Last updated: August 23, 2025
In December, the average temperature in Murayama, Japan hovers around 2°C (35°F). Expect chilly days, with minimum temperatures dipping to -8°C (19°F) and reaching a pleasant maximum of 16°C (60°F). Be prepared for some rain, as 117 mm (4.6 in) of precipitation falls across 22 days. With an average humidity of 80%, it’s a time when the air feels quite damp and crisp.
In December in Murayama, the average temperature is 2°C (35°F), with maximums reaching 16°C (60°F) and minimums plummeting to -8°C (19°F). Be prepared for a mix of chilly days and cooler nights when traveling to Murayama this month.
In Murayama in December, the precipitation amount is 117 mm (4.6 in) spread over 22 days, indicating a typically wet period for the region.
In Murayama in December humidity is 80%. With an average temperature of 2°C (35°F), this humidity feels like a heavy, damp chill that clings to your skin, making outdoor excursions uncomfortable and your clothes feel soggy, while constantly reminding you to seek shelter indoors to escape the oppressive moisture in the air.
In Murayama 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 Murayama, you can check the information here.
UV Risk Categories
Weather in Murayama varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Murayama, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 102 mm (4.0 inches) | 80% | moderate |
| February Weather | 0°C (32°F) | 88 mm (3.5 inches) | 79% | moderate |
| March Weather | 4°C (40°F) | 116 mm (4.6 inches) | 77% | high |
| April Weather | 9°C (49°F) | 114 mm (4.5 inches) | 75% | very high |
| May Weather | 15°C (60°F) | 106 mm (4.2 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 109 mm (4.3 inches) | 87% | very high |
| July Weather | 23°C (73°F) | 222 mm (8.7 inches) | 92% | extreme |
| August Weather | 24°C (76°F) | 209 mm (8.2 inches) | 92% | extreme |
| September Weather | 20°C (68°F) | 127 mm (5.0 inches) | 86% | very high |
| October Weather | 14°C (57°F) | 173 mm (6.8 inches) | 82% | high |
| November Weather | 8°C (46°F) | 68 mm (2.7 inches) | 79% | moderate |
| December Weather | 2°C (35°F) | 117 mm (4.6 inches) | 80% | moderate |