September Weather in Gloucester

Last updated: March 2, 2024

The weather in Gloucester, United States, during September is characterized by an average temperature of 18°C (65°F). Highs can soar to 24°C (75°F), while lows may dip to 13°C (56°F). Typically, the humidity level in Gloucester throughout September hovers around 71%.

13°C (56°F)

Minimum temperature

18°C (65°F)

Average temperature

24°C (75°F)

Maximum temperature

71%

Humidity

Precipitation and Sunshine hours

In September, Gloucester averages 97 mm (3.8 inches) of rainfall, typically over the course of 8 rainy days. The month enjoys an average of 12 hours 26 minutes of daylight, with the sun shining for approximately 9 hours 20 minutes each day. Additionally, there is a 46% probability of sunny days during this period.

97 mm (3.8 inches)

Precipitation

8 rainy days

Rainy days

9 hours 20 minutes

Sunshine hours

46%

Chance of sun

UV Index

In September, the UV Index in Gloucester 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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 3 5 6 7 7 6 5 3 2 1 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

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