Last updated: June 24, 2025
In December, the average temperature in Edinburgh, United States hovers around 3°C (38°F). Expect a chilly range, with minimums dipping to -18°C (1°F) and maximums peaking at 20°C (67°F). During this month, precipitation amounts to 97 mm (3.8 in) over about 10 days, contributing to a relatively high average humidity of 87%. Bundle up and prepare for a uniquely moist winter experience!
In December in Edinburgh, the average temperature is 3°C (38°F). Maximums can reach 20°C (67°F), while minimums can dip as low as -18°C (1°F). Be prepared for a wide range of temperatures when traveling to Edinburgh this month.
In Edinburgh in December, the total precipitation amount is 97 mm (3.8 in) over a span of 10 days.
In Edinburgh in December humidity is 87%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making travel quite uncomfortable as the cold dampness seeps into your clothes and lingers in the air, often leaving you shivering and longing for warmer, drier conditions.
In Edinburgh 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 Edinburgh, you can check the information here.
UV Risk Categories
Weather in Edinburgh varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Edinburgh, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 83 mm (3.3 inches) | 87% | moderate |
| February Weather | 2°C (36°F) | 108 mm (4.2 inches) | 85% | moderate |
| March Weather | 7°C (45°F) | 138 mm (5.4 inches) | 86% | high |
| April Weather | 12°C (54°F) | 117 mm (4.6 inches) | 84% | very high |
| May Weather | 19°C (66°F) | 136 mm (5.4 inches) | 79% | very high |
| June Weather | 23°C (74°F) | 125 mm (4.9 inches) | 82% | extreme |
| July Weather | 25°C (78°F) | 113 mm (4.4 inches) | 79% | very high |
| August Weather | 24°C (75°F) | 98 mm (3.9 inches) | 70% | very high |
| September Weather | 21°C (71°F) | 81 mm (3.2 inches) | 69% | very high |
| October Weather | 15°C (59°F) | 99 mm (3.9 inches) | 76% | high |
| November Weather | 6°C (43°F) | 102 mm (4.0 inches) | 88% | moderate |
| December Weather | 3°C (38°F) | 97 mm (3.8 inches) | 87% | moderate |