Montesano Weather in September

What's the weather like in Montesano (Washington) in September 2024?

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

September is in the fall / autumn in Montesano and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 9°C (47°F) is normal.

Montesano weather averages (imperial / metric)
Daytime temperature 20.7°C 69.3°F
Nightly temperature 8.5°C 47.3°F
Average temperature 14.6°C 58.3°F
Daily sunshine 7.6 hrs
Avg rainfall 90 mm 3.5 ins
Rainy days 10 days
Sea temperature 14.4°C 57.9°F
Humidity 80%
Windspeed 10.8kph 7 mph

On average September is the 4th driest month of the year in Montesano with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.6 hours of sunshine per day.

September temperatures in Montesano

Montesano average temperature in September

September rainfall

Montesano average rain in September

September hourly sunshine

Montesano 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 Montesano in September 2024.