The climate in Shetland during September can be summarized as mild and damp.
September is in the fall / autumn in Shetland and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 8°C (47°F) is normal.
|Daytime temperature||12.5°C 54.6°F|
|Nightly temperature||8.1°C 46.5°F|
|Average temperature||10.3°C 50.5°F|
|Daily sunshine||3.5 hrs|
|Avg rainfall||115 mm 4.5 ins|
|Rainy days||22 days|
|Sea temperature||12.1°C 53.8°F|
|Windspeed||24.5kph 15 mph|
On average September is the 5th wettest month of the year in Shetland with around 115mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.5 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 Shetland in September 2022.
|Hottest month:||August||14.2°C 57.6°F|
|Driest month:||June||59mm 2.3ins|
|Coldest month:||February||5.2°C 41.4°F|
|Wettest month:||November||140mm 5.5ins|