) | 75% | high |
| April Weather | 11°C (53°F) | 84 mm (3.3 inches) | 77% | very high |
| May Weather | 18°C (65°F) | 170 mm (6.7 inches) | 82% | very high |
| June Weather | 25°C (77°F) | 140 mm (5.5 inches) | 83% | extreme |
| July Weather | 26°C (79°F) | 118 mm (4.7 inches) | 81% | extreme |
| August Weather | 24°C (76°F) | 96 mm (3.8 inches) | 78% | very high |
| September Weather | 21°C (71°F) | 106 mm (4.2 inches) | 72% | very high |
| October Weather | 13°C (55°F) | 138 mm (5.5 inches) | 72% | high |
| November Weather | 5°C (42°F) | 48 mm (1.9 inches) | 84% | moderate |
| December Weather | 2°C (35°F) | 39 mm (1.5 inches) | 86% | moderate |