Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The initiation of April records an average high-temperature of a cool 10.8°C (51.4°F), displaying a near consistency with the previous month. Portmarnock's nights in April cool down to an average low-temperature of 5.8°C (42.4°F).Humidity
March through May, with an average relative humidity of 83%, are the least humid months in Portmarnock.Rainfall
In Portmarnock, Ireland, in April, during 13.3 rainfall days, 25mm (0.98") of precipitation is typically accumulated. In Portmarnock, during the entire year, the rain falls for 159.4 days and collects up to 362mm (14.25") of precipitation.Snowfall
In Portmarnock, snow does not fall in April through October.Sea temperature
In April, the average sea temperature is 9.2°C (48.6°F).Note: If planning to swim in 9.2°C (48.6°F) under 10°C (50°F), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 13°C (55.4°F) is not much warmer.
Daylight
In April, the average length of the day is 14h and 2min.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 Portmarnock, sunrise is at 5:50 am and sunset at 8:52 pm IST.
Sunshine
The months with the most sunshine are April through June, with an average of 7.5h of sunshine.UV index
In April, the average daily maximum UV index in Portmarnock, Ireland, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during April leads to these instructions:
Undertake protective steps - Preventing sun damage is advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What is the temperature in April in Portmarnock?
What are the least humid months in Portmarnock?
What is the average humidity in April in Portmarnock?
How much does it rain in Portmarnock in April?
When it does not snow in Portmarnock?
Does it snow in Portmarnock in April?
How cold is the water in April in Portmarnock?
What is the average length of the day in April in Portmarnock?
When are sunrise and sunset in April in Portmarnock?
What is the month with the most sunshine in Portmarnock?
How many hours of sunshine does Portmarnock have in April?
What is the UV index intensity in April in Portmarnock?
Average temperature in April
Portmarnock, Ireland
- Average high temperature in April: 10.8°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in April: 5.8°C
The months with the highest average low temperature are July and August (12.1°C).
The coldest months (with the lowest average low temperature) are February and March (3.9°C).
Average pressure in April
Portmarnock, Ireland
- Average pressure in April: 1014.7mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.2mbar).
Average wind speed in April
Portmarnock, Ireland
- Average wind speed in April: 17.8km/h
The windiest month (with the highest average wind speed) is January (24.2km/h).
The calmest month (with the lowest average wind speed) is June (15.2km/h).
Average humidity in April
Portmarnock, Ireland
- Average humidity in April: 83%
The months with the highest relative humidity are July and December (86%).
The months with the lowest relative humidity are March, April and May (83%).
Average rainfall in April
Portmarnock, Ireland
- Average rainfall in April: 25mm
The wettest month (with the highest rainfall) is November (51mm).
The driest month (with the least rainfall) is May (19mm).
Average rainfall days in April
Portmarnock, Ireland
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (10.7 days).
Average snowfall in April
Portmarnock, Ireland
- Average snowfall in April: 0mm
The month with the highest snowfall is December (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Portmarnock, Ireland
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Portmarnock, 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
Portmarnock, 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 3min
The months with the most sunshine are April, May and June (Average sunshine: 7h and 30min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 18min).
Average sunshine days in April
Portmarnock, Ireland
- Average sunshine days in April: 14.2 days
The months with the most sunshine days are January and December (16.8 days).
The month with the least sunshine days is July (11 days).
Average UV index in April
Portmarnock, 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
Portmarnock, Ireland
- Average cloud cover in April: 50
The months with the most cloud cover are January and February (Cloud cover 57).
The months with the least cloud cover are April and September (Cloud cover 50).
Average visibility in April
Portmarnock, Ireland
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, October, November and December (10km).
The months with the lowest visibility are April, May, June, July, August and September (9km).
Portmarnock, Ireland
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