April weather forecastMystic, CT
April
Weather in April
April experiences a significant leap in temperatures to a welcoming 52.5°F (11.4°C), signaling the peak of the short-lived spring. With the snow completely melted away, locals and tourists can now enjoy full days outside. The landscape transitions from the drab winter tones to vibrant springtime hues, with flowering trees accentuating Mystic's quaint charm. The longer daylight hours, approximately 13.4 hours, provide ample time for sightseeing and other outdoor activities. Mystic blooms in April, making it an ideal month to experience the city's scenic beauty.Temperature
As Mystic welcomes April, the average high-temperature sees a rise, transitioning from a frosty 43.3°F (6.3°C) in March to a cool 52.5°F (11.4°C). The average nighttime temperature lowers to a wintry 42.4°F (5.8°C) throughout April.Humidity
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 74%.Rainfall
In Mystic, during April, the rain falls for 16 days and regularly aggregates up to 3.23" (82mm) of precipitation. Throughout the year, there are 166.1 rainfall days, and 34.09" (866mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.7 snowfall days, in April, Mystic aggregates 0.2" (5mm) of snow. In Mystic, during the entire year, snow falls for 24.7 days and aggregates up to 7.87" (200mm) of snow.Ocean temperature
In Mystic, the average seawater temperature in April is 44.2°F (6.8°C).Note: Immersing oneself in 44.2°F (6.8°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In Mystic, the average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:13 pm. On the last day of April, sunrise is at 5:45 am and sunset at 7:44 pm EDT.
Sunshine
The average sunshine in April is 8.4h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Mystic, CT
- Average high temperature in April: 52.5°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in April
Mystic, CT
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Mystic, CT
- Average wind speed in April: 11.1mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in April
Mystic, CT
- Average humidity in April: 74%
The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in April
Mystic, CT
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in April
Mystic, CT
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (10.1 days).
Average snowfall in April
Mystic, CT
- Average snowfall in April: 0.2"
The month with the highest snowfall is March (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Mystic, CT
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in April
Mystic, CT
- Average sea temperature in April: 44.2°F
The best month for swimming (with the highest average sea temperature) is August (70.3°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).
Average daylight in April /
Average sunshine in April
Mystic, CT
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in April
Mystic, CT
- Average sunshine days in April: 12.4 days
The month with the most sunshine days is November (16.5 days).
The months with the least sunshine days are June and July (11.7 days).
Average UV index in April
Mystic, CT
- 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 and December (UV index 2).
Average cloud cover in April
Mystic, CT
- Average cloud cover in April: 44
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Mystic, CT
- 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).
