Last updated: March 2, 2024
The weather in Kusatsu, Japan, during January is characterized by an average temperature of -2°C (29°F). Highs can soar to 8°C (46°F), while lows may dip to -10°C (14°F). Typically, the humidity level in Kusatsu throughout January hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Kusatsu averages 74 mm (2.9 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 9 hours 57 minutes of daylight, with the sun shining for approximately 5 hours 54 minutes each day. Additionally, there is a 33% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Kusatsu reaches a maximum of 4, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 2 | 1 | 0 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||