An Irish adventure like no other in Killarney National Park
Head down to the South West part of the country, County Kerry, to the small town of Killarney. If you want to experience what Ireland is really all about
Killarney Weather in April
With daytime temperatures of 13°C (55°F) and nighttime lows of 5°C (41°F), April in Killarney brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 101 mm (4 in) falls on average.
Rainfall in Killarney in April
You can expect rain on around 16 days based on historical patterns, with 101 mm (4 in) average for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Killarney in April
April in Killarney brings moderate temperatures, with highs of 13°C (55°F) and nights around 5°C (41°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 5°C (41°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Killarney in April
You can expect a moderate amount of sunlight, with approximately 157 hours. This means a pleasant mix of sun and overcast.April in Killarney has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Killarney Temperature in April
Min Temperature
5°C (41°F)
Max Temperature
13°C (55°F)
Chance of Rain
54%
Precipitation
101 mm (4 in)
Rainy days
16 days
Humidity
72% *
Sunshine
157 hours *
Percentage Sunshine
38% *
* Data from: Valentia, Ireland (52 KM, 32 Miles).
Killarney Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Killarney - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Killarney typically stay consistent throughout April, with daily highs averaging around 13°C (55°F). Nights are cold, with lows typically ranging from 5°C (41°F) to 7°C (45°F).
Average temperatures in April
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
Historical weather records for Killarney in April
Browse day-by-day weather records for Killarney spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Killarney historical weather extremes in April
Based on 32 years of weather observations in Killarney between 1994 and 2026, these are the recorded extremes.
- On April 30, 2025, temperatures climbed to 24°C (75°F), marking the warmest April day on record.
- The lowest daytime temperature in April was 6°C (43°F), recorded on April 1, 2013.
- The coldest night in April in Killarney was on April 5, 2019, with a minimum of -3°C (27°F).
- Peak precipitation in April occurred on April 13, 2003, when 38 mm (1.5 in) of precipitation was measured.
Best Places in Ireland in April
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in April →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Killarney in April
The weather can be unpredictable in April, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Killarney in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming5/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports5/10
Killarney 3-Day Forecast
More climate data for Killarney
Temperature Rainfall Sunshine Humidity
See the full Killarney climate overview or explore weather in Ireland.
Popular in April
Where to go in April - average daytime high across popular destinations.
Kilkenny
13°C (55°F) Galway
14°C (57°F) Kenmare13°C (55°F) Killarney13°C (55°F) Doolin12°C (54°F) Westport13°C (55°F) Cork
13°C (55°F) Dublin13°C (55°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
An Irish adventure like no other in Killarney National Park
Go to Dingle in Ireland
Dolphins, Whales and breathtaking views. The colorful fishing village Dingle in Ireland has it all and this town is a must for your bucket list.
Horseback riding in Ireland
Ireland is the most ideal place in the world for horseback riding. Combine this with the most hospitable people you will ever encounter and you have an unforgettable dream trip to add to your bucket list.
The 10 most charming villages in France
Discover France's top 10 beautiful villages. From Normandy to the Côte d'Azur, experience quaint squares and cobbled streets. Which one will you visit this summer?