April weather forecast
Portsmouth, VA

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Gold and brown trees and modern developed buildings in Downtown Portsmouth, Virginia
Gold and brown trees and modern developed buildings in Downtown Portsmouth, Virginia

Weather in April

The blossoming month of April unfolds full tilt spring weather in Portsmouth. April is considerably warmer, enabling the flora around the city to bloom after a winter dormancy. However, April remains the cloudiest month with a cloud cover of 36%. Also significant, rainfall this month stands out at 1.46" (37mm) setting a fresh aura for the city and its inhabitants. April's showers breathe life into Portsmouth, showcasing nature in all its bloomy rarities.

Temperature

Portsmouth sees an increase in the average high-temperature with the arrival of April, moving from March's fresh 54.5°F (12.5°C) to a comfortable 64.9°F (18.3°C). An average nighttime temperature of 52°F (11.1°C) is noted during the month of April.

Humidity

The average relative humidity in April in Portsmouth is 75%.

Rainfall

In April, in Portsmouth, the rain falls for 13 days. Throughout April, 1.46" (37mm) of precipitation is accumulated. Throughout the year, in Portsmouth, there are 151.9 rainfall days, and 20.35" (517mm) of precipitation is accumulated.

Snowfall

In Portsmouth, Virginia, snow does not fall in April through October.

Ocean temperature

In April, the average ocean temperature is 54.1°F (12.3°C).
Note: Beware when you're in 54.1°F (12.3°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.

Daylight

The average length of the day in April is 13h and 10min.
On the first day of April in Portsmouth, sunrise is at 6:49 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:53 pm EDT.

Sunshine

The average sunshine in April is 9.6h.

UV index

In Portsmouth, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 4 during April, leads to the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the temperature in April in Portsmouth?

The average high-temperature, in April, in Portsmouth, is 64.9°F (18.3°C), while the average low-temperature is 52°F (11.1°C).

What is the average humidity in April in Portsmouth?

The average relative humidity in April in Portsmouth, Virginia, is 75%.

How many days does it rain in April in Portsmouth?

In Portsmouth, Virginia, during April, the rain falls for 13 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in Portsmouth?

In Portsmouth, Virginia, snow does not fall in April through October.

Does it snow in Portsmouth in April?

In April, in Portsmouth, Virginia, it doesn't snow. March is the latest month when it typically snows.

How cold is the water in April in Portsmouth?

In Portsmouth, in April, the average water temperature is 54.1°F (12.3°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.

How many hours of daylight does Portsmouth have in April?

In Portsmouth, Virginia, the average day length in April is 13h and 10min.

When is the sunrise / sunset in April in Portsmouth?

On the first day of April in Portsmouth, sunrise is at 6:49 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:53 pm EDT.

How long on average sun shines in April in Portsmouth?

The average sunshine duration in April in Portsmouth, Virginia, is 9.6h.

What is the UV index reading in April in Portsmouth?

In April, the average daily maximum UV index in Portsmouth is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Portsmouth, VA

Average temperature in April - Portsmouth, VA
  • Average high temperature in April: 64.9°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.9°F).

  • Average low temperature in April: 52°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).

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Average pressure in April
Portsmouth, VA

Average pressure in April - Portsmouth, VA
  • Average pressure in April: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in April
Portsmouth, VA

Average wind speed in April - Portsmouth, VA
  • Average wind speed in April: 10.5mph

The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).

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Average humidity in April
Portsmouth, VA

Average humidity in April - Portsmouth, VA
  • Average humidity in April: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and November (74%).

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Average rainfall in April
Portsmouth, VA

Average rainfall in April - Portsmouth, VA
  • Average rainfall in April: 1.46"

The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is November (1.1").

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Average rainfall days in April
Portsmouth, VA

Average rainfall days in April - Portsmouth, VA
  • Average rainfall days in April: 13 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in April
Portsmouth, VA

Average snowfall in April - Portsmouth, VA
  • Average snowfall in April: 0"

The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in April
Portsmouth, VA

Average snowfall days in April - Portsmouth, VA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature in April
Portsmouth, VA

Average sea temperature in April - Portsmouth, VA
  • Average sea temperature in April: 54.2°F

The best month for swimming (with the highest average sea temperature) is August (80°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

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Average daylight in April /
Average sunshine in April
Portsmouth, VA

Average daylight in April / Average sunshine in April - Portsmouth, VA
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in April: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

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Average sunshine days in April
Portsmouth, VA

Average sunshine days in April - Portsmouth, VA
  • Average sunshine days in April: 14.3 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (10.8 days).

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Average UV index in April
Portsmouth, VA

Average UV index in April - Portsmouth, VA
  • Average UV index in April: 4

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in April
Portsmouth, VA

Average cloud cover in April - Portsmouth, VA
  • Average cloud cover in April: 36

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in April
Portsmouth, VA

Average visibility in April - Portsmouth, VA
  • 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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Portsmouth, Virginia, USA

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