Last updated: June 24, 2025
In Saint James, United States, the average temperature in December hovers around 4°C (40°F). Expect a chilly minimum of -15°C (5°F) and a warm maximum reaching 25°C (77°F). With an average humidity of 86% and precipitation totaling 58 mm (2.3 in) over about 7 days, be prepared for a potentially damp and brisk environment!
In December in Saint James, the average temperature is 4°C (40°F). Maximums can reach 25°C (77°F), while minimums can drop as low as -15°C (5°F). Be prepared for a wide range of temperatures when traveling during this time, and pack accordingly.
In Saint James in December, the precipitation amount is 58 mm (2.3 in) over the course of 7 days.
In Saint James in December humidity is 86%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel cumbersome as you navigate through a thick, heavy air that clings to your skin.
In Saint James 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 Saint James, you can check the information here.
UV Risk Categories
Weather in Saint James varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint James, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 77 mm (3.0 inches) | 83% | moderate |
| February Weather | 2°C (37°F) | 90 mm (3.6 inches) | 81% | moderate |
| March Weather | 9°C (48°F) | 132 mm (5.2 inches) | 80% | high |
| April Weather | 13°C (55°F) | 140 mm (5.5 inches) | 80% | very high |
| May Weather | 19°C (66°F) | 177 mm (7.0 inches) | 83% | very high |
| June Weather | 24°C (75°F) | 85 mm (3.3 inches) | 83% | extreme |
| July Weather | 26°C (79°F) | 89 mm (3.5 inches) | 76% | extreme |
| August Weather | 24°C (76°F) | 110 mm (4.3 inches) | 69% | very high |
| September Weather | 22°C (72°F) | 57 mm (2.2 inches) | 68% | very high |
| October Weather | 15°C (59°F) | 110 mm (4.3 inches) | 72% | high |
| November Weather | 7°C (45°F) | 68 mm (2.7 inches) | 83% | moderate |
| December Weather | 4°C (40°F) | 58 mm (2.3 inches) | 86% | moderate |