Average temperature in May is 12.4 °C
Average daytime temperature is 16.1 °C
Average night temperature is 8.5 °C
Absolute maximum temperature: 20.6 °C
Absolute minimum temperature: 5.5 °C
Number of sunny days: 11
Number of rainy days: 20
Number of snow days:
Precipitation sum: 57 mm
* Weather data for Dundalk Ireland is based on climate observations for 2023 year
| May (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 16.5 | 14.1 | 14.2 | 12.7 | 15.8 | 14.3 | 16.2 | 19.3 | 17.1 | 15.1 | 15.1 | 17.4 | 16 | 14.4 | 14 | 15.6 | 18.1 | 16.5 | 16.3 | 15.4 | 14.2 | 16 | 16.8 | 16.3 | 18.8 | 17.8 | 20.6 | 15.4 | 15.6 | 17.4 | 16.8 |
| Apparent max temperature | 14.5 | 12.4 | 11.7 | 8.3 | 14.8 | 12.8 | 16.1 | 18.4 | 16 | 12.4 | 14 | 16.9 | 16.3 | 11.1 | 11 | 12.7 | 16.1 | 14.7 | 15.3 | 15.3 | 13.7 | 12.7 | 14.8 | 14.5 | 17 | 17.1 | 19.6 | 13.1 | 15 | 17.6 | 16.8 |
| Mean temperature | 12.6 | 10.4 | 11.7 | 10.5 | 12.5 | 11.4 | 12.9 | 14.7 | 12.3 | 11.6 | 11.7 | 12.4 | 11.4 | 11.3 | 10 | 11.2 | 13 | 12.9 | 13.1 | 12.6 | 12.9 | 12.1 | 12.4 | 12.9 | 13.7 | 14 | 14.8 | 11.9 | 12.4 | 13.3 | 13.8 |
| Apparent mean temperature | 6.3 | 4.2 | 7.2 | 4.1 | 6 | 8.3 | 8.9 | 9.4 | 8 | 7.2 | 6.9 | 6.6 | 4.1 | 4.3 | 2.5 | 3.1 | 5.4 | 7.7 | 6.7 | 10.3 | 8.1 | 6.1 | 6.2 | 6.7 | 6.3 | 8 | 8.4 | 6 | 4.8 | 6.7 | 8.8 |
| Minimum temperature | 8.4 | 6.3 | 9.6 | 8.5 | 9.9 | 9.2 | 9.5 | 10.3 | 9.2 | 9.1 | 9 | 8.7 | 5.7 | 7.3 | 5.5 | 5.8 | 7.1 | 9.6 | 8.3 | 10.6 | 10.5 | 8.5 | 8.2 | 8.3 | 8.2 | 9.5 | 9 | 8.7 | 7.4 | 8.4 | 10.4 |
| Apparent min temperature | 10.7 | 8.4 | 9.2 | 6.1 | 10.9 | 10.2 | 11.8 | 13.6 | 10.7 | 9.3 | 9.9 | 11.3 | 10.4 | 8.9 | 7 | 8.7 | 11.4 | 11.1 | 11.8 | 12.3 | 12.2 | 9.2 | 10.3 | 11.1 | 12.3 | 12.9 | 14.1 | 9.2 | 10.9 | 12.5 | 12.8 |
| May | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 15.1 | 15.2 | 15.2 | 15.3 | 15.4 | 15.4 | 15.5 | 15.6 | 15.6 | 15.7 | 15.7 | 15.8 | 15.9 | 15.9 | 16 | 16 | 16.1 | 16.1 | 16.2 | 16.2 | 16.3 | 16.3 | 16.4 | 16.4 | 16.5 | 16.5 | 16.6 | 16.6 | 16.7 | 16.7 | 16.7 |
| Sunshine duration (h) | 9.4 | 9.8 | 4.2 | 2.2 | 9.8 | 7 | 8.6 | 9 | 11.8 | 5.5 | 10.7 | 14.5 | 13.5 | 4.3 | 13.9 | 12.8 | 12.6 | 2.9 | 1.5 | 0 | 0 | 13.7 | 10.9 | 7.7 | 11.5 | 9.2 | 13 | 14.4 | 15 | 15.1 | 15.1 |
| Precipitation (mm) | 0.7 | 0 | 0 | 2.2 | 5.2 | 4.9 | 7.6 | 6.8 | 4.9 | 6.7 | 8.9 | 0.6 | 0 | 2.1 | 0.4 | 0.5 | 0.1 | 0 | 0.8 | 0.7 | 3.5 | 0 | 0 | 0.1 | 0.3 | 0 | 0.3 | 0 | 0 | 0 | 0 |
| Precipitation hours | 6 | 0 | 0 | 6 | 16 | 7 | 7 | 11 | 5 | 15 | 12 | 2 | 0 | 8 | 4 | 5 | 1 | 0 | 6 | 7 | 13 | 0 | 0 | 1 | 2 | 0 | 3 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 18.7 | 14.6 | 21 | 30.7 | 23.9 | 13.1 | 17.6 | 16.3 | 13.1 | 18.8 | 14.7 | 12.2 | 12.5 | 19.2 | 16.1 | 16.6 | 13.6 | 14.4 | 12.2 | 7 | 13 | 18.4 | 15.6 | 16.6 | 15.3 | 14.8 | 15.3 | 15.6 | 13.1 | 11.8 | 13 |
In May 2023, the highest daytime temperature in Dundalk was 20.6°C.
While the minimum temperature at night dropped to 5.5°C.
The average nighttime and daytime temperatures during May in Dundalk are 8.5°C and 16.1°C respectively.
The precipitation sum in May is about 57 mm.