Last updated: June 24, 2025
In December, the average temperature in Brighton, United States hovers around 8°C (46°F). Expect a notable temperature range, with minimums dipping to -10°C (14°F) and maximums peaking at 25°C (76°F). During this month, you'll encounter precipitation totaling 145 mm (5.7 in) over approximately 9 days, accompanied by a high average humidity of 88%.
In December in Brighton, the average temperature is 8°C (46°F), with maximums reaching 25°C (76°F) and minimums dropping as low as -10°C (14°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for daily excursions.
In Brighton in December, the precipitation amount is 145 mm (5.7 in) over a span of 9 days.
In Brighton in December, humidity is 88%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration feel much more uncomfortable than the temperature alone would suggest.
In Brighton 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 Brighton, you can check the information here.
UV Risk Categories
Weather in Brighton varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Brighton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 105 mm (4.1 inches) | 86% | moderate |
| February Weather | 7°C (45°F) | 172 mm (6.8 inches) | 85% | high |
| March Weather | 12°C (55°F) | 170 mm (6.7 inches) | 84% | high |
| April Weather | 16°C (61°F) | 133 mm (5.2 inches) | 81% | very high |
| May Weather | 22°C (72°F) | 115 mm (4.5 inches) | 83% | very high |
| June Weather | 26°C (79°F) | 109 mm (4.3 inches) | 83% | extreme |
| July Weather | 28°C (82°F) | 116 mm (4.6 inches) | 80% | extreme |
| August Weather | 26°C (80°F) | 111 mm (4.4 inches) | 73% | very high |
| September Weather | 24°C (76°F) | 92 mm (3.6 inches) | 70% | very high |
| October Weather | 18°C (64°F) | 119 mm (4.7 inches) | 73% | high |
| November Weather | 10°C (50°F) | 80 mm (3.2 inches) | 85% | moderate |
| December Weather | 8°C (46°F) | 145 mm (5.7 inches) | 88% | moderate |