Average annual temperature is 10.8 °C
Absolute maximum temperature: 25.9 °C
Absolute minimum temperature: -2.6 °C
Number of sunny days: 83 days
Number of rainy days: 282 days
Look at detailed online map of Killenny
* Weather data for Killenny Ireland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.0 | 14.3 | 15.9 | 17.7 | 20.4 | 24.8 | 22.2 | 23.8 | 25.9 | 22.2 | 13.9 | 12.8 |
| Average daytime temperature (°C) | 8.1 | 10.1 | 10.1 | 12.6 | 16.4 | 19.9 | 18.1 | 19.1 | 18.5 | 14.8 | 9.9 | 9.2 |
| Average temperature (°C) | 5.9 | 7.7 | 6.9 | 9.0 | 12.6 | 16.1 | 15.0 | 15.6 | 14.9 | 11.8 | 7.2 | 7.4 |
| Average night temperature (°C) | 3.8 | 5.1 | 3.9 | 5.5 | 8.6 | 12.3 | 11.8 | 12.3 | 11.5 | 9.0 | 4.6 | 5.2 |
| Absolute minimum temperature (°C) | -2.6 | -1.5 | -2.6 | 0.3 | 5.6 | 7.2 | 9.0 | 9.5 | 4.6 | 2.7 | -1.3 | -1.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 12.0 | 15.0 | 16.0 | 17.0 | 17.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 8.1 | 9.8 | 11.9 | 14.1 | 16.0 | 17.0 | 16.5 | 14.8 | 12.7 | 10.5 | 8.6 | 7.5 |
| Daylight minimum duration (h) | 7.0 | 8.0 | 10.0 | 13.0 | 15.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 7.0 |
| Sunshine mean duration (h) | 3.5 | 3.2 | 4.7 | 7.5 | 9.3 | 11.6 | 8.7 | 8.8 | 6.8 | 5.4 | 5.0 | 2.2 |
| Precipitation (mm) | 57 | 16 | 134 | 113 | 55 | 72 | 162 | 114 | 120 | 129 | 78 | 114 |
| Sunny days | 10 | 10 | 1 | 4 | 12 | 13 | 1 | 3 | 7 | 7 | 10 | 5 |
| Rainy days | 21 | 18 | 30 | 26 | 19 | 17 | 30 | 28 | 23 | 24 | 20 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Killenny during the most sunny months:
Months with the longest average daylight duration in Killenny:
The largest precipitation sum in Killenny is at