Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The average high-temperature increases in May, moving from a chilly 48.7°F (9.3°C) in April to a moderate 57.7°F (14.3°C). Gloucester's temperature during May nights registers a minor decrease to an average low of 49.5°F (9.7°C).Humidity
In Gloucester, the average relative humidity in May is 80%.Rainfall
In Gloucester, during May, the rain falls for 16.3 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Gloucester, 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 Gloucester, 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 the month, sunrise is at 5:36 am and sunset at 7:43 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:13 pm EDT.
Sunshine
In Gloucester, the average sunshine in May is 8.6h.UV index
In May, the average daily maximum UV index in Gloucester is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What are the temperatures in Gloucester in May?
What is the average humidity in May in Gloucester?
How many days does it rain in May in Gloucester?
When it does not snow in Gloucester?
Does it snow in Gloucester in May?
What is the ocean temperature in May in Gloucester?
What is the average length of the day in May in Gloucester?
When is the sunrise / sunset in May in Gloucester?
How many hours of sunshine does Gloucester have in May?
What is the UV index reading in May in Gloucester?
Average temperature in May
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, MA
- Average daylight in May: 14h and 4min
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 4min
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
Gloucester, 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
Gloucester, 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
Gloucester, 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
Gloucester, 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).
Gloucester, Massachusetts, USA
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