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
Weather in April
Temperature
April's arrival sees a mild rise in the average high-temperature, transitioning from March's cold 41.4°F (5.2°C) to a frosty 47.1°F (8.4°C). The temperature during April nights demonstrates a small drop from the daytime highs, settling to an average of 42.4°F (5.8°C).Humidity
In April, the average relative humidity is 79%.Rainfall
In South Yarmouth, in April, during 12.3 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In South Yarmouth, during the entire year, the rain falls for 129 days and collects up to 14.21" (361mm) of precipitation.Snowfall
Months with snowfall in South Yarmouth are January through April and December. April is the last month it regularly snows. During 0.4 snowfall days, in April, South Yarmouth aggregates 0.04" (1mm) of snow. In South Yarmouth, during the entire year, snow falls for 20.8 days and aggregates up to 2.6" (66mm) of snow.Ocean temperature
In South Yarmouth, Massachusetts, in April, the average water temperature is 43.5°F (6.4°C).Note: With an efficient thermal swimsuit, one can navigate 43.5°F (6.4°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.
Daylight
The average length of the day in April is 13h and 22min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:06 pm. On the last day of April, sunrise is at 5:37 am and sunset at 7:38 pm EDT.
Sunshine
The average sunshine in April is 8.4h.UV index
In South Yarmouth, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April?
How much does it rain in South Yarmouth in April?
What is the last month it snows?
How cold is the water in April?
How many hours of daylight does South Yarmouth have in April?
When are sunrise and sunset in April?
How many hours of sunshine does South Yarmouth have in April?
What is the UV index intensity in April?
Average temperature in April
South Yarmouth, MA
- Average high temperature in April: 47.1°F
The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in April
South Yarmouth, MA
- Average pressure in April: 29.98"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 April
South Yarmouth, MA
- Average wind speed in April: 14.4mph
The windiest month (with the highest average wind speed) is January (16.8mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).
Average humidity in April
South Yarmouth, MA
- Average humidity in April: 79%
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 April
South Yarmouth, MA
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is August (0.94").
Average rainfall days in April
South Yarmouth, MA
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in April
South Yarmouth, MA
- Average snowfall in April: 0.04"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in April
South Yarmouth, MA
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
South Yarmouth, MA
- Average sea temperature in April: 43.5°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in April /
Average sunshine in April
South Yarmouth, 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 12min).
- Average sunshine in April: 8h and 2min
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 36min).
Average sunshine days in April
South Yarmouth, MA
- Average sunshine days in April: 15.3 days
The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in April
South Yarmouth, MA
- Average UV index in April: 3
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 April
South Yarmouth, MA
- Average cloud cover in April: 45
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
South Yarmouth, MA
- Average visibility in April: 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).
South Yarmouth, Massachusetts, USA
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