Last updated: March 2, 2024
The weather in Nantucket, United States, during October is characterized by an average temperature of 15°C (60°F). Highs can soar to 21°C (69°F), while lows may dip to 9°C (48°F). Typically, the humidity level in Nantucket throughout October hovers around 75%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In October, Nantucket averages 162 mm (6.4 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 11 hours 2 minutes of daylight, with the sun shining for approximately 7 hours 40 minutes each day. Additionally, there is a 45% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In October, the UV Index in Nantucket reaches a maximum of 6, 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 | 4 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||