Augusta Weather in September

The climate in Augusta during September can be summarized as mild and a little damp.

September is in the spring in Augusta and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around 17°C (63°F), whilst at night 10°C (50°F) is normal.

On average September is the 5th wettest month of the year in Augusta with around 93mm 3.7 inches of rain making it a a little 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 7 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 Augusta in September 2025.