Killarney weather in October
Temperature, rain and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Poor
Best time to visit: June – September
What is the weather like in Killarney in October?
In October, Killarney is cool: daytime highs average 14 °C, and nights cool down to about 9 °C. The sun is scarce, with only about 3 hours a day. It rains often – on about 16 days, adding up to 111 mm. All in all, October is not an ideal month for a holiday in Killarney.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 61 | 36 | 16 |
| Day | 17° | 14° | 11° |
| Night | 11° | 9° | 6° |
| Sun | 4 h | 3 h | 2 h |
| Rain days | 14 | 16 | 17 |
More details for October
- Daylight
- 10 h 46 min08:01 – 18:46
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 79 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Dublin
How the score comes together
- Temperatureweight 50 %64 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %12 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Killarney in October: quick answers
Is Killarney hot in October?
No. In October, Killarney is cool: daytime highs average 14 °C and nights drop to about 9 °C.
Does it rain much in Killarney in October?
It rains often – on about 16 days, adding up to 111 mm.
Killarney month by month
The whole year in KillarneyAll destinations: IrelandWhere to go in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences