December is a very cold and rainy time for sunbathing in Massachusetts, and not recommended. December is too cold for swimming in Massachusetts for any length of time, unless you have a wetsuit. Consider visiting Massachusetts in the months of June, July, August, September, for the best beach weather.
Also consider one of our other suggestions for December.
The average maximum temperature in Massachusetts in December is 7°. The average maximum temperature is 11° in the previous month and 3° in the next month.
The average temperature in Massachusetts in December is 3°. The average temperature ranges is 7° in the previous month and -0° in the next month.
The average minimum temperature in Massachusetts in December is -1°. The minimum temperature is 4° in the previous month and -4° in the next month.
The average day light hours per day in Massachusetts in December are 9.1 and there are 4.8 hours of sunshine per day on average during December making it a sunny month that is overcast at times.
The ultraviolet index in Massachusetts in December is typically 1.4 during December. An ultraviolet index reading of 0 to 2 indicates low danger from the sun's UV rays for the average person. Most people will be able to spend several hours in the sun with out a problem, however unprotected skin risks burning in less than 1 hour. Wear sunglasses on bright days. Only those that burn easily will need to apply sunscreen. Watch out for relections from water that may increase ultraviolet exposure.
The average sea water temperature in Massachusetts in December is 16.5° which is cool for swimming, shorty wetsuit may help you extend your time in the water.
The average total rainfall in Massachusetts in December is 12cm and on average there are 15.8 rainy days in December making it a wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Massachusetts in December is 3° which is a bit dry for some. The dew point is 7° in the previous month and -1° in the next month.
The average maximum relative humidity in Massachusetts in December is typically 87.3%. The maximum relative humidity is 87.8% in the previous month and 86.1% in the next month.
The average relative humidity in Massachusetts in December is typically 73.8%. The average relative humidity is 73.7% in the previous month and 71.7% in the next month.
The average maximum wind speed in Massachusetts in December is typically 27kmh. The average maximum wind speed is 25kmh in the previous month and 27kmh in the next month.
The average wind speed in Massachusetts in December is typically 15kmh. The average wind speed is 14kmh in the previous month and 15kmh in the next month.
The average wind direction in Massachusetts in December is from the West.
