Nantucket Weather in December

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

The climate in Nantucket during December can be summarized as cool and damp.

December is in the winter in Nantucket and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 6°C (43°F), whilst at night -1°C (30°F) is normal.

Nantucket weather averages (imperial / metric)
Daytime temperature 6.1°C 42.9°F
Nightly temperature -1.3°C 29.8°F
Average temperature 2.4°C 36.3°F
Daily sunshine 5.1 hrs
Avg rainfall 114 mm 4.5 ins
Rainy days 13 days
Sea temperature 8.3°C 46.9°F
Humidity 68%
Windspeed 19.4kph 12 mph

On average December is the wettest month of the year in Nantucket with around 114mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.1 hours of sunshine per day.

December temperatures in Nantucket

Nantucket average temperature in December

December rainfall

Nantucket average rain in December

December hourly sunshine

Nantucket average rain in December

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 December 2024.