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
Belfast sees an increase in average high-temperatures during April, moving from an icy 37°F (2.8°C) in March to a chilly 48.9°F (9.4°C). Belfast experiences a mean temperature of 34.5°F (1.4°C) during April nights.Humidity
In Belfast, Maine, the average relative humidity in April is 78%.Rainfall
In Belfast, during April, the rain falls for 15 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 141.1 rainfall days, and 24.29" (617mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Belfast, during April, snow falls for 2.9 days and regularly aggregates up to 2.17" (55mm) of snow. Throughout the year, there are 44.3 snowfall days, and 16.81" (427mm) of snow is accumulated.Ocean temperature
In Belfast, the average seawater temperature in April is 40.6°F (4.8°C).Note: In the sport of swimming, this scenario is extremely cold, treacherous, and fatal. If not protected by insulated waterproof clothing, hypothermia ensues quickly.
Daylight
The average length of the day in April is 13h and 30min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:03 pm. On the last day of April, sunrise is at 5:26 am and sunset at 7:39 pm EDT.
Sunshine
In April, the average sunshine is 7.1h.UV index
In Belfast, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In April, a daily UV index of 3 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April?
How many days does it rain in April in Belfast?
How much does it snow in April?
How cold is the water in April?
How many hours of daylight does Belfast have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Belfast, ME
- Average high temperature in April: 48.9°F
The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in April: 34.5°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in April
Belfast, ME
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Belfast, ME
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in April
Belfast, ME
- Average humidity in April: 78%
The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).
Average rainfall in April
Belfast, ME
- Average rainfall in April: 2.64"
The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").
Average rainfall days in April
Belfast, ME
- Average rainfall days in April: 15 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in April
Belfast, ME
- Average snowfall in April: 2.17"
The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Belfast, ME
- Average snowfall days in April: 2.9 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Belfast, ME
- Average sea temperature in April: 40.7°F
The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).
Average daylight in April /
Average sunshine in April
Belfast, ME
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in April
Belfast, ME
- Average sunshine days in April: 11.7 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in April
Belfast, ME
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Belfast, ME
- Average cloud cover in April: 54
The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in April
Belfast, ME
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Belfast, Maine, USA
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