Nantucket Weather in August

What's the weather like in Nantucket (Massachusetts) in August 2024?

The climate in Nantucket during August can be summarized as warm, humid and a little damp.

August is in the summer in Nantucket and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 24°C (76°F), whilst at night 18°C (64°F) is normal.

Nantucket weather averages (imperial / metric)
Daytime temperature 24.3°C 75.7°F
Nightly temperature 17.6°C 63.6°F
Average temperature 20.9°C 69.6°F
Daily sunshine 8.6 hrs
Avg rainfall 87 mm 3.4 ins
Rainy days 10 days
Sea temperature 20.3°C 68.6°F
Humidity 76%
Windspeed 15.1kph 9 mph

On average August is the 6th driest month of the year in Nantucket with around 87mm 3.4 inches of rain making it a a little damp 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 8.6 hours of sunshine per day.

August temperatures in Nantucket

Nantucket average temperature in August

August rainfall

Nantucket average rain in August

August hourly sunshine

Nantucket average rain in August

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 Nantucket in August 2024.