Last updated: June 24, 2025
In December, the average temperature in Hamburg, United States hovers around 1°C (34°F). Temperatures can be quite variable, ranging from a chilly -22°C (-8°F) at minimum to a warm 23°C (73°F) at maximum. Expect precipitation totaling 33 mm (1.3 in) over about 4 days, contributing to an average humidity of 83%.
In December in Hamburg, the average temperature is 1°C (34°F). Maximum temperatures can reach 23°C (73°F), while minimums can drop to as low as -22°C (-8°F). It's essential to pack layers and be prepared for a wide range of temperatures while exploring the diverse climate.
In Hamburg in December, the precipitation amount is 33 mm (1.3 in) over a span of 4 days.
In Hamburg in December, humidity is 83%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel uncomfortable as the damp cold seeps into your bones, adding an extra layer of heaviness to the air that can leave you feeling sluggish and fatigued.
In Hamburg 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 Hamburg, you can check the information here.
UV Risk Categories
Weather in Hamburg varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hamburg, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 35 mm (1.4 inches) | 76% | moderate |
| February Weather | -2°C (28°F) | 32 mm (1.3 inches) | 80% | moderate |
| March Weather | 6°C (44°F) | 93 mm (3.7 inches) | 73% | high |
| April Weather | 11°C (52°F) | 71 mm (2.8 inches) | 74% | very high |
| May Weather | 18°C (65°F) | 155 mm (6.1 inches) | 78% | very high |
| June Weather | 25°C (77°F) | 106 mm (4.2 inches) | 82% | extreme |
| July Weather | 26°C (80°F) | 102 mm (4.0 inches) | 83% | very high |
| August Weather | 24°C (76°F) | 111 mm (4.4 inches) | 80% | very high |
| September Weather | 22°C (71°F) | 94 mm (3.7 inches) | 75% | very high |
| October Weather | 12°C (55°F) | 143 mm (5.6 inches) | 75% | high |
| November Weather | 5°C (42°F) | 32 mm (1.3 inches) | 82% | moderate |
| December Weather | 1°C (34°F) | 33 mm (1.3 inches) | 83% | moderate |