Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average snowfall in March
- Average snowfall days in March
- Average sea temperature in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
With the onset of March, Portsmouth observes a minor temperature ascent, with the average high-temperature adjusting from February's chilly 49.1°F (9.5°C) to a fresh 54.5°F (12.5°C). During March, Portsmouth sees a mean low-temperature of 42.4°F (5.8°C).Humidity
In March, the average relative humidity is 75%.Rainfall
In Portsmouth, during March, the rain falls for 13.9 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 151.9 rainfall days, and 20.35" (517mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. March is the last month it regularly snows. During 0.4 snowfall days, in March, Portsmouth aggregates 0.04" (1mm) of snow. Throughout the year, there are 5.3 snowfall days, and 1.18" (30mm) of snow is accumulated.Ocean temperature
In Portsmouth, the average seawater temperature in March is 47.1°F (8.4°C).Note: Dipping in 47.1°F (8.4°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.
Daylight
In Portsmouth, the average length of the day in March is 11h and 59min.On the first day of the month, sunrise is at 6:34 am and sunset at 5:59 pm EST. On the last day of March, sunrise is at 6:51 am and sunset at 7:27 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
In March, the average sunshine in Portsmouth is 6.9h.UV index
In Portsmouth, the average daily maximum UV index in March is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In March, a daily UV index of 3 turns into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Portsmouth in March?
What is the average humidity in March?
How many days does it rain in March?
What is the last month it snows in Portsmouth?
What is the ocean temperature in March?
How many hours of daylight does Portsmouth have in March?
When are sunrise and sunset in March?
When does Daylight Saving Time (DST) start in March in Portsmouth?
How many hours of sunshine does Portsmouth have in March?
How high is the UV index in March?
Average temperature in March
Portsmouth, VA
- Average high temperature in March: 54.5°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 March: 42.4°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).
Average pressure in March
Portsmouth, VA
- Average pressure in March: 30.08"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).
Average wind speed in March
Portsmouth, VA
- Average wind speed in March: 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).
Average humidity in March
Portsmouth, VA
- Average humidity in March: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and November (74%).
Average rainfall in March
Portsmouth, VA
- Average rainfall in March: 1.34"
The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in March
Portsmouth, VA
- Average rainfall days in March: 13.9 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).
Average snowfall in March
Portsmouth, VA
- Average snowfall in March: 0.04"
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").
Average snowfall days in March
Portsmouth, VA
- Average snowfall days in March: 0.4 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).
Average sea temperature in March
Portsmouth, VA
- Average sea temperature in March: 47.2°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).
Average daylight in March /
Average sunshine in March
Portsmouth, VA
- Average daylight in March: 12h and 0min
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 March: 6h and 5min
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).
Average sunshine days in March
Portsmouth, VA
- Average sunshine days in March: 15.3 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).
Average UV index in March
Portsmouth, VA
- Average UV index in March: 3
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).
Average cloud cover in March
Portsmouth, VA
- Average cloud cover in March: 44
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in March
Portsmouth, VA
- Average visibility in March: 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).
Portsmouth, Virginia, USA
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