Last updated: March 2, 2024
The weather in Koshimizu, Japan, during April is characterized by an average temperature of 4°C (39°F). Highs can soar to 19°C (66°F), while lows may dip to -6°C (21°F). Typically, the humidity level in Koshimizu throughout April hovers around 83%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Koshimizu averages 72 mm (2.8 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 26 minutes of daylight, with the sun shining for approximately 9 hours 24 minutes each day. Additionally, there is a 36% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Koshimizu reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 25 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 | 2 | 4 | 5 | 7 | 7 | 7 | 6 | 4 | 3 | 1 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||