Watertown Weather in September

What's the weather like in Watertown (New York) in September 2024?

The climate in Watertown during September can be summarized as mild and damp.

September is in the fall / autumn in Watertown and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 10°C (50°F) is normal.

Watertown weather averages (imperial / metric)
Daytime temperature 20.7°C 69.2°F
Nightly temperature 9.8°C 49.6°F
Average temperature 15.2°C 59.4°F
Daily sunshine 6.5 hrs
Avg rainfall 102 mm 4 ins
Rainy days 12 days
Sea temperature 18.8°C 65.8°F
Humidity 77%
Windspeed 14kph 9 mph

On average September is the 2nd wettest month of the year in Watertown with around 102mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.5 hours of sunshine per day.

September temperatures in Watertown

Watertown average temperature in September

September rainfall

Watertown average rain in September

September hourly sunshine

Watertown 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 Watertown in September 2024.