The climate in Grimsby during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Grimsby and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 18°C (64°F), whilst at night 10°C (51°F) is normal.
|Daytime temperature||17.8°C 64°F|
|Nightly temperature||10.4°C 50.7°F|
|Average temperature||14.1°C 57.4°F|
|Daily sunshine||5.1 hrs|
|Avg rainfall||53 mm 2.1 ins|
|Rainy days||13 days|
|Sea temperature||14.8°C 58.6°F|
|Windspeed||19.4kph 12 mph|
On average September is the 5th wettest month of the year in Grimsby with around 53mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.1 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 Grimsby in September 2022.
|Hottest month:||August||19.6°C 67.3°F|
|Driest month:||February||43mm 1.7ins|
|Coldest month:||January||6.2°C 43.2°F|
|Wettest month:||November||63mm 2.5ins|