September Weather in Great Barrington

Last updated: March 2, 2024

The weather in Great Barrington, United States, during September is characterized by an average temperature of 17°C (64°F). Highs can soar to 29°C (85°F), while lows may dip to 4°C (40°F). Typically, the humidity level in Great Barrington throughout September hovers around 72%.

4°C (40°F)

Minimum temperature

17°C (64°F)

Average temperature

29°C (85°F)

Maximum temperature

72%

Humidity

Precipitation and Sunshine hours

In September, Great Barrington averages 111 mm (4.4 inches) of rainfall, typically over the course of 9 rainy days. The month enjoys an average of 12 hours 25 minutes of daylight, with the sun shining for approximately 9 hours 20 minutes each day. Additionally, there is a 41% probability of sunny days during this period.

111 mm (4.4 inches)

Precipitation

9 rainy days

Rainy days

9 hours 20 minutes

Sunshine hours

41%

Chance of sun

UV Index

In September, the UV Index in Great Barrington reaches a maximum of 8, 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.

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 4 6 7 8 7 5 3 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

Compare Great Barrington's Climate with Cities Worldwide