Killarney weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: June – September
What is the weather like in Killarney in August?
In August, Killarney is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. Expect around 5 hours of sunshine a day. It rains often – on about 16 days, adding up to 96 mm. All in all, August is a good month for a holiday in Killarney.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 62 | 61 | 61 |
| Day | 18° | 18° | 17° |
| Night | 13° | 13° | 11° |
| Sun | 5 h | 5 h | 4 h |
| Rain days | 15 | 16 | 14 |
More details for August
- Daylight
- 14 h 45 min06:21 – 21:05
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 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 %100 %
- Sunshineweight 20 %28 %
- Few rainy daysweight 30 %17 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in August
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Killarney in August: quick answers
Is Killarney hot in August?
No. In August, Killarney is mild: daytime highs average 18 °C and nights drop to about 13 °C.
Does it rain much in Killarney in August?
It rains often – on about 16 days, adding up to 96 mm.
Killarney month by month
The whole year in KillarneyAll destinations: IrelandWhere to go in August
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