Last updated: June 24, 2025
In December, the average temperature in Newport, United States hovers around -3°C (27°F). Expect chilly extremes with a minimum of -26°C (-15°F) and potentially reaching a maximum of 15°C (60°F). This month brings around 129 mm (5.1 in) of precipitation over 17 days, contributing to an average humidity of 86%. Stay warm and prepared for the wet conditions!
In December in Newport, the average temperature is -3°C (27°F), with maximums reaching 15°C (60°F) and minimums plummeting to as low as -26°C (-15°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for outdoor activities.
In Newport in December, the total precipitation amount reaches 129 mm (5.1 in), occurring over a span of 17 days.
In Newport in December, humidity is 86%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill, making travel uncomfortable as the cold air penetrates through clothing, leaving you feeling damp and uneasy.
In Newport in December, 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 Newport, you can visit Hourly UV Index in Newport.
UV Risk Categories
Weather in Newport varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Newport, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 108 mm (4.3 inches) | 90% | moderate |
| February Weather | -4°C (25°F) | 118 mm (4.7 inches) | 90% | moderate |
| March Weather | -1°C (31°F) | 102 mm (4.0 inches) | 87% | high |
| April Weather | 6°C (44°F) | 139 mm (5.5 inches) | 88% | very high |
| May Weather | 13°C (56°F) | 136 mm (5.3 inches) | 82% | very high |
| June Weather | 18°C (65°F) | 123 mm (4.9 inches) | 79% | very high |
| July Weather | 21°C (70°F) | 157 mm (6.2 inches) | 78% | very high |
| August Weather | 20°C (68°F) | 134 mm (5.3 inches) | 76% | very high |
| September Weather | 16°C (61°F) | 94 mm (3.7 inches) | 78% | very high |
| October Weather | 10°C (51°F) | 179 mm (7.1 inches) | 84% | high |
| November Weather | 2°C (35°F) | 136 mm (5.3 inches) | 89% | moderate |
| December Weather | -3°C (27°F) | 129 mm (5.1 inches) | 86% | low |