Last updated: June 24, 2025
In Glasgow, United States, the average temperature in December hovers around 6°C (44°F). Expect a chilly minimum of -11°C (12°F) and a pleasant maximum of 22°C (73°F). Precipitation can be significant, with an average of 145 mm (5.7 in) over 11 days, and humidity often peaks at a cozy 88%. Prepare for a month of varied weather!
In December in Glasgow, the average temperature is 6°C (44°F), with maximums reaching 22°C (73°F) and minimums plummeting to as low as -11°C (12°F). Overall, this makes Glasgow a destination where travelers should prepare for a wide range of temperatures.
In Glasgow, in December, the precipitation amount is 145 mm (5.7 in) over a span of 11 days.
In Glasgow in December humidity is 88%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less inviting and requiring warm, layered clothing to stay comfortable while exploring.
In Glasgow 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 Glasgow, you can check the information here.
UV Risk Categories
Weather in Glasgow varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Glasgow, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 4°C (39°F) | 102 mm (4.0 inches) | 87% | moderate |
February Weather | 6°C (43°F) | 184 mm (7.3 inches) | 86% | high |
March Weather | 10°C (51°F) | 145 mm (5.7 inches) | 86% | high |
April Weather | 14°C (58°F) | 157 mm (6.2 inches) | 82% | very high |
May Weather | 21°C (69°F) | 123 mm (4.8 inches) | 82% | very high |
June Weather | 24°C (76°F) | 164 mm (6.5 inches) | 83% | extreme |
July Weather | 26°C (80°F) | 117 mm (4.6 inches) | 80% | extreme |
August Weather | 25°C (78°F) | 129 mm (5.1 inches) | 74% | very high |
September Weather | 23°C (73°F) | 129 mm (5.1 inches) | 71% | very high |
October Weather | 17°C (62°F) | 141 mm (5.6 inches) | 78% | high |
November Weather | 8°C (47°F) | 92 mm (3.6 inches) | 88% | moderate |
December Weather | 6°C (44°F) | 145 mm (5.7 inches) | 88% | moderate |