Portland Weather in July

What's the weather like in Portland (Maine) in July 2024?

The climate in Portland during July can be summarized as warm, humid and reasonably dry.

July is in the summer in Portland 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.

Portland weather averages (imperial / metric)
Daytime temperature 26.2°C 79.1°F
Nightly temperature 14.9°C 58.7°F
Average temperature 20.5°C 68.9°F
Daily sunshine 9.7 hrs
Avg rainfall 78 mm 3.1 ins
Rainy days 10 days
Sea temperature 16.5°C 61.8°F
Humidity 75%
Windspeed 13kph 8 mph

On average July is the 2nd driest month of the year in Portland with around 78mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.7 hours of sunshine per day.

July temperatures in Portland

Portland average temperature in July

July rainfall

Portland average rain in July

July hourly sunshine

Portland average rain in July

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 Portland in July 2024.