Last updated: August 27, 2025
In Koyulhisar, Turkey, the average temperature for December hovers around -1°C (31°F), with minimums dipping to -15°C (5°F) and a maximum reaching 13°C (56°F). This month witnesses approximately 88 mm (3.4 in) of precipitation spread over 13 days, contributing to an average humidity level of 82%. Be prepared for a chilly and damp atmosphere!
In December in Koyulhisar, the average temperature is -1°C (31°F). The maximum can reach 13°C (56°F), and the minimum can be as low as -15°C (5°F). Visitors should prepare for cold weather conditions but can expect a few mild days ideal for outdoor activities.
In Koyulhisar in December, the precipitation amount is 88 mm (3.4 in) occurring over 13 days.
In Koyulhisar in December humidity is 82%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, biting chill that seeps through layers of clothing, making outdoor activities uncomfortable and urging travelers to seek shelter or warm beverages to combat the cold.
In Koyulhisar 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 Koyulhisar, you can check the information here.
UV Risk Categories
Weather in Koyulhisar varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Koyulhisar, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (26°F) | 74 mm (2.9 inches) | 83% | moderate |
| February Weather | -2°C (29°F) | 63 mm (2.5 inches) | 84% | moderate |
| March Weather | 1°C (34°F) | 94 mm (3.7 inches) | 81% | very high |
| April Weather | 7°C (45°F) | 71 mm (2.8 inches) | 79% | very high |
| May Weather | 12°C (53°F) | 119 mm (4.7 inches) | 81% | very high |
| June Weather | 16°C (61°F) | 60 mm (2.4 inches) | 79% | extreme |
| July Weather | 19°C (66°F) | 14 mm (0.6 inches) | 73% | extreme |
| August Weather | 19°C (66°F) | 22 mm (0.9 inches) | 63% | very high |
| September Weather | 16°C (61°F) | 20 mm (0.8 inches) | 67% | very high |
| October Weather | 11°C (52°F) | 45 mm (1.8 inches) | 78% | high |
| November Weather | 4°C (40°F) | 47 mm (1.9 inches) | 84% | moderate |
| December Weather | -1°C (31°F) | 88 mm (3.4 inches) | 82% | moderate |