April weather forecast
Dún Laoghaire, Ireland

April

Weather in April

April in Dún Laoghaire, Ireland, is a cool spring month, with an average temperature varying between 10.3°C (50.5°F) and 6.3°C (43.3°F).

Temperature

As Dún Laoghaire steps into April, the average high-temperature holds at a fresh 10.3°C (50.5°F), hinting at a minor fluctuation from the prior month. Throughout April, Dún Laoghaire reports a steady low-temperature average of 6.3°C (43.3°F), slightly lower than its daytime counterpart.

Humidity

The average relative humidity in April in Dún Laoghaire, Ireland, is 83%.

Rainfall

In Dún Laoghaire, Ireland, in April, it is raining for 15.5 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, in Dún Laoghaire, there are 200.5 rainfall days, and 530mm (20.87") of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Sea temperature

In April, the average sea temperature in Dún Laoghaire is 9.2°C (48.6°F).
Note: Diving into 9.2°C (48.6°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

In Dún Laoghaire, the average length of the day in April is 14h and 1min.
On the first day of the month, sunrise is at 6:56 am and sunset at 8:00 pm. On the last day of April, in Dún Laoghaire, sunrise is at 5:51 am and sunset at 8:52 pm IST.

Sunshine

The average sunshine in April in Dún Laoghaire is 7.7h.

UV index

In Dún Laoghaire, Ireland, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 3 in April interprets into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

What is the average April temperature in Dún Laoghaire?
April temperatures vary between a high-temperature of 10.3°C (50.5°F) and a low-temperature of 6.3°C (43.3°F).
What is the average humidity in April in Dún Laoghaire?
In Dún Laoghaire, Ireland, the average relative humidity in April is 83%.
How many days does it rain in April in Dún Laoghaire?
In Dún Laoghaire, Ireland, during April, the rain falls for 15.5 days and regularly aggregates up to 34mm (1.34") of precipitation.
When it does not snow in Dún Laoghaire?
April through October are months without snowfall in Dún Laoghaire, Ireland.
Does it snow in Dún Laoghaire in April?
In April, in Dún Laoghaire, Ireland, it doesn't snow. March is the latest month when it typically snows.
What is the sea water temperature in April in Dún Laoghaire?
In Dún Laoghaire, the average seawater temperature in April is 9.2°C (48.6°F). At temperatures below 10°C (50°F), 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 13°C (55.4°F) is not comfortable.
How many hours of daylight does Dún Laoghaire have in April?
In April, the average day length in Dún Laoghaire is 14h and 1min.
When is the sunrise / sunset in April in Dún Laoghaire?
On the first day of April in Dún Laoghaire, sunrise is at 6:56 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:52 pm IST.
How long on average sun shines in April in Dún Laoghaire?
In April, the average sunshine duration is 7.7h.
What is the UV index intensity in April in Dún Laoghaire?
In Dún Laoghaire, Ireland, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in April
Dún Laoghaire, Ireland
  • Average high temperature in April: 10.3°C

The warmest months (with the highest average high temperature) are July and August (16.9°C).
The months with the lowest average high temperature are January and February (7.8°C).

  • Average low temperature in April: 6.3°C

The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).

Average pressure in April
Dún Laoghaire, Ireland
  • Average pressure in April: 1014.8mbar

The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).

Average wind speed in April
Dún Laoghaire, Ireland
  • Average wind speed in April: 18.6km/h

The windiest month (with the highest average wind speed) is December (25.9km/h).
The calmest month (with the lowest average wind speed) is July (15.9km/h).

Average humidity in April
Dún Laoghaire, Ireland
  • Average humidity in April: 83%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (82%).

Average rainfall in April
Dún Laoghaire, Ireland
  • Average rainfall in April: 34mm

The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is May (27mm).

Average rainfall days in April
Dún Laoghaire, Ireland
  • Average rainfall days in April: 15.5 days

The month with the highest number of rainy days is July (20.4 days).
The months with the least rainy days are March and September (14.9 days).

Average snowfall in April
Dún Laoghaire, Ireland
  • Average snowfall in April: 0mm

The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in April
Dún Laoghaire, Ireland
  • Average snowfall days in April: 0 days

The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in April
Dún Laoghaire, Ireland
  • Average sea temperature in April: 9.2°C

The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).

Average daylight in April /
Average sunshine in April
Dún Laoghaire, Ireland
  • Average daylight in April: 14h and 0min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 4h and 18min).

Average sunshine days in April
Dún Laoghaire, Ireland
  • Average sunshine days in April: 11.7 days

The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is July (7.2 days).

Average UV index in April
Dún Laoghaire, Ireland
  • Average UV index in April: 3

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in April
Dún Laoghaire, Ireland
  • Average cloud cover in April: 49

The months with the most cloud cover are February and November (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 48).

Average visibility in April
Dún Laoghaire, Ireland
  • Average visibility in April: 9km

The months with the highest visibility are January, March, October and November (10km).
The months with the lowest visibility are February, April, May, June, July, August, September and December (9km).

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