Last updated: March 2, 2024
The weather in Ilam, Nepal, during September is characterized by an average temperature of 21°C (71°F). Highs can soar to 28°C (83°F), while lows may dip to 17°C (63°F). Typically, the humidity level in Ilam throughout September hovers around 93%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Ilam averages 375 mm (14.8 inches) of rainfall, typically over the course of 28 rainy days. The month enjoys an average of 12 hours 17 minutes of daylight, with the sun shining for approximately 8 hours 42 minutes each day. Additionally, there is a 23% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Ilam reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 10 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 | 3 | 6 | 9 | 11 | 12 | 11 | 9 | 5 | 3 | 1 | 1 | 0 | 0 |
| Exposure | Moderate | High | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 30 min | 25 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||