May weather forecastProvincetown, MA
May
Weather in May
May provides a welcome relief from the cold months, with temperatures soaring to 55°F (12.8°C), making it much warmer than April. Provincetown, Massachusetts enjoys long, sunny days as spring is in full bloom. Rainfall reduces from April's high, balancing between sun and rain to keep the city green and blooming. Warmer and longer days combined with decreased rainfall make May ideal for outdoor activities. The wind conditions stabilize, and the sea gets relatively warmer, allowing some room for water activities.Temperature
May showcases a minor temperature ascent, adjusting from April's frosty 46.9°F (8.3°C) to a cool 55°F (12.8°C). Provincetown, during May nights, experiences a subtle shift to a low average of 49.6°F (9.8°C) from the day's heat.Humidity
The average relative humidity in May is 83%.Rainfall
In Provincetown, in May, during 16.2 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Provincetown, Massachusetts, during the entire year, the rain falls for 157.1 days and collects up to 32.17" (817mm) of precipitation.Snowfall
In Provincetown, snow does not fall in May through October.Ocean temperature
In May, the average ocean temperature is 48.9°F (9.4°C).Note: In 48.9°F (9.4°C), even brief exposure to 55.4°F (13°C) feels biting, and anything less than 50°F (10°C) risks cold shock and impaired breathing, considering one's health.
Daylight
In May, the average length of the day is 14h and 35min.On the first day of May, sunrise is at 5:35 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:09 pm EDT.
Sunshine
In Provincetown, the average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 4 in May translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Provincetown, MA
- Average high temperature in May: 55°F
The warmest month (with the highest average high temperature) is August (71.8°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in May
Provincetown, MA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Provincetown, MA
- Average wind speed in May: 12.5mph
The windiest month (with the highest average wind speed) is January (17.8mph).
The calmest month (with the lowest average wind speed) is August (10.9mph).
Average humidity in May
Provincetown, MA
- Average humidity in May: 83%
The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).
Average rainfall in May
Provincetown, MA
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in May
Provincetown, MA
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in May
Provincetown, MA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Provincetown, MA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Provincetown, MA
- Average sea temperature in May: 49°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in May /
Average sunshine in May
Provincetown, MA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in May
Provincetown, MA
- Average sunshine days in May: 14 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in May
Provincetown, MA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Provincetown, MA
- Average cloud cover in May: 44
The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Provincetown, MA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
