Last updated: August 23, 2025
In Utashinai, Japan, the average temperature in December hovers around -4°C (25°F). Expect chilly days, with minimums plunging to -17°C (1°F) and maximums reaching up to 13°C (55°F). This month brings considerable precipitation, averaging 102 mm (4.0 in) over 25 days, paired with a high average humidity of 80%. Prepare for a cold, wet month ahead!
In December in Utashinai, the average temperature is -4°C (25°F). Maximums can reach 13°C (55°F), while minimums can drop as low as -17°C (1°F). Visitors should prepare for a wide range of temperatures and dress accordingly for their travels.
In Utashinai in December, the precipitation amount is 102 mm (4.0 in) spread over the course of 25 days.
In Utashinai in December humidity is 80%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill, making traveling outdoors quite uncomfortable as the damp air clings to your skin, intensifying the cold and sapping your warmth with every gust of wind.
In Utashinai 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 Utashinai, you can visit Hourly UV Index in Utashinai.
UV Risk Categories
Weather in Utashinai varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Utashinai, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (19°F) | 58 mm (2.3 inches) | 84% | low |
| February Weather | -6°C (22°F) | 77 mm (3.0 inches) | 83% | moderate |
| March Weather | 0°C (32°F) | 86 mm (3.4 inches) | 81% | high |
| April Weather | 6°C (43°F) | 75 mm (2.9 inches) | 81% | high |
| May Weather | 12°C (54°F) | 97 mm (3.8 inches) | 86% | very high |
| June Weather | 16°C (60°F) | 99 mm (3.9 inches) | 87% | very high |
| July Weather | 20°C (69°F) | 104 mm (4.1 inches) | 93% | very high |
| August Weather | 20°C (69°F) | 184 mm (7.3 inches) | 95% | very high |
| September Weather | 17°C (62°F) | 105 mm (4.1 inches) | 88% | very high |
| October Weather | 10°C (51°F) | 142 mm (5.6 inches) | 83% | moderate |
| November Weather | 3°C (38°F) | 139 mm (5.5 inches) | 79% | moderate |
| December Weather | -4°C (25°F) | 102 mm (4.0 inches) | 80% | low |