Last updated: June 24, 2025
The average temperature in Saint George, United States during December hovers around 11°C (53°F), with a brisk minimum of -5°C (23°F) and an occasional sunny peak at 27°C (81°F). Expect about 135 mm (5.3 in) of precipitation spread across 9 days, contributing to an average humidity of 87%. Make sure to pack accordingly!
In December, in Saint George, the average temperature is 11°C (53°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -5°C (23°F). This varied climate makes it important for travelers to pack for both warm and cold conditions.
In Saint George in December, the precipitation amount is 135 mm (5.3 in) spread over 9 days.
In Saint George in December, humidity is 87%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that clings to your skin, making it uncomfortable for traveling as it combines the cool air with a sense of heaviness, leaving you yearning for warmth and dryness.
In Saint George 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 Saint George for better planning.
UV Risk Categories
Weather in Saint George varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint George, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 10°C (50°F) | 73 mm (2.9 inches) | 86% | moderate |
February Weather | 13°C (56°F) | 98 mm (3.9 inches) | 81% | high |
March Weather | 15°C (59°F) | 75 mm (3.0 inches) | 81% | very high |
April Weather | 19°C (66°F) | 109 mm (4.3 inches) | 79% | very high |
May Weather | 23°C (74°F) | 96 mm (3.8 inches) | 75% | extreme |
June Weather | 26°C (79°F) | 122 mm (4.8 inches) | 75% | extreme |
July Weather | 27°C (82°F) | 166 mm (6.6 inches) | 80% | extreme |
August Weather | 27°C (81°F) | 144 mm (5.7 inches) | 81% | extreme |
September Weather | 25°C (78°F) | 117 mm (4.6 inches) | 83% | very high |
October Weather | 21°C (70°F) | 64 mm (2.5 inches) | 78% | very high |
November Weather | 14°C (57°F) | 66 mm (2.6 inches) | 85% | high |
December Weather | 11°C (53°F) | 135 mm (5.3 inches) | 87% | moderate |