Last updated: March 2, 2024
The weather in Rusutsu, Japan, during September is characterized by an average temperature of 17°C (62°F). Highs can soar to 26°C (78°F), while lows may dip to 6°C (43°F). Typically, the humidity level in Rusutsu throughout September hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Rusutsu averages 116 mm (4.6 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 12 hours 27 minutes of daylight, with the sun shining for approximately 9 hours 0 minutes each day. Additionally, there is a 32% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In September, the UV Index in Rusutsu reaches a maximum of 8, 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 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||