May weather forecastRockport, MA
May
Weather in May
The last month of the spring, May, is a mild month in Rockport, Massachusetts, with an average temperature varying between 57.7°F (14.3°C) and 49.5°F (9.7°C).Temperature
May marks a rise in the average high-temperature, moving from April's frosty 48.7°F (9.3°C) to a moderate 57.7°F (14.3°C). The temperature during May nights demonstrates a small drop from the daytime highs, settling to an average of 49.5°F (9.7°C).Humidity
The average relative humidity in May is 80%.Rainfall
In Rockport, Massachusetts, in May, it is raining for 16.3 days, with typically 2.2" (56mm) of accumulated precipitation. In Rockport, during the entire year, the rain falls for 150.9 days and collects up to 30.75" (781mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
In Rockport, in May, the average water temperature is 48°F (8.9°C).Note: Diving into 48°F (8.9°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
The average length of the day in May is 14h and 38min.On the first day of May, sunrise is at 5:35 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:13 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In Rockport, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in May leads to these guidelines:
Exercise prevention - Warding off sunburn is urged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rockport, MA
- Average high temperature in May: 57.7°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Rockport, 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 (29.92"Hg).
Average wind speed in May
Rockport, MA
- Average wind speed in May: 10.3mph
The windiest month (with the highest average wind speed) is January (15.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.9mph).
Average humidity in May
Rockport, MA
- Average humidity in May: 80%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in May
Rockport, MA
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in May
Rockport, MA
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in May
Rockport, MA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Rockport, MA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in May
Rockport, MA
- Average sea temperature in May: 48°F
The best month for swimming (with the highest average sea temperature) is August (66.4°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in May /
Average sunshine in May
Rockport, MA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in May
Rockport, MA
- Average sunshine days in May: 13.3 days
The months with the most sunshine days are September and November (16.7 days).
The month with the least sunshine days is February (13.1 days).
Average UV index in May
Rockport, MA
- Average UV index in May: 5
The months with the highest UV index are July and August (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
Rockport, MA
- Average cloud cover in May: 43
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Rockport, 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).
