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
In April, Greystones experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 8.8°C (47.8°F) in March to a cool 10.3°C (50.5°F). Nighttime temperatures hover around an average low of 6.3°C (43.3°F) in April, a slight descent from daytime highs.Humidity
In April, the average relative humidity in Greystones is 83%.Rainfall
In April, in Greystones, the rain falls for 15.5 days. Throughout April, 34mm (1.34") of precipitation is accumulated. Throughout the year, there are 200.5 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
In Greystones, Ireland, snow does not fall in April through October.Sea temperature
In April, the average sea temperature in Greystones is 9.2°C (48.6°F).Note: Being in 9.2°C (48.6°F) waters at 13°C (55.4°F) is discomforting, but anything below 10°C (50°F) can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
In April, the average length of the day in Greystones is 14h and 1min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:59 pm. On the last day of April, sunrise is at 5:51 am and sunset at 8:51 pm IST.
Sunshine
In April, the average sunshine in Greystones is 7.7h.UV index
In Greystones, Ireland, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 during April leads to these advisories:
Take necessary precautions - Protection from skin and eye injury is mandatory. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the temperature in April in Greystones?
What is the average humidity in April in Greystones?
How many days does it rain in April in Greystones?
When it does not snow in Greystones?
Does it snow in Greystones in April?
How cold is the water in April in Greystones?
What is the average length of the day in April in Greystones?
When are sunrise and sunset in April in Greystones?
How long on average sun shines in April in Greystones?
How high is the UV index in April in Greystones?
Average temperature in April
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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
Greystones, 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).
Greystones, Ireland
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