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
May's onset witnesses a shift in the average high-temperature, moving from a cool 54.1°F (12.3°C) in April to an enjoyable 64.8°F (18.2°C). During May nights, Swampscott records an average temperature of 49.8°F (9.9°C).Humidity
In Swampscott, the average relative humidity in May is 73%.Rainfall
In Swampscott, Massachusetts, during May, the rain falls for 15.4 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Swampscott, during the entire year, the rain falls for 144.9 days and collects up to 27.91" (709mm) of precipitation.Snowfall
May through September are months without snowfall in Swampscott.Ocean temperature
In Swampscott, the average seawater temperature in May is 49.1°F (9.5°C).Note: While a brief time in 49.1°F (9.5°C) at 55.4°F (13°C) is already bracing, plunging below 50°F (10°C) can severely affect breathing and introduce a cold shock, relying on your physical state.
Daylight
In May, the average length of the day in Swampscott is 14h and 38min.On the first day of the month, sunrise is at 5:37 am and sunset at 7:43 pm. On the last day of May, sunrise is at 5:09 am and sunset at 8:13 pm EDT.
Sunshine
In May, the average sunshine in Swampscott is 8.3h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 5 in May transforms into this advice:
Ensure safety - Sun damage prevention is strongly urged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What is the usual temperature for Swampscott in May?
What is the average humidity in May in Swampscott?
How many days does it rain in May in Swampscott?
When it does not snow in Swampscott?
Does it snow in Swampscott in May?
What is the water temperature in May in Swampscott?
What is the average length of the day in May in Swampscott?
When are sunrise and sunset in May in Swampscott?
How long on average sun shines in May in Swampscott?
How high is the UV index in May in Swampscott?
Average temperature in May
Swampscott, MA
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in May: 49.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Swampscott, 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
Swampscott, MA
- Average wind speed in May: 7.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Swampscott, MA
- Average humidity in May: 73%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (70%).
Average rainfall in May
Swampscott, MA
- Average rainfall in May: 1.93"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in May
Swampscott, MA
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in May
Swampscott, MA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Swampscott, MA
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in May
Swampscott, 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 (38.8°F).
Average daylight in May /
Average sunshine in May
Swampscott, MA
- Average daylight in May: 14h and 4min
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 6min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in May
Swampscott, MA
- Average sunshine days in May: 14.1 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in May
Swampscott, MA
- Average UV index in May: 5
The months with the highest UV index are June, 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
Swampscott, MA
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Swampscott, 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).
Swampscott, Massachusetts, USA
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