Last updated: June 24, 2025
In Georgetown, United States, the average temperature for December is a mild 11°C (53°F). However, it's important to be prepared for range fluctuations, as temperatures can dip to a brisk -5°C (24°F) or rise to a warm 26°C (80°F). Expect some rain, with 129 mm (5.1 in) of precipitation over approximately 10 days. Don’t forget, the humidity is notably high at 86%, making the air feel quite moist throughout the month.
In December, in Georgetown, the average temperature is 11°C (53°F), with maximums reaching 26°C (80°F) and minimums dropping as low as -5°C (24°F). This varied climate makes Georgetown an interesting destination for travelers seeking both warm and chilly experiences.
In Georgetown in December, the precipitation amount is 129 mm (5.1 in) over a span of 10 days.
In Georgetown in December, humidity is 86%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket that dampens the air, making traveling uncomfortable and a bit stifling.
In Georgetown 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 Georgetown for better planning.
UV Risk Categories
Weather in Georgetown varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Georgetown, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 10°C (50°F) | 104 mm (4.1 inches) | 83% | moderate |
| February Weather | 14°C (57°F) | 108 mm (4.3 inches) | 82% | high |
| March Weather | 16°C (61°F) | 91 mm (3.6 inches) | 79% | very high |
| April Weather | 19°C (66°F) | 116 mm (4.6 inches) | 77% | very high |
| May Weather | 24°C (75°F) | 99 mm (3.9 inches) | 74% | extreme |
| June Weather | 26°C (79°F) | 102 mm (4.0 inches) | 70% | extreme |
| July Weather | 28°C (82°F) | 109 mm (4.3 inches) | 78% | extreme |
| August Weather | 27°C (81°F) | 114 mm (4.5 inches) | 78% | extreme |
| September Weather | 26°C (79°F) | 106 mm (4.2 inches) | 79% | very high |
| October Weather | 21°C (71°F) | 111 mm (4.4 inches) | 74% | very high |
| November Weather | 14°C (57°F) | 58 mm (2.3 inches) | 83% | high |
| December Weather | 11°C (53°F) | 129 mm (5.1 inches) | 86% | moderate |