Last updated: August 23, 2025
In December, the average temperature in Ichinoseki, Japan hovers around 2°C (37°F). You can expect a wide temperature range, with lows dipping to -8°C (19°F) and highs reaching up to 15°C (60°F). Keep your umbrella handy, as this month typically sees 65 mm (2.6 in) of precipitation over approximately 14 days. With an average humidity level of 80%, it's a time where cozy layers and a warm drink are your best companions.
In December in Ichinoseki, the average temperature is 2°C (37°F). The maximum can reach 15°C (60°F), while the minimum can drop as low as -8°C (19°F). It's advisable to pack warm clothing and be prepared for chilly weather if you're traveling during this time.
In Ichinoseki in December, the precipitation amount is 65 mm (2.6 in) over the course of 14 days.
In Ichinoseki in December, humidity is 80%. With an average temperature of 2°C (37°F), this humidity feels like a brisk chill that pierces through your layers, making every step outside feel invigorating yet uncomfortable, especially for travelers unaccustomed to such dampness in the cold.
In Ichinoseki 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 Ichinoseki, you can check the information here.
UV Risk Categories
Weather in Ichinoseki varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ichinoseki, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (33°F) | 47 mm (1.9 inches) | 80% | moderate |
| February Weather | 1°C (35°F) | 53 mm (2.1 inches) | 79% | moderate |
| March Weather | 5°C (42°F) | 102 mm (4.0 inches) | 77% | high |
| April Weather | 10°C (50°F) | 106 mm (4.2 inches) | 75% | very high |
| May Weather | 16°C (61°F) | 100 mm (3.9 inches) | 80% | very high |
| June Weather | 19°C (67°F) | 105 mm (4.1 inches) | 87% | very high |
| July Weather | 23°C (74°F) | 167 mm (6.6 inches) | 92% | very high |
| August Weather | 24°C (76°F) | 162 mm (6.4 inches) | 92% | very high |
| September Weather | 20°C (69°F) | 120 mm (4.7 inches) | 86% | very high |
| October Weather | 15°C (58°F) | 160 mm (6.3 inches) | 82% | high |
| November Weather | 8°C (47°F) | 49 mm (1.9 inches) | 79% | moderate |
| December Weather | 2°C (37°F) | 65 mm (2.6 inches) | 80% | moderate |