Glastonbury Weather in September

What's the weather like in Glastonbury (Connecticut) in September 2024?

The climate in Glastonbury during September can be summarized as mild and a little damp.

September is in the fall / autumn in Glastonbury and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (74°F), whilst at night 11°C (52°F) is normal.

Glastonbury weather averages (imperial / metric)
Daytime temperature 23.5°C 74.2°F
Nightly temperature 11.4°C 52.4°F
Average temperature 17.4°C 63.3°F
Daily sunshine 8 hrs
Avg rainfall 95 mm 3.8 ins
Rainy days 9 days
Sea temperature 19.6°C 67.3°F
Humidity 74%
Windspeed 13.7kph 9 mph

On average September is the 6th wettest month of the year in Glastonbury with around 95mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

September temperatures in Glastonbury

Glastonbury average temperature in September

September rainfall

Glastonbury average rain in September

September hourly sunshine

Glastonbury average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Glastonbury in September 2024.