Last updated: March 2, 2024
The weather in Gloucester, United States, during September is characterized by an average temperature of 25°C (78°F). Highs can soar to 29°C (84°F), while lows may dip to 21°C (70°F). Typically, the humidity level in Gloucester throughout September hovers around 80%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Gloucester averages 202 mm (7.9 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 12 hours 20 minutes of daylight, with the sun shining for approximately 9 hours 54 minutes each day. Additionally, there is a 57% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Gloucester reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 | 1 | 2 | 4 | 7 | 8 | 9 | 8 | 7 | 4 | 2 | 1 | 1 |
| 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 | ||||||