Last updated: June 24, 2025
In December, the average temperature in Stuart, United States hovers around 5°C (42°F), with extremes ranging from a chilly -12°C (11°F) to a milder 21°C (70°F). Expect about 111 mm (4.4 in) of precipitation spread over 9 days, contributing to an average humidity of 86%. Whether you're bracing for the cold or enjoying the occasional warmth, this month offers a unique climate experience!
In December in Stuart, the average temperature is 5°C (42°F). Maximum temperatures can reach 21°C (70°F), while the minimum can drop as low as -12°C (11°F). It's advisable to pack layers for your trip, as the temperature can vary significantly throughout the day.
In Stuart in December, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.
In Stuart in December, humidity is 86%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that penetrates your layers, making outdoor activities quite uncomfortable and prompting you to seek warmth indoors more often.
In Stuart 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 Stuart, you can check the information here.
UV Risk Categories
Weather in Stuart varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Stuart, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 80 mm (3.1 inches) | 87% | moderate |
| February Weather | 6°C (43°F) | 119 mm (4.7 inches) | 87% | high |
| March Weather | 9°C (48°F) | 82 mm (3.2 inches) | 86% | very high |
| April Weather | 13°C (56°F) | 145 mm (5.7 inches) | 84% | very high |
| May Weather | 18°C (65°F) | 144 mm (5.7 inches) | 83% | extreme |
| June Weather | 22°C (71°F) | 113 mm (4.4 inches) | 83% | extreme |
| July Weather | 24°C (76°F) | 88 mm (3.5 inches) | 79% | extreme |
| August Weather | 23°C (74°F) | 126 mm (5.0 inches) | 66% | very high |
| September Weather | 20°C (69°F) | 143 mm (5.6 inches) | 68% | very high |
| October Weather | 15°C (60°F) | 127 mm (5.0 inches) | 78% | very high |
| November Weather | 8°C (46°F) | 82 mm (3.2 inches) | 89% | moderate |
| December Weather | 5°C (42°F) | 111 mm (4.4 inches) | 86% | moderate |