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 October
In Killarney, October brings moderate daytime temperatures around 14°C (57°F), with nights cooling to 7°C (45°F). Expect quite a bit of rainfall this month.
Rainfall in Killarney in October
On average, there are about 22 days with rain during this month, averaging 114 mm (4.5 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Killarney in October
If you're visiting Killarney in October, expect highs of 14°C (57°F) and overnight lows around 7°C (45°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Killarney in October
The area experiences limited sunny days, amounting to roughly 82 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June typically offers the best weather for Killarney.
Killarney Temperature in October
Min Temperature
7°C (45°F)
Max Temperature
14°C (57°F)
Chance of Rain
73%
Precipitation
114 mm (4.5 in)
Rainy days
22 days
Humidity
78% *
Sunshine
82 hours *
Percentage Sunshine
27% *
* 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
50-year average (1976-2025)
Based on our historical records, temperatures in Killarney typically stay consistent throughout October, with daily highs averaging around 14°C (57°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather records for Killarney in October
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 October
Based on weather observations in Killarney between 1986 and 2025, these are the recorded extremes during October.
- Killarney recorded its highest October temperature of 22°C (72°F) on October 8, 2023.
- The lowest daytime temperature in October was 7°C (45°F), recorded on October 20, 2004.
- Nighttime temperatures dropped to -1°C (30°F) on October 28, 2018, marking the coldest October night on record.
- Peak precipitation in October occurred on October 4, 2016, when 52 mm (2 in) of precipitation was measured.
Best Places in Ireland in October
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in October →
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 October
The weather can be unpredictable in October, 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. With limited sunshine expected, sunglasses aren't a priority for packing.
What To Do in Killarney in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports9/10
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 October
Where to go in October - average daytime high across popular destinations.
Westport
14°C (57°F) Doolin15°C (59°F) Kilkenny
14°C (57°F) Cork
15°C (59°F) Kenmare14°C (57°F) Killarney14°C (57°F) Galway15°C (59°F) Dublin15°C (59°F) Bucket list
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An Irish adventure like no other in Killarney National Park
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