Hamilton Weather in October

The climate in Hamilton during October can be summarized as mild and a little damp.

October is in the fall / autumn in Hamilton and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 9°C (49°F) is normal.

On average October is the driest month of the year in Hamilton with around 83mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.9 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 Hamilton in October 2025.