Cool
Average highs are around 18°C, so pack for cooler days.
August verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 4.6h per day, so this is not one of the brighter months. Rainfall averages 97mm, so some wet days are possible.
Monthly averages
Temp
18°C
Rain
97mm
Sun
4.6h
Sea
15°C
Weather score
30
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Showers
Rainfall averages 97mm, so some wet days are possible.
Limited sun
Sunshine averages 4.6h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare Killarney, Ireland with nearby places by weather score, rain, sun, temperature, and swim conditions.
August18°C average high
August is one of Killarney's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August97mm average rain
August sits on the drier side of Killarney's year, which helps with sightseeing and transfers.
Driest monthsApril to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August4.6 hours average sun
August is brighter than Killarney's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
August15°C average sea
August is one of Killarney's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
August30 weather score
August scores above Killarney's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.