The climate in Dunoon during September can be summarized as mild and very wet.
September is in the fall / autumn in Dunoon and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (58°F), whilst at night 9°C (48°F) is normal.
|Daytime temperature||14.6°C 58.2°F|
|Nightly temperature||8.7°C 47.6°F|
|Average temperature||11.6°C 52.9°F|
|Daily sunshine||3.8 hrs|
|Avg rainfall||208 mm 8.2 ins|
|Rainy days||21 days|
|Sea temperature||14.5°C 58.1°F|
|Windspeed||17.6kph 11 mph|
On average September is the 3rd wettest month of the year in Dunoon with around 208mm 8.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.8 hours of sunshine per day.
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 Dunoon in September 2022.
|Hottest month:||July||17°C 62.6°F|
|Driest month:||April||100mm 3.9ins|
|Coldest month:||February||5.4°C 41.7°F|
|Wettest month:||October||216mm 8.5ins|