Last updated: March 2, 2024
The weather in Hachimantai, Japan, during September is characterized by an average temperature of 18°C (64°F). Highs can soar to 27°C (82°F), while lows may dip to 7°C (45°F). Typically, the humidity level in Hachimantai throughout September hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Hachimantai averages 114 mm (4.5 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 12 hours 25 minutes of daylight, with the sun shining for approximately 8 hours 2 minutes each day. Additionally, there is a 29% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Hachimantai reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 15 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 | 3 | 6 | 8 | 9 | 9 | 8 | 5 | 3 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Moderate | Low | |||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 30 min | 45 min | |||||||