Last updated: August 23, 2025
In December, the average temperature in Miyoshi, Japan hovers around 5°C (41°F). Expect some variability with a minimum of -2°C (28°F) and a maximum reaching 19°C (67°F). Rainfall can be expected during approximately 13 days, totaling around 69 mm (2.7 in) of precipitation. With an average humidity of 82%, the atmosphere can feel quite damp—perfect for cozy days indoors!
In December in Miyoshi, the average temperature is 5°C (41°F). The maximum can reach 19°C (67°F), while the minimum can drop as low as -2°C (28°F). Travelers should be prepared for a range of weather conditions, making it essential to pack accordingly for both mild and chilly moments.
In Miyoshi in December, the precipitation amount is 69 mm (2.7 in) over the course of 13 days.
In Miyoshi in December, humidity is 82%. With an average temperature of 5°C (41°F), this humidity feels like a chilly, damp blanket wrapping around you, making outdoor activities less enjoyable and making it essential to dress in layers to stay warm while navigating the wet conditions.
In Miyoshi in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Miyoshi for better planning.
UV Risk Categories
Weather in Miyoshi varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Miyoshi, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 61 mm (2.4 inches) | 82% | moderate |
| February Weather | 4°C (39°F) | 67 mm (2.6 inches) | 79% | high |
| March Weather | 8°C (47°F) | 116 mm (4.5 inches) | 73% | very high |
| April Weather | 13°C (55°F) | 123 mm (4.9 inches) | 74% | extreme |
| May Weather | 18°C (64°F) | 115 mm (4.5 inches) | 84% | extreme |
| June Weather | 21°C (70°F) | 188 mm (7.4 inches) | 86% | extreme |
| July Weather | 25°C (77°F) | 389 mm (15.3 inches) | 92% | extreme |
| August Weather | 27°C (80°F) | 257 mm (10.1 inches) | 92% | extreme |
| September Weather | 22°C (72°F) | 230 mm (9.1 inches) | 87% | very high |
| October Weather | 16°C (62°F) | 159 mm (6.3 inches) | 85% | high |
| November Weather | 10°C (51°F) | 40 mm (1.6 inches) | 84% | moderate |
| December Weather | 5°C (41°F) | 69 mm (2.7 inches) | 82% | moderate |