South Boston Weather in December

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

The climate in South Boston during December can be summarized as cold and damp.

December is in the winter in South Boston and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing 4°C (39°F), whilst at night -5°C (24°F) is normal.

South Boston weather averages (imperial / metric)
Daytime temperature 4°C 39.1°F
Nightly temperature -4.6°C 23.8°F
Average temperature -0.3°C 31.5°F
Daily sunshine 5.1 hrs
Avg rainfall 105 mm 4.1 ins
Rainy days 12 days
Sea temperature 7.9°C 46.2°F
Humidity 66%
Windspeed 18.4kph 11 mph

On average December is the 2nd wettest month of the year in South Boston with around 105mm 4.1 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 5.1 hours of sunshine per day.

December temperatures in South Boston

South Boston average temperature in December

December rainfall

South Boston average rain in December

December hourly sunshine

South Boston 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 South Boston in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

South Boston weather stats

South Boston weather statistics
Hottest month: July 27.6°C 81.7°F
Driest month: July 75mm 3ins
Sunniest month: July 10.2hrs
Coldest month: January 1.2°C 34.2°F
Wettest month: November 111mm 4.4ins
Map showing location of South Boston (42.33343, -71.04949) South Boston map pin © Google

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