Last updated: August 23, 2025
In January, the average temperature in Hiranai, Japan hovers around 0°C (32°F), with extremes ranging from a brisk -10°C (14°F) to a mild 7°C (44°F). Expect a moderate amount of precipitation, totaling 85 mm (3.4 in) over 17 days, contributing to an average humidity level of 79%. Embrace the chill while staying prepared for the elements!
In January in Hiranai, the average temperature is 0°C (32°F). Maximums can reach 7°C (44°F), while minimums can dip as low as -10°C (14°F). It's advisable to pack warm clothing and be prepared for potentially chilly weather if you're traveling during this time.
In Hiranai in January, the total precipitation amount is 85 mm (3.4 in), spread over 17 days.
In Hiranai in January humidity is 79%. With an average temperature of 0°C (32°F), this humidity feels like a heavy blanket wrapping around you, making every step outside feel like a challenge while also leaving a chill that cuts through your bones—it's a reminder to dress warmly yet prepare for the dampness that clings to your clothes, making travel less comfortable and more of an adventure.
In Hiranai in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Hiranai, you can visit Hourly UV Index in Hiranai.
UV Risk Categories
Weather in Hiranai varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hiranai, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 85 mm (3.4 inches) | 79% | low |
| February Weather | 0°C (32°F) | 100 mm (3.9 inches) | 78% | moderate |
| March Weather | 4°C (39°F) | 89 mm (3.5 inches) | 77% | moderate |
| April Weather | 8°C (47°F) | 96 mm (3.8 inches) | 78% | very high |
| May Weather | 13°C (56°F) | 96 mm (3.8 inches) | 86% | very high |
| June Weather | 17°C (63°F) | 116 mm (4.6 inches) | 91% | very high |
| July Weather | 21°C (71°F) | 124 mm (4.9 inches) | 95% | very high |
| August Weather | 23°C (74°F) | 186 mm (7.3 inches) | 97% | extreme |
| September Weather | 20°C (69°F) | 110 mm (4.3 inches) | 89% | very high |
| October Weather | 15°C (59°F) | 158 mm (6.2 inches) | 81% | high |
| November Weather | 9°C (48°F) | 92 mm (3.6 inches) | 78% | moderate |
| December Weather | 2°C (37°F) | 141 mm (5.6 inches) | 77% | low |