Cardiff
United Kingdom
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Cardiff, United Kingdom

The first month of the spring, March, is a fresh month in Cardiff, United Kingdom, with average temperature fluctuating between 11.1°C (52°F) and 4°C (39.2°F).

Temperature

In March, the average high-temperature is practically the same as in February - a cool 11.1°C (52°F). In Cardiff, the average low-temperature is 4°C (39.2°F).

Rainfall

In Cardiff, during 13 rainfall days, 89.8mm (3.5") of precipitation is typically accumulated. In Cardiff, during the entire year, the rain falls for 148.8 days and collects up to 1152.1mm (45.4") of precipitation.

Sea temperature

With an average sea temperature of 8.7°C (47.7°F), March is the month with the coldest seawater in Cardiff.
Note: Swimming in 8.7°C (47.7°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Cardiff, the average length of the day is 11.9h.

Sunshine

The average sunshine in Cardiff is 3.6h.

UV index

The average daily maximum UV index in Cardiff is 3. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in March in Cardiff?

In March, in Cardiff, United Kingdom, the average high-temperature is 11.1°C (52°F), and the average low-temperature is 4°C (39.2°F).

How much does it rain in Cardiff in March?

In Cardiff, United Kingdom, in March, it is raining for 13 days, with typically 89.8mm (3.5") of accumulated precipitation.

When is the sea coldest in Cardiff?

The month with the coldest seawater in Cardiff is March, with an average sea temperature of 8.7°C (47.7°F).

How cold is the water in March in Cardiff?

In Cardiff, the average seawater temperature in March is 8.7°C (47.7°F). Swimming in 8.7°C (47.7°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

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

The average length of the day in March in Cardiff, United Kingdom, is 11.9h.

How many hours of sunshine does Cardiff have in March?

The average sunshine in March in Cardiff, United Kingdom, is 3.6h.

What is the UV index intensity in March in Cardiff?

In March, the average daily maximum UV index in Cardiff, United Kingdom, is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in March - Cardiff, United Kingdom
  • Average high temperature in March: 11.1°C

The warmest month (with the highest average high temperature) is July (21.7°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in March: 4°C

The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).

Average rainfall in March - Cardiff, United Kingdom
  • Average rainfall in March: 89.8mm

The wettest month (with the highest rainfall) is October (133.5mm).
The driest month (with the lowest rainfall) is June (66.6mm).

Average rainfall days in March - Cardiff, United Kingdom
  • Average rainfall days in March: 13 days

The month with the highest number of rainy days is January (15.7 days).
The month with the lowest number of rainy days is June (10.1 days).

Average sea temperature in March - Cardiff, United Kingdom
  • Average sea temperature in March: 8.7°C

Best months for swimming (with the highest average sea temperature) are August and September (16.6°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).

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

The month with the longest days is June (Average daylight: 16.5h).
The month with shortest days is December (Average daylight: 7.9h).

  • Average sunshine in March: 3.6h

The month with most sunshine is July (Average sunshine: 6.4h).
The month with least sunshine is December (Average sunshine: 1.6h).

Average UV index in March - Cardiff, United Kingdom
  • Average UV index in March: 3

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 0).