Belmont Weather in September

What's the weather like in Belmont (Massachusetts) in September 2024?

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

September is in the fall / autumn in Belmont and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (72°F), whilst at night 10°C (51°F) is normal.

Belmont weather averages (imperial / metric)
Daytime temperature 22.5°C 72.4°F
Nightly temperature 10.4°C 50.6°F
Average temperature 16.4°C 61.5°F
Daily sunshine 8.2 hrs
Avg rainfall 90 mm 3.6 ins
Rainy days 9 days
Sea temperature 17.8°C 64.1°F
Humidity 73%
Windspeed 14kph 9 mph

On average September is the 4th driest month of the year in Belmont with around 90mm 3.6 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 8.2 hours of sunshine per day.

September temperatures in Belmont

Belmont average temperature in September

September rainfall

Belmont average rain in September

September hourly sunshine

Belmont 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 Belmont in September 2024.