Weather in March
Temperature
The commencement of March brings an average high-temperature of a cool 10.5°C (50.9°F), marking an inconsequential divergence from February. An average low-temperature of 4.5°C (40.1°F) is observed during the March nights.Rainfall
In Portsmouth, during March, the rain falls for 8.3 days and regularly aggregates up to 52mm (2.05") of precipitation. Throughout the year, there are 103.4 rainfall days, and 699mm (27.52") of precipitation is accumulated.Sea temperature
March is the month with the coldest seawater in Portsmouth, with an average sea temperature of 8.6°C (47.5°F).Note: Swimming in 8.6°C (47.5°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In Portsmouth, the average length of the day in March is 11h and 55min.On the first day of March, sunrise is at 6:47 am and sunset at 5:45 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 6:35 pm GMT.
Sunshine
The average sunshine in March is 4.3h.UV index
In March, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 3 during March translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Portsmouth in March?
How many days does it rain in March in Portsmouth?
What month is the sea coldest in Portsmouth?
What is the water temperature in March in Portsmouth?
What is the average length of the day in March in Portsmouth?
When is the sunrise / sunset in March in Portsmouth?
How many hours of sunshine does Portsmouth have in March?
What is the UV index intensity in March in Portsmouth?
Average temperature in March
Portsmouth, United Kingdom
- Average high temperature in March: 10.5°C
The warmest months (with the highest average high temperature) are July and August (21.4°C).
The months with the lowest average high temperature are January and February (8.2°C).
- Average low temperature in March: 4.5°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).
Average rainfall in March
Portsmouth, United Kingdom
- Average rainfall in March: 51.6mm
The wettest month (with the highest rainfall) is October (86.2mm).
The driest month (with the least rainfall) is June (42mm).
Average rainfall days in March
Portsmouth, United Kingdom
- Average rainfall days in March: 8.3 days
The months with the highest number of rainy days are January and December (11.2 days).
The month with the least rainy days is July (5.4 days).
Average sea temperature in March
Portsmouth, United Kingdom
- Average sea temperature in March: 8.6°C
The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.6°C).
Average daylight in March /
Average sunshine in March
Portsmouth, United Kingdom
- Average daylight in March: 11h and 5min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in March: 4h and 2min
The month with the most sunshine is July (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average UV index in March
Portsmouth, United Kingdom
- Average UV index in March: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Portsmouth, United Kingdom
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