Last updated: August 23, 2025
In December, the average temperature in Agios Ioannis, Greece hovers around 6°C (43°F), with a minimum dipping to -7°C (20°F) and a max reaching up to 17°C (63°F). Expect about 101 mm (4.0 in) of precipitation spread over 10 days, complemented by a high average humidity of 87%. Prepare for a moist and cool month ahead!
In December in Agios Ioannis, the average temperature is 6°C (43°F). The maximum can reach 17°C (63°F), while the minimum can drop to as low as -7°C (20°F). Be prepared for a range of temperatures if you're traveling during this time!
In Agios Ioannis in December, the precipitation amount is 101 mm (4.0 in) spread over the course of 10 days.
In Agios Ioannis in December, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.
In Agios Ioannis 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 Agios Ioannis, you can visit Hourly UV Index in Agios Ioannis.
UV Risk Categories
Weather in Agios Ioannis varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Agios Ioannis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 63 mm (2.5 inches) | 88% | low |
| February Weather | 7°C (44°F) | 53 mm (2.1 inches) | 83% | moderate |
| March Weather | 9°C (49°F) | 102 mm (4.0 inches) | 81% | high |
| April Weather | 13°C (56°F) | 67 mm (2.6 inches) | 71% | very high |
| May Weather | 19°C (66°F) | 69 mm (2.7 inches) | 74% | very high |
| June Weather | 22°C (73°F) | 82 mm (3.2 inches) | 63% | very high |
| July Weather | 26°C (79°F) | 47 mm (1.9 inches) | 60% | very high |
| August Weather | 26°C (80°F) | 35 mm (1.4 inches) | 47% | very high |
| September Weather | 22°C (72°F) | 25 mm (1.0 inches) | 57% | very high |
| October Weather | 16°C (60°F) | 73 mm (2.9 inches) | 76% | high |
| November Weather | 11°C (52°F) | 88 mm (3.5 inches) | 85% | moderate |
| December Weather | 6°C (43°F) | 101 mm (4.0 inches) | 87% | low |