Average temperature in May is 12.8 °C
Average daytime temperature is 16.9 °C
Average night temperature is 8.6 °C
Absolute maximum temperature: 21.2 °C
Absolute minimum temperature: 5 °C
Number of sunny days: 15
Number of rainy days: 16
Number of snow days:
Precipitation sum: 34 mm
* Weather data for Portlaoise 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 | 15.7 | 15.9 | 15.1 | 16.5 | 16.8 | 16.9 | 16.6 | 18.2 | 15.6 | 13 | 14.3 | 18 | 19.7 | 14.5 | 13.5 | 15.5 | 18.6 | 16.3 | 16.4 | 17.3 | 16.3 | 16.1 | 17.2 | 17.5 | 19.6 | 18.4 | 21.2 | 16.2 | 19.1 | 20.6 | 18.2 |
| Apparent max temperature | 14.2 | 13.4 | 12.6 | 13.6 | 14.2 | 15.8 | 13.5 | 17.3 | 14.2 | 9.7 | 11.7 | 15.9 | 19 | 12 | 10.5 | 13 | 15.6 | 14.1 | 14.7 | 16.9 | 15.6 | 13.2 | 15.7 | 15.6 | 19.8 | 17.8 | 20 | 14.4 | 18.3 | 19.8 | 17.3 |
| Mean temperature | 12.4 | 11.9 | 12.1 | 12.2 | 12.9 | 13.1 | 12.6 | 14.3 | 11.9 | 11.1 | 11 | 12.5 | 13.7 | 11.2 | 9.6 | 11 | 12.7 | 12 | 12.7 | 14.1 | 13.9 | 12.8 | 12.4 | 13 | 14.4 | 14.2 | 15.5 | 12.9 | 13.2 | 14.6 | 14.1 |
| Apparent mean temperature | 7.9 | 5.5 | 7.3 | 6.3 | 6.9 | 9 | 7 | 9 | 7.6 | 6.9 | 5.6 | 4.9 | 4.7 | 4.5 | 2 | 2.5 | 4.3 | 4.2 | 6.7 | 11 | 11.9 | 6.4 | 5.5 | 6.1 | 7.4 | 8.5 | 8.5 | 6.7 | 4.5 | 6.4 | 8.1 |
| Minimum temperature | 9.9 | 6.9 | 9 | 9.5 | 9.9 | 10.4 | 8.8 | 10.4 | 8.9 | 9.3 | 8.1 | 7.2 | 6.6 | 7.5 | 5 | 5 | 6.4 | 6.5 | 8.5 | 11.3 | 12.1 | 9.3 | 8 | 8 | 9.2 | 10.1 | 9.2 | 9.4 | 7.1 | 8.3 | 10 |
| Apparent min temperature | 10.7 | 10.1 | 9.5 | 9.5 | 10.6 | 11.8 | 10.4 | 12.9 | 9.9 | 8.1 | 8.4 | 10.7 | 12.6 | 8.8 | 6.6 | 8.8 | 10.7 | 10.1 | 11 | 13.9 | 13.6 | 10.4 | 10.5 | 11.1 | 13.2 | 12.8 | 14.7 | 10.7 | 11.2 | 13.1 | 12.5 |
| 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 | 15.1 | 15.1 | 15.2 | 15.2 | 15.3 | 15.4 | 15.4 | 15.5 | 15.5 | 15.6 | 15.7 | 15.7 | 15.8 | 15.8 | 15.9 | 15.9 | 16 | 16 | 16.1 | 16.1 | 16.2 | 16.2 | 16.3 | 16.3 | 16.4 | 16.4 | 16.4 | 16.5 | 16.5 | 16.5 |
| Sunshine duration (h) | 7.1 | 10 | 3.6 | 4.6 | 11.1 | 8.8 | 7.2 | 10.5 | 11.9 | 5.9 | 11.9 | 14.3 | 13.5 | 5 | 13.4 | 14.3 | 12.2 | 7.9 | 1.5 | 0.1 | 2.4 | 13.9 | 11.7 | 14.5 | 12.9 | 12.3 | 14.6 | 10.8 | 15 | 15 | 15 |
| Precipitation (mm) | 0.6 | 0 | 0 | 1.4 | 2.6 | 0.8 | 4.9 | 7.2 | 1.5 | 1.8 | 4.5 | 0.1 | 0 | 1.6 | 0.5 | 0 | 0 | 0 | 1 | 1.6 | 3.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 |
| Precipitation hours | 6 | 0 | 0 | 6 | 12 | 8 | 6 | 12 | 8 | 11 | 10 | 1 | 0 | 7 | 5 | 0 | 0 | 0 | 6 | 12 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| Wind speed (m/s) | 14.2 | 15.6 | 20.7 | 21.2 | 19.7 | 12.4 | 21.7 | 18.2 | 15.9 | 22.6 | 19.5 | 13.4 | 12 | 19.5 | 16 | 12.4 | 14.5 | 12.2 | 12.7 | 6.7 | 11.9 | 17.7 | 14 | 14.1 | 13.4 | 13.5 | 14.8 | 15 | 17.7 | 17.3 | 18.3 |
In May 2023, the highest daytime temperature in Portlaoise was 21.2°C.
While the minimum temperature at night dropped to 5°C.
The average nighttime and daytime temperatures during May in Portlaoise are 8.6°C and 16.9°C respectively.
The precipitation sum in May is about 34 mm.