Last updated: March 2, 2024
The weather in Herculaneum, United States, during October is characterized by an average temperature of 15°C (59°F). Highs can soar to 32°C (90°F), while lows may dip to 0°C (32°F). Typically, the humidity level in Herculaneum throughout October hovers around 76%.
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Average temperature
Maximum temperature
Humidity
In October, Herculaneum averages 104 mm (4.1 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 11 hours 9 minutes of daylight, with the sun shining for approximately 7 hours 49 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
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Chance of sun
In October, the UV Index in Herculaneum reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 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 | 1 | 2 | 3 | 5 | 6 | 6 | 6 | 4 | 2 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||