Dalkey Weather in April

April in Dalkey typically sees daytime highs of 12°C (54°F) and nighttime lows of 6°C (43°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Dalkey in April

Typically, about 15 days will experience rainfall, with an average of 71 mm (2.8 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Dalkey in April

Temperatures in Dalkey in April top out at 12°C (54°F) and drop to 6°C (43°F) overnight. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Dalkey in April

With about 157 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Dalkey in April

April has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

Average water temperature in April

With water temperatures around 9°C (48°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Dalkey.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Dalkey's climate page.

Dalkey Temperature in April

Min Temperature 6°C (43°F)  

Max Temperature 12°C (54°F)  

Water Temperature 9°C (48°F) *  

Chance of Rain 48%  

Precipitation 71 mm (2.8 in)  

Rainy days 15 days  

Humidity 68% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 157 hours *  

Percentage Sunshine 40% *  

* Data from: Dublin, Ireland (19 KM, 12 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Dalkey typically stay consistent throughout April, with daily highs averaging around 12°C (54°F). Nights are cold, with lows typically ranging from 4°C (39°F) to 6°C (43°F).

Average temperatures in April

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in April

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Dalkey in April

Browse day-by-day weather records for Dalkey spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

‹ January February March April May June July August September October November December ›

Dalkey historical weather extremes in April

According to our 32 years of weather records for Dalkey, the following extremes were recorded between 1994 and 2026.

• Dalkey recorded its highest April temperature of 22°C (72°F) on April 30, 2025.
• Dalkey experienced its chilliest April day on April 1, 2013, reaching only 4°C (39°F).
• The coldest night in April in Dalkey was on April 6, 2013, with a minimum of -5°C (23°F).
• The wettest day in April Dalkey was on April 17, 2002 with 26 mm (1 in) of precipitation.

What to Wear in Dalkey in April

Pack for changing conditions in Dalkey in April. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. The water temperature sits at about 9°C (48°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Dalkey in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Dalkey's climate page.

More climate data for Dalkey

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Dalkey climate overview or explore weather in Ireland.