Belfast
United Kingdom
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Belfast, United Kingdom

A close-up view of the Northern Ireland City Hall located in Belfast, United Kingdom
A close-up view of the Northern Ireland City Hall located in Belfast, United Kingdom
March, the first month of the spring, in Belfast, is also a frosty month, with average temperature ranging between max 9.5°C (49.1°F) and min 2.9°C (37.2°F).

Temperature

In Belfast, the average high-temperature in March is essentially the same as in February - a still frosty 9.5°C (49.1°F). In March, the average low-temperature is 2.9°C (37.2°F).

Rainfall

In Belfast, United Kingdom, during March, the rain falls for 14 days and regularly aggregates up to 67mm (2.6") of precipitation. Throughout the year, in Belfast, there are 157.5 rainfall days, and 860.2mm (33.9") of precipitation is accumulated.

Sea temperature

With an average sea temperature of 8°C (46.4°F), March is the month with the coldest seawater in Belfast.
Note: Swimming in 8°C (46.4°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The average length of the day in March is 11.9h.

Sunshine

The average sunshine in Belfast is 3.3h.

UV index

In March, the average daily maximum UV index in Belfast is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 in March interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in March in Belfast?

In March, in Belfast, the average high-temperature is 9.5°C (49.1°F), and the average low-temperature is 2.9°C (37.2°F).

How much does it rain in Belfast in March?

In Belfast, United Kingdom, in March, during 14 rainfall days, 67mm (2.6") of precipitation is typically accumulated.

What month is the sea coldest in Belfast?

With an average sea temperature of 8°C (46.4°F), March is the month with the coldest seawater in Belfast.

What is the sea water temperature in March in Belfast?

In Belfast, United Kingdom, the average seawater temperature in March is 8°C (46.4°F). Swimming in 8°C (46.4°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in March in Belfast?

In Belfast, United Kingdom, the average length of the day in March is 11.9h.

How many hours of sunshine does Belfast have in March?

The average sunshine in March in Belfast is 3.3h.

How high is the UV index in March in Belfast?

In Belfast, United Kingdom, the average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in March - Belfast, United Kingdom
  • Average high temperature in March: 9.5°C

The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (7.1°C).

  • Average low temperature in March: 2.9°C

The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).

Average rainfall in March - Belfast, United Kingdom
  • Average rainfall in March: 67mm

The wettest month (with the highest rainfall) is October (89.6mm).
The driest month (with the lowest rainfall) is May (57.3mm).

Average rainfall days in March - Belfast, United Kingdom
  • Average rainfall days in March: 14 days

The month with the highest number of rainy days is January (14.8 days).
The month with the lowest number of rainy days is June (11.3 days).

Average sea temperature in March - Belfast, United Kingdom
  • Average sea temperature in March: 8°C

The best month for swimming (with the highest average sea temperature) is September (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8°C).

Average daylight in March / Average sunshine in March - Belfast, United Kingdom
  • Average daylight in March: 11.9h

The month with the longest days is June (Average daylight: 17.2h).
The month with shortest days is December (Average daylight: 7.4h).

  • Average sunshine in March: 3.3h

The month with most sunshine is May (Average sunshine: 6.4h).
The month with least sunshine is December (Average sunshine: 1.5h).

Average UV index in March - Belfast, United Kingdom
  • Average UV index in March: 2

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January and December (UV index 0).