Last updated: June 24, 2025
In December, the average temperature in Mar-Mac, United States is a crisp 9°C (49°F), with a range that can dip as low as -7°C (20°F) and rise to a pleasant 25°C (78°F). You'll want to prepare for some rain, as the area sees approximately 107 mm (4.2 in) of precipitation over 9 days. With an average humidity level of 86%, it's a month that’s sure to keep you cozy and prepared for varied weather conditions!
In December in Mar-Mac, the average temperature is 9°C (49°F), with maximums reaching 25°C (78°F) and minimums dropping as low as -7°C (20°F). Be prepared for a wide range of temperatures while traveling, ensuring you pack accordingly for both warm and chilly days.
In Mar-Mac in December, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.
In Mar-Mac in December, humidity is 86%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill in the air, making travel uncomfortable as the moisture clings to your skin and thickens the atmosphere, creating a sense of heaviness that can tire you quickly.
In Mar-Mac in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Mar-Mac for better planning.
UV Risk Categories
Weather in Mar-Mac varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mar-Mac, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (45°F) | 89 mm (3.5 inches) | 85% | moderate |
| February Weather | 10°C (51°F) | 85 mm (3.3 inches) | 82% | high |
| March Weather | 12°C (54°F) | 70 mm (2.7 inches) | 81% | very high |
| April Weather | 17°C (63°F) | 98 mm (3.9 inches) | 80% | very high |
| May Weather | 22°C (72°F) | 112 mm (4.4 inches) | 81% | extreme |
| June Weather | 25°C (77°F) | 128 mm (5.0 inches) | 81% | extreme |
| July Weather | 27°C (81°F) | 112 mm (4.4 inches) | 81% | extreme |
| August Weather | 26°C (79°F) | 165 mm (6.5 inches) | 80% | very high |
| September Weather | 24°C (75°F) | 147 mm (5.8 inches) | 79% | very high |
| October Weather | 19°C (67°F) | 61 mm (2.4 inches) | 80% | very high |
| November Weather | 12°C (53°F) | 85 mm (3.3 inches) | 85% | moderate |
| December Weather | 9°C (49°F) | 107 mm (4.2 inches) | 86% | moderate |