Nantucket Weather in January

What's the weather like in Nantucket (Massachusetts) in January 2025?

The climate in Nantucket during January can be summarized as cold and damp.

January is in the winter in Nantucket and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing 3°C (38°F), whilst at night -4°C (25°F) is normal.

Nantucket weather averages (imperial / metric)
Daytime temperature 3.4°C 38°F
Nightly temperature -4°C 24.9°F
Average temperature -0.3°C 31.5°F
Daily sunshine 5.7 hrs
Avg rainfall 101 mm 4 ins
Rainy days 12 days
Sea temperature 5.8°C 42.4°F
Humidity 67%
Windspeed 19.8kph 12 mph

On average January is the 3rd wettest month of the year in Nantucket with around 101mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.7 hours of sunshine per day.

January temperatures in Nantucket

Nantucket average temperature in January

January rainfall

Nantucket average rain in January

January hourly sunshine

Nantucket average rain in January

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 January 2025.

Other monthly averages

Best places to visit in January

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Nantucket weather stats

Nantucket weather statistics
Hottest month: July 24.3°C 75.7°F
Driest month: June 58mm 2.3ins
Sunniest month: October 7.4hrs
Coldest month: January 3.2°C 37.8°F
Wettest month: December 114mm 4.5ins
Map showing location of Nantucket (41.28346, -70.09946) Nantucket map pin © Google

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