Portsmouth
Virginia, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Portsmouth, VA

A high view of gold and brown trees and modern and developed buildings in Downtown Portsmouth, Virginia, glorious cloudy sky lighting up the city
A high view of gold and brown trees and modern and developed buildings in Downtown Portsmouth, Virginia, glorious cloudy sky lighting up the city
January, like December, is another chilly winter month in Portsmouth, Virginia, with average temperature fluctuating between 48°F (8.9°C) and 32.7°F (0.4°C). January is the coldest month, with an average high-temperature of 48°F (8.9°C) and an average low-temperature of 32.7°F (0.4°C). Weather in January »
The last month of the winter, February, is a cool month in Portsmouth, Virginia, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 50.9°F (10.5°C). In February, the average high-temperature is almost the same as in January - a cool 50.9°F (10.5°C). Weather in February »

The first month of the spring, March, is a mild month in Portsmouth, Virginia, with temperature in the range of an average high of 58.3°F (14.6°C) and an average low of 40.5°F (4.7°C). In Portsmouth, the average high-temperature marginally rises, from a cool 50.9°F (10.5°C) in February, to a mild 58.3°F (14.6°C). Weather in March »

April in Portsmouth, Virginia, is an enjoyable spring month, with average temperature varying between 67.6°F (19.8°C) and 48.9°F (9.4°C). In Portsmouth, the average high-temperature in April increases, from a mild 58.3°F (14.6°C) in March, to an enjoyable 67.6°F (19.8°C). Weather in April »

The last month of the spring, May, is a warm month in Portsmouth, Virginia, with temperature in the range of an average low of 57.9°F (14.4°C) and an average high of 75.4°F (24.1°C). In May, the average high-temperature slightly increases, from an enjoyable 67.6°F (19.8°C) in April, to a warm 75.4°F (24.1°C). Weather in May »

June, the first month of the summer, in Portsmouth, is also a moderately hot month, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 83.5°F (28.6°C). In June, the average high-temperature slightly increases, from 75.4°F (24.1°C) in May, to a still moderately hot 83.5°F (28.6°C). Weather in June »

July in Portsmouth, Virginia, is a tropical summer month, with average temperature varying between 72°F (22.2°C) and 87.4°F (30.8°C). July is the warmest month, with an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 72°F (22.2°C). Weather in July »

August, the last month of the summer, in Portsmouth, is another warm month, with average temperature varying between 70.7°F (21.5°C) and 85.1°F (29.5°C). In August, the average high-temperature is practically the same as in July - a warm 85.1°F (29.5°C). Weather in August »

September, the first month of the autumn, in Portsmouth, is also a moderately hot month, with average temperature fluctuating between 79.3°F (26.3°C) and 65.3°F (18.5°C). In Portsmouth, the average high-temperature in September slightly decreases, from a moderately hot 85.1°F (29.5°C) in August, to a still warm 79.3°F (26.3°C). Weather in September »

October, like September, is another pleasant autumn month in Portsmouth, Virginia, with average temperature ranging between max 70.2°F (21.2°C) and min 54°F (12.2°C). In Portsmouth, the average high-temperature in October drops, from a warm 79.3°F (26.3°C) in September, to an agreeable 70.2°F (21.2°C). Weather in October »

November, the last month of the autumn, in Portsmouth, is also an enjoyable month, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 61.2°F (16.2°C). In November, the average high-temperature drops, from a pleasant 70.2°F (21.2°C) in October, to an enjoyable 61.2°F (16.2°C). Weather in November »

The first month of the winter, December, is still a cool month in Portsmouth, Virginia, with average temperature ranging between max 52.2°F (11.2°C) and min 36.1°F (2.3°C). In December, the average high-temperature drops, from an enjoyable 61.2°F (16.2°C) in November, to a cool 52.2°F (11.2°C). Weather in December »

What is the coldest month in Portsmouth?

January is the coldest month in Portsmouth, with an average high-temperature of 48°F (8.9°C) and an average low-temperature of 32.7°F (0.4°C).

How much does it rain in Portsmouth?

In Portsmouth, during the entire year, the rain falls for 117 days and collects up to 46.5" (1181.9mm) of precipitation.

When does it snow in Portsmouth?

Months with snowfall in Portsmouth, Virginia, are January through March and December.

How much does it snow in Portsmouth?

Throughout the year, in Portsmouth, Virginia, there are 4 snowfall days, and 5.8" (147.4mm) of snow is accumulated.

When does it snow the most in Portsmouth?

The month with the most snowfall is January when snow falls for 1.6 days and typically aggregates up to 2.4" (61mm) of snow.

What is the driest month in Portsmouth?

February is the month with the least rainfall in Portsmouth, Virginia. Rain falls for 9.5 days and accumulates 3.1" (79.2mm) of precipitation.

What month is the ocean coldest in Portsmouth?

The month with the coldest seawater in Portsmouth is February, with an average ocean temperature of 44.6°F (7°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 least humid month in Portsmouth?

April is the least humid month in Portsmouth, with an average relative humidity of 62.8%.

When are the longest days in Portsmouth?

The month with the longest days is June, with an average of 14.7h of daylight.

What month has the most sunshine in Portsmouth?

With an average of 9.3h of sunshine, June has the most sunshine of the year.

What is the warmest month in Portsmouth?

July is the warmest month in Portsmouth, with an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 72°F (22.2°C).

What is the most humid month in Portsmouth?

August is the most humid month in Portsmouth, with an average relative humidity of 75.2%.

What is the rainiest month in Portsmouth?

August is the month with the most rainfall in Portsmouth, Virginia. Rain falls for 10.1 days and accumulates 5.5" (140.2mm) of precipitation.

What month is the ocean warmest in Portsmouth?

With an average ocean temperature of 80.1°F (26.7°C), August is the month with the warmest seawater in Portsmouth, Virginia. For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Portsmouth?

With an average of 9.7h of daylight, December has the shortest days of the year in Portsmouth.

What is the month with the least sunshine in Portsmouth?

With an average of 5.2h of sunshine, December has the least sunshine of the year in Portsmouth.
Average temperature - Portsmouth, VA
Average humidity - Portsmouth, VA
Average rainfall - Portsmouth, VA
Average rainfall days - Portsmouth, VA

The month with the highest number of rainy days is July (11.1 days).
The month with the lowest number of rainy days is October (7.6 days).

Average snowfall - Portsmouth, VA

The month with the highest snowfall is January (2.4").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days - Portsmouth, VA

The month with the highest number of snowfall days is January (1.6 days).
Months with the lowest number of snowfall days are May, June, July, August, September, October and November (0 days).

Average sea temperature - Portsmouth, VA

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).

Average daylight / Average sunshine - Portsmouth, VA