April weather forecast
Harwich Port, MA

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Weather in April

April is a frosty spring month in Harwich Port, Massachusetts, with an average temperature fluctuating between 46.9°F (8.3°C) and 42.4°F (5.8°C).

Temperature

The shift into April is marked by a modest rise in the average high-temperature, moving from March's cold 41°F (5°C) to a frosty 46.9°F (8.3°C). Harwich Port experiences a subtle drop in temperature during the April nights, recording an average of 42.4°F (5.8°C).

Humidity

The average relative humidity in April is 80%.

Rainfall

In Harwich Port, during April, the rain falls for 13.1 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 142.4 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Harwich Port are January through April, November and December. April is the last month it regularly snows. During 0.8 snowfall days, in April, Harwich Port aggregates 0.04" (1mm) of snow. Throughout the year, there are 20.8 snowfall days, and 4.37" (111mm) of snow is accumulated.

Ocean temperature

In April, the average ocean temperature in Harwich Port is 43.5°F (6.4°C).
Note: Swimming in 43.5°F (6.4°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The average length of the day in April in Harwich Port is 13h and 22min.
On the first day of April in Harwich Port, sunrise is at 6:21 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:37 pm EDT.

Sunshine

In April, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in April in Harwich Port is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 3 during April translates into the following guidance:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the temperature in April in Harwich Port?

The average high-temperature, in April, in Harwich Port, is 46.9°F (8.3°C), while the average low-temperature is 42.4°F (5.8°C).

What is the average humidity in April in Harwich Port?

In April, the average relative humidity in Harwich Port is 80%.

How many days does it rain in April in Harwich Port?

In Harwich Port, Massachusetts, in April, it is raining for 13.1 days, with typically 2.05" (52mm) of accumulated precipitation.

What is the last month it snows in Harwich Port?

April is the last month it regularly snows in Harwich Port. During 0.8 snowfall days, in April, Harwich Port aggregates 0.04" (1mm) of snow.

What is the ocean temperature in April in Harwich Port?

In Harwich Port, the average seawater temperature in April is 43.5°F (6.4°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in April in Harwich Port?

In Harwich Port, Massachusetts, the average day length in April is 13h and 22min.

When is the sunrise / sunset in April in Harwich Port?

In April, on the first day of the month, sunrise is at 6:21 am and sunset at 7:06 pm. On the last day of the month, in Harwich Port, Massachusetts, sunrise is at 5:37 am and sunset at 7:37 pm EDT.

How many hours of sunshine does Harwich Port have in April?

In April, the average sunshine duration in Harwich Port is 8.3h.

What is the UV index intensity in April in Harwich Port?

In April, the average daily maximum UV index in Harwich Port is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Harwich Port, MA

Average temperature in April - Harwich Port, MA
  • Average high temperature in April: 46.9°F

The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°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 (31.6°F).

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Average pressure in April
Harwich Port, MA

Average pressure in April - Harwich Port, 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).

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Average wind speed in April
Harwich Port, MA

Average wind speed in April - Harwich Port, MA
  • Average wind speed in April: 15.2mph

The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).

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Average humidity in April
Harwich Port, MA

Average humidity in April - Harwich Port, MA
  • Average humidity in April: 80%

The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in April
Harwich Port, MA

Average rainfall in April - Harwich Port, MA
  • Average rainfall in April: 2.05"

The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").

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Average rainfall days in April
Harwich Port, MA

Average rainfall days in April - Harwich Port, MA
  • Average rainfall days in April: 13.1 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).

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Average snowfall in April
Harwich Port, MA

Average snowfall in April - Harwich Port, MA
  • Average snowfall in April: 0.04"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in April
Harwich Port, MA

Average snowfall days in April - Harwich Port, MA
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in April
Harwich Port, MA

Average sea temperature in April - Harwich Port, 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).

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Average daylight in April /
Average sunshine in April
Harwich Port, MA

Average daylight in April / Average sunshine in April - Harwich Port, 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 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

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Average sunshine days in April
Harwich Port, MA

Average sunshine days in April - Harwich Port, MA
  • Average sunshine days in April: 14.5 days

The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).

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Average UV index in April
Harwich Port, MA

Average UV index in April - Harwich Port, 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).

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Average cloud cover in April
Harwich Port, MA

Average cloud cover in April - Harwich Port, MA
  • Average cloud cover in April: 46

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in April
Harwich Port, MA

Average visibility in April - Harwich Port, 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).

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Harwich Port, Massachusetts, USA

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