April weather forecastBar Harbor, ME

April
Weather in April
April introduces factors of pleasant spring weather to Bar Harbor whilst retaining some elements of winter. Only 2.44" (62mm) of snowfall persists in this month, marking the complete transition from winter to spring. Longer hours of daylight brighten the city, allowing more time for sightseeing and other outdoor activities. As the snow recedes and gives way to blooming flowers, Bar Harbor begins to welcome visitors who prefer moderate temperatures. At the same time, the city prepares for the upcoming season of summer, promising a completely different experience.Temperature
Bar Harbor's transition into April is marked by a rise in the average high-temperature, advancing from a wintry 37.2°F (2.9°C) in March to a chilly 48.6°F (9.2°C). Bar Harbor observes an average nighttime low-temperature of 35.6°F (2°C) during the month of April.Humidity
The average relative humidity in April is 77%.Rainfall
In Bar Harbor, during April, the rain falls for 15.5 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Bar Harbor, during the entire year, the rain falls for 142.1 days and collects up to 32.28" (820mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Bar Harbor, during April, snow falls for 3.1 days and regularly aggregates up to 2.44" (62mm) of snow. In Bar Harbor, during the entire year, snow falls for 48.1 days and aggregates up to 23.82" (605mm) of snow.Ocean temperature
In Bar Harbor, Maine, the average seawater temperature in April is 40.6°F (4.8°C).Note: In relation to swimming, this scenario is excessively cold, perilous, and a direct threat to life. Hypothermia strikes rapidly in the absence of insulated waterproof gear.
Daylight
In Bar Harbor, the average length of the day in April is 13h and 30min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:00 pm. On the last day of April, sunrise is at 5:23 am and sunset at 7:36 pm EDT.
Sunshine
In April, the average sunshine is 7.2h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 3 in April, converts into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. 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
Average temperature in April
Bar Harbor, ME
- Average high temperature in April: 48.6°F
The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in April: 35.6°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in April
Bar Harbor, 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
Bar Harbor, ME
- Average wind speed in April: 9.2mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in April
Bar Harbor, ME
- Average humidity in April: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in April
Bar Harbor, ME
- Average rainfall in April: 3.5"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").
Average rainfall days in April
Bar Harbor, ME
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in April
Bar Harbor, ME
- Average snowfall in April: 2.44"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Bar Harbor, ME
- Average snowfall days in April: 3.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Bar Harbor, ME
- Average sea temperature in April: 40.7°F
The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38.6°F).
Average daylight in April /
Average sunshine in April
Bar Harbor, ME
- Average daylight in April: 13h and 30min
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 12min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in April
Bar Harbor, ME
- Average sunshine days in April: 11.2 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in April
Bar Harbor, 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
Bar Harbor, ME
- Average cloud cover in April: 54
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in April
Bar Harbor, ME
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





