Last updated: March 2, 2024
The weather in Ryotsu-minato, Japan, during September is characterized by an average temperature of 23°C (74°F). Highs can soar to 30°C (86°F), while lows may dip to 17°C (63°F). Typically, the humidity level in Ryotsu-minato throughout September hovers around 89%.
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Average temperature
Maximum temperature
Humidity
In September, Ryotsu-minato averages 160 mm (6.3 inches) of rainfall, typically over the course of 15 rainy days. The month enjoys an average of 12 hours 24 minutes of daylight, with the sun shining for approximately 8 hours 45 minutes each day. Additionally, there is a 45% probability of sunny days during this period.
Precipitation
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Chance of sun
In September, the UV Index in Ryotsu-minato 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 | 1 | 3 | 5 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 1 | 1 | 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 | ||||||