Average annual temperature is 10.6 °C
Absolute maximum temperature: 23.3 °C
Absolute minimum temperature: -3.2 °C
Number of sunny days: 74 days
Number of rainy days: 290 days
Number of snow days: 1 day
Look at detailed online map of Old Port House
* Weather data for Old Port House 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) | 11.9 | 12.4 | 13.1 | 16.0 | 21.4 | 23.2 | 20.9 | 20.9 | 23.3 | 18.9 | 12.9 | 12.2 |
| Average daytime temperature (°C) | 8.2 | 9.4 | 9.3 | 11.5 | 16.3 | 19.2 | 17.3 | 17.8 | 17.5 | 13.6 | 10.2 | 9.3 |
| Average temperature (°C) | 6.0 | 7.4 | 6.9 | 8.5 | 12.3 | 15.6 | 14.4 | 14.8 | 14.3 | 11.0 | 7.9 | 7.4 |
| Average night temperature (°C) | 3.6 | 5.2 | 4.3 | 5.5 | 8.5 | 12.0 | 11.4 | 12.2 | 11.1 | 8.5 | 5.6 | 5.4 |
| Absolute minimum temperature (°C) | -3.2 | 0.1 | -0.5 | 1.2 | 4.5 | 8.2 | 8.5 | 9.0 | 5.2 | 1.9 | -0.7 | -2.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.4 | 10.0 | 11.9 | 13.9 | 15.7 | 16.6 | 16.1 | 14.6 | 12.7 | 10.7 | 8.9 | 7.9 |
| Daylight minimum duration (h) | 7.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 7.0 |
| Sunshine mean duration (h) | 3.6 | 3.6 | 4.6 | 6.9 | 10.6 | 10.5 | 9.4 | 8.4 | 7.1 | 4.4 | 5.1 | 2.9 |
| Precipitation (mm) | 150 | 32 | 237 | 74 | 52 | 88 | 162 | 140 | 184 | 221 | 103 | 173 |
| Sunny days | 7 | 10 | 3 | 3 | 12 | 8 | 3 | 3 | 8 | 3 | 9 | 5 |
| Rainy days | 23 | 18 | 28 | 27 | 19 | 22 | 28 | 28 | 22 | 28 | 21 | 26 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Old Port House during the most sunny months:
Months with the longest average daylight duration in Old Port House:
The largest precipitation sum in Old Port House is at