Kilkenny weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: June – September
What is the weather like in Kilkenny in September?
In September, Kilkenny is mild: daytime highs average 17 °C, and nights cool down to about 10 °C. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 11 rainy days and 64 mm in total. All in all, September is a good month for a holiday in Kilkenny.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 69 | 62 | 39 |
| Day | 19° | 17° | 14° |
| Night | 12° | 10° | 8° |
| Sun | 5 h | 4 h | 3 h |
| Rain days | 12 | 11 | 13 |
More details for September
- Daylight
- 12 h 46 min07:01 – 19:47
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 75 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+1Europe/Dublin
How the score comes together
- Temperatureweight 50 %86 %
- Sunshineweight 20 %15 %
- Few rainy daysweight 30 %53 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Kilkenny in September: quick answers
Is Kilkenny hot in September?
No. In September, Kilkenny is mild: daytime highs average 17 °C and nights drop to about 10 °C.
Does it rain much in Kilkenny in September?
Rain is frequent, with about 11 rainy days and 64 mm in total.
Kilkenny month by month
The whole year in KilkennyAll destinations: IrelandWhere to go in September
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