Average annual temperature is 10.8 °C
Absolute maximum temperature: 24.8 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 80 days
Number of rainy days: 285 days
Look at detailed online map of Dundalk
* Weather data for Dundalk 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 | 13.5 | 15.9 | 16.7 | 20.6 | 23.9 | 21.6 | 22.5 | 24.8 | 20.9 | 13.7 | 12.7 |
| Average daytime temperature (°C) | 8.1 | 10.0 | 10.0 | 12.0 | 16.1 | 19.5 | 17.9 | 18.9 | 18.2 | 14.6 | 9.8 | 9.2 |
| Average temperature (°C) | 5.8 | 7.6 | 6.8 | 8.8 | 12.4 | 16.1 | 14.8 | 15.4 | 14.8 | 11.9 | 7.2 | 7.3 |
| Average night temperature (°C) | 3.5 | 5.1 | 3.9 | 5.6 | 8.5 | 12.3 | 11.7 | 12.1 | 11.3 | 9.2 | 4.4 | 5.2 |
| Absolute minimum temperature (°C) | -3.1 | -0.5 | -2.2 | -0.1 | 5.5 | 7.1 | 8.5 | 8.6 | 4.9 | 1.9 | -1.9 | -2.6 |
| 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) | 3.6 | 3.4 | 4.7 | 7.7 | 9.3 | 11.7 | 8.6 | 9.0 | 6.9 | 5.4 | 4.9 | 2.1 |
| Precipitation (mm) | 57 | 19 | 163 | 129 | 57 | 62 | 162 | 99 | 124 | 138 | 88 | 126 |
| Sunny days | 10 | 10 | 1 | 5 | 11 | 12 | 1 | 5 | 4 | 7 | 11 | 3 |
| Rainy days | 21 | 18 | 30 | 25 | 20 | 18 | 30 | 26 | 26 | 24 | 19 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Dundalk during the most sunny months:
Months with the longest average daylight duration in Dundalk:
The largest precipitation sum in Dundalk is at