Newton Mearns Weather in September

The climate in Newton Mearns during September can be summarized as mild and wet.

September is in the fall / autumn in Newton Mearns and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 8°C (47°F) is normal.

On average September is the 2nd wettest month of the year in Newton Mearns with around 147mm 5.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.

On the flip side this corresponds to an average of 4 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 Newton Mearns in September 2024.