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
Entering April, Osterville notices a subtle temperature elevation, with the average high-temperature advancing from March's cold 41.5°F (5.3°C) to a chilly 47.1°F (8.4°C). During April, the nighttime temperatures align closely with the daytime averages, measuring a cold 42.4°F (5.8°C).Humidity
The average relative humidity in April is 79%.Rainfall
In Osterville, in April, it is raining for 15.8 days, with typically 3.03" (77mm) of accumulated precipitation. In Osterville, during the entire year, the rain falls for 157.2 days and collects up to 31.77" (807mm) of precipitation.Snowfall
January through April and December are months with snowfall. April is the last month it regularly snows. During 0.6 snowfall days, in April, Osterville aggregates 0.12" (3mm) of snow. In Osterville, during the entire year, snow falls for 24.1 days and aggregates up to 6.1" (155mm) of snow.Ocean temperature
In Osterville, Massachusetts, the average seawater temperature in April is 43.5°F (6.4°C).Note: Dipping in 43.5°F (6.4°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.
Daylight
The average length of the day in April is 13h and 22min.On the first day of April, sunrise is at 6:23 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:38 pm EDT.
Sunshine
In Osterville, the average sunshine in April is 8.4h.UV index
In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
What is the ocean temperature in April?
What is the average length of the day in April in Osterville?
When are sunrise and sunset in April?
How many hours of sunshine does Osterville have in April?
How high is the UV index in April?
Average temperature in April
Osterville, MA
- Average high temperature in April: 47.1°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in April
Osterville, 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
Osterville, MA
- Average wind speed in April: 14.1mph
The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).
Average humidity in April
Osterville, MA
- Average humidity in April: 79%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (74%).
Average rainfall in April
Osterville, MA
- Average rainfall in April: 3.03"
The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").
Average rainfall days in April
Osterville, MA
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in April
Osterville, MA
- Average snowfall in April: 0.12"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in April
Osterville, MA
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Osterville, 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
Osterville, MA
- Average daylight in April: 13h and 2min
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 2min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in April
Osterville, MA
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in April
Osterville, 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
Osterville, MA
- Average cloud cover in April: 45
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Osterville, 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).
Osterville, Massachusetts, USA
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