Last updated: August 23, 2025
In December, the average temperature in Tome, Japan hovers around 4°C (39°F). Expect chilly days with a minimum dipping to -5°C (23°F) and a max reaching 16°C (61°F). With 54 mm (2.1 in) of precipitation spread over 10 days, you'll want to keep an umbrella handy. Additionally, the climate features an average humidity of about 80%, contributing to that crisp, cool feeling in the air.
In December in Tome, the average temperature is 4°C (39°F). The maximum can reach 16°C (61°F), while the minimum can drop as low as -5°C (23°F). This makes it important for travelers to pack layers and prepare for varying weather conditions.
In Tome in December, the total precipitation amount is 54 mm (2.1 in) over the course of 10 days.
In Tome in December, humidity is 80%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring extra layers to stay warm while navigating through the misty streets.
In Tome 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 Tome, you can check the information here.
UV Risk Categories
Weather in Tome varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tome, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (35°F) | 43 mm (1.7 inches) | 80% | moderate |
| February Weather | 3°C (37°F) | 42 mm (1.7 inches) | 79% | moderate |
| March Weather | 6°C (44°F) | 100 mm (3.9 inches) | 77% | high |
| April Weather | 11°C (51°F) | 100 mm (4.0 inches) | 75% | very high |
| May Weather | 17°C (62°F) | 93 mm (3.6 inches) | 80% | very high |
| June Weather | 20°C (68°F) | 92 mm (3.6 inches) | 87% | very high |
| July Weather | 24°C (75°F) | 170 mm (6.7 inches) | 92% | extreme |
| August Weather | 25°C (78°F) | 162 mm (6.4 inches) | 92% | very high |
| September Weather | 21°C (71°F) | 114 mm (4.5 inches) | 86% | very high |
| October Weather | 16°C (60°F) | 172 mm (6.8 inches) | 82% | high |
| November Weather | 9°C (49°F) | 37 mm (1.5 inches) | 79% | moderate |
| December Weather | 4°C (39°F) | 54 mm (2.1 inches) | 80% | moderate |