Last updated: August 23, 2025
In December, the average temperature in Shosanbetsu, Japan hovers around -1°C (30°F). Be prepared for a chilly climate, as temperatures can plummet to a minimum of -9°C (15°F), while occasionally reaching up to 12°C (53°F). Expect a fair amount of rain, with an average precipitation of 210 mm (8.3 in) spread over 28 days, and maintain your warmth with an average humidity of 83%.
In December, in Shosanbetsu, the average temperature is -1°C (30°F). The maximum can reach 12°C (53°F), while the minimum can be as low as -9°C (15°F). Travelers should prepare for a chilly climate during this time, with a mix of brisk temperatures and occasional milder days.
In Shosanbetsu in December, the precipitation amount is 210 mm (8.3 in) spread over 28 days.
In Shosanbetsu in December humidity is 83%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that seeps through your layers, making outdoor activities uncomfortable and encouraging travelers to seek shelter indoors.
In Shosanbetsu 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 Shosanbetsu, you can visit Hourly UV Index in Shosanbetsu.
UV Risk Categories
Weather in Shosanbetsu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Shosanbetsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (26°F) | 108 mm (4.3 inches) | 87% | low |
| February Weather | -3°C (26°F) | 115 mm (4.5 inches) | 84% | moderate |
| March Weather | 1°C (34°F) | 94 mm (3.7 inches) | 83% | moderate |
| April Weather | 5°C (41°F) | 69 mm (2.7 inches) | 84% | high |
| May Weather | 10°C (51°F) | 93 mm (3.7 inches) | 88% | very high |
| June Weather | 14°C (58°F) | 100 mm (3.9 inches) | 88% | very high |
| July Weather | 19°C (67°F) | 119 mm (4.7 inches) | 93% | very high |
| August Weather | 21°C (69°F) | 176 mm (6.9 inches) | 94% | very high |
| September Weather | 18°C (65°F) | 111 mm (4.4 inches) | 86% | high |
| October Weather | 13°C (55°F) | 196 mm (7.7 inches) | 79% | moderate |
| November Weather | 6°C (43°F) | 243 mm (9.6 inches) | 77% | moderate |
| December Weather | -1°C (30°F) | 210 mm (8.3 inches) | 83% | low |