Last updated: June 18, 2025
In Athens, Canada, the average temperature in December hovers around -3°C (27°F), providing a chilly backdrop for the month. Temperatures can dip to a frigid -28°C (-18°F), while occasionally reaching a milder 14°C (58°F). Prepare for 11 days of precipitation, totaling 83 mm (3.3 in), coupled with a high average humidity of 89%. Stay warm and ready for the elements!
In December in Athens, the average temperature is -3°C (27°F). The maximum can reach 14°C (58°F), and the minimum can be as low as -28°C (-18°F). Travelers should come prepared for a range of temperatures, from chilly days to extremely cold nights.
In Athens in December, the precipitation amount is 83 mm (3.3 in) over the course of 11 days.
In Athens in December, humidity is 89%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and breath a visible frost as you navigate through the wintery landscape.
In Athens in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Athens, you can visit Hourly UV Index in Athens.
UV Risk Categories
Weather in Athens varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Athens, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 76 mm (3.0 inches) | 93% | low |
| February Weather | -6°C (22°F) | 75 mm (3.0 inches) | 93% | moderate |
| March Weather | -1°C (30°F) | 77 mm (3.0 inches) | 86% | moderate |
| April Weather | 6°C (42°F) | 120 mm (4.7 inches) | 82% | very high |
| May Weather | 12°C (54°F) | 99 mm (3.9 inches) | 75% | very high |
| June Weather | 17°C (63°F) | 83 mm (3.3 inches) | 68% | very high |
| July Weather | 21°C (71°F) | 115 mm (4.5 inches) | 69% | very high |
| August Weather | 21°C (70°F) | 95 mm (3.7 inches) | 67% | very high |
| September Weather | 17°C (62°F) | 59 mm (2.3 inches) | 72% | high |
| October Weather | 10°C (51°F) | 134 mm (5.3 inches) | 83% | moderate |
| November Weather | 3°C (37°F) | 97 mm (3.8 inches) | 88% | moderate |
| December Weather | -3°C (27°F) | 83 mm (3.3 inches) | 89% | low |