Duncan Weather in June

The climate in Duncan during June can be summarized as hot and a little damp.

June is in the summer in Duncan and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a warm 32°C (89°F), whilst at night 19°C (66°F) is normal.

On average June is the 2nd wettest month of the year in Duncan with around 89mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.4 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 Duncan in June 2025.