Deer Isle Weather in July

The climate in Deer Isle during July can be summarized as warm, humid and a little damp.

July is in the summer in Deer Isle and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 15°C (59°F) is normal.

On average July is the 2nd driest month of the year in Deer Isle with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.5 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 Deer Isle in July 2024.