Last updated: August 23, 2025
In December, the average temperature in Yanagawamachi-saiwaicho, Japan hovers around 2°C (36°F). Temperatures can dip to a chilly -7°C (20°F) or rise to a pleasant 17°C (63°F). Expect around 68 mm (2.7 in) of precipitation spread over 15 days, and with an average humidity of 77%, be prepared for a damp atmosphere.
In December in Yanagawamachi-saiwaicho, the average temperature is 2°C (36°F). The maximum can reach 17°C (63°F), and the minimum can be as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Yanagawamachi-saiwaicho in December, the total precipitation amount is 68 mm (2.7 in) recorded over a span of 15 days.
In Yanagawamachi-saiwaicho in December, humidity is 77%. With an average temperature of 2°C (36°F), this humidity feels like a chilly embrace, making every breath feel damp and cold, which can be challenging for traveling but adds an invigorating layer to the experience.
In Yanagawamachi-saiwaicho 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 Yanagawamachi-saiwaicho, you can check the information here.
UV Risk Categories
Weather in Yanagawamachi-saiwaicho varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yanagawamachi-saiwaicho, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 62 mm (2.4 inches) | 76% | moderate |
| February Weather | 1°C (33°F) | 52 mm (2.0 inches) | 75% | moderate |
| March Weather | 5°C (41°F) | 112 mm (4.4 inches) | 72% | high |
| April Weather | 10°C (50°F) | 106 mm (4.2 inches) | 73% | very high |
| May Weather | 16°C (60°F) | 113 mm (4.5 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 109 mm (4.3 inches) | 87% | extreme |
| July Weather | 23°C (74°F) | 248 mm (9.7 inches) | 92% | extreme |
| August Weather | 24°C (76°F) | 169 mm (6.7 inches) | 90% | extreme |
| September Weather | 20°C (68°F) | 154 mm (6.1 inches) | 84% | very high |
| October Weather | 14°C (58°F) | 207 mm (8.2 inches) | 80% | high |
| November Weather | 8°C (47°F) | 38 mm (1.5 inches) | 77% | moderate |
| December Weather | 2°C (36°F) | 68 mm (2.7 inches) | 77% | moderate |