Weather in Massachusetts, United States in May

So you're interested in going to Massachusetts, United States in May

May is a slightly cold and slightly rainy time for sunbathing in Massachusetts. May 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 May.

Temperature in Massachusetts in May

The average maximum temperature in Massachusetts in May is 17°. The average maximum temperature is 13° in the previous month and 22° in the next month.

The average temperature in Massachusetts in May is 13°. The average temperature ranges is in the previous month and 18° in the next month.

The average minimum temperature in Massachusetts in May is . The minimum temperature is in the previous month and 14° in the next month.

Sunshine in Massachusetts in May

The average day light hours per day in Massachusetts in May are 14.6 and there are 6.5 hours of sunshine per day on average during May making it a quite sunny month with some cloud cover.

The ultraviolet index in Massachusetts in May is typically 8.4 during May. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Massachusetts in May

The average sea water temperature in Massachusetts in May is 10.9° which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Rainfall in Massachusetts in May

The average total rainfall in Massachusetts in May is 9.3cm and on average there are 14.8 rainy days in May making it a slightly wet time to visit the beach.

Humidity in Massachusetts in May

The maximum dew point (an indicator of humidity) in Massachusetts in May is 11° which is very comfortable. The dew point is in the previous month and 16° in the next month.

The average maximum relative humidity in Massachusetts in May is typically 93.4%. The maximum relative humidity is 89.6% in the previous month and 94.5% in the next month.

The average relative humidity in Massachusetts in May is typically 78.5%. The average relative humidity is 72.7% in the previous month and 81.2% in the next month.

Wind Speed in Massachusetts in May

The average maximum wind speed in Massachusetts in May is typically 24kmh. The average maximum wind speed is 27kmh in the previous month and 22kmh in the next month.

The average wind speed in Massachusetts in May is typically 13kmh. The average wind speed is 14kmh in the previous month and 12kmh in the next month.

The average wind direction in Massachusetts in May is from the South West.

Monthly Averages

Suggested Beaches in May

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