Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
April
Weather in April
Temperature
Noticing a change, the average high-temperature during April moves from March's wintry 5.8°C to a cool 12.3°C. In Swampscott, the average low-temperature during the month of April is a wintry 4.8°C.Humidity
April is the least humid month, with an average relative humidity of 70%.Rainfall
In Swampscott, during April, the rain falls for 14.6 days and regularly aggregates up to 73mm of precipitation. Throughout the year, there are 144.9 rainfall days, and 709mm of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1 snowfall days, in April, Swampscott aggregates 15mm of snow. Throughout the year, there are 29.9 snowfall days, and 396mm of snow is accumulated.Ocean temperature
In Swampscott, the average seawater temperature in April is 6.2°C.Note: You can swim in 6.2°C below 10°C with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C without it is tough.
Daylight
In Swampscott, the average length of the day in April is 13h and 24min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:10 pm. On the last day of April, sunrise is at 5:38 am and sunset at 7:42 pm EDT.
Sunshine
In April, the average sunshine is 7.9h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In April, a regular UV index of 3 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Swampscott in April?
What is the least humid month?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
How cold is the water in April?
What is the average length of the day in April in Swampscott?
When is the sunrise / sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Swampscott, MA
- Average high temperature in April: 12.3°C
The warmest month (with the highest average high temperature) is July (26.9°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in April: 4.8°C
The month with the highest average low temperature is July (18.5°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in April
Swampscott, MA
- Average pressure in April: 1014.8mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in April
Swampscott, MA
- Average wind speed in April: 14.8km/h
The windiest month (with the highest average wind speed) is January (17.3km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in April
Swampscott, MA
- Average humidity in April: 70%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (70%).
Average rainfall in April
Swampscott, MA
- Average rainfall in April: 73mm
The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is September (36mm).
Average rainfall days in April
Swampscott, MA
- Average rainfall days in April: 14.6 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 April
Swampscott, MA
- Average snowfall in April: 15mm
The month with the highest snowfall is February (117mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in April
Swampscott, MA
- Average snowfall days in April: 1 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 April
Swampscott, MA
- Average sea temperature in April: 6.2°C
The best month for swimming (with the highest average sea temperature) is August (19.8°C).
The coldest months (with the lowest average sea temperature) are February and March (3.8°C).
Average daylight in April /
Average sunshine in April
Swampscott, MA
- Average daylight in April: 13h and 2min
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 April: 7h and 5min
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 April
Swampscott, MA
- Average sunshine days in April: 13.2 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 April
Swampscott, MA
- Average UV index in April: 3
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 April
Swampscott, MA
- Average cloud cover in April: 47
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 April
Swampscott, MA
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).