Average annual temperature is 10.8 °C
Absolute maximum temperature: 26.2 °C
Absolute minimum temperature: -2.8 °C
Number of sunny days: 60 days
Number of rainy days: 305 days
Look at detailed online map of Oldcastle
* Weather data for Oldcastle 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) | 12.3 | 13.5 | 14.0 | 17.4 | 22.2 | 26.2 | 21.7 | 22.3 | 25.3 | 19.8 | 12.9 | 12.3 |
| Average daytime temperature (°C) | 8.0 | 9.9 | 9.5 | 12.5 | 16.1 | 20.9 | 16.9 | 17.8 | 17.8 | 13.7 | 10.0 | 8.9 |
| Average temperature (°C) | 5.9 | 7.8 | 6.8 | 9.3 | 12.5 | 16.8 | 14.4 | 15.1 | 14.6 | 11.3 | 7.8 | 7.3 |
| Average night temperature (°C) | 3.7 | 5.1 | 4.1 | 6.2 | 9.0 | 12.8 | 11.7 | 12.6 | 11.6 | 9.0 | 5.3 | 5.5 |
| Absolute minimum temperature (°C) | -2.8 | -1.1 | -1.5 | 1.1 | 6.0 | 9.6 | 8.7 | 9.8 | 6.3 | 2.6 | -1.4 | -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) | 2.9 | 2.9 | 4.5 | 6.8 | 8.7 | 11.1 | 8.3 | 8.5 | 6.6 | 4.4 | 4.0 | 2.1 |
| Precipitation (mm) | 101 | 57 | 145 | 98 | 42 | 123 | 168 | 136 | 130 | 141 | 114 | 175 |
| Sunny days | 5 | 7 | 3 | 4 | 13 | 9 | 0 | 1 | 5 | 6 | 5 | 2 |
| Rainy days | 26 | 21 | 28 | 26 | 18 | 21 | 31 | 30 | 25 | 25 | 25 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Oldcastle during the most sunny months:
Months with the longest average daylight duration in Oldcastle:
The largest precipitation sum in Oldcastle is at