Last updated: March 2, 2024
The weather in Iijima, Japan, during September is characterized by an average temperature of 19°C (66°F). Highs can soar to 28°C (82°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Iijima throughout September hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Iijima averages 166 mm (6.6 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 12 hours 22 minutes of daylight, with the sun shining for approximately 8 hours 2 minutes each day. Additionally, there is a 22% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Iijima reaches a maximum of 10, 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 | 9 | 10 | 10 | 9 | 7 | 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 | ||||||