Saint Helens Weather in October

The climate in Saint Helens during October can be summarized as mild and damp.

October is in the fall / autumn in Saint Helens and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 5°C (41°F) is normal.

On average October is the 6th wettest month of the year in Saint Helens with around 105mm 4.1 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 5.3 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 Saint Helens in October 2025.