Average temperature in May is 21.4 °C
Average daytime temperature is 28.3 °C
Average night temperature is 15.1 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: 13 °C
Number of sunny days: 20
Number of rainy days: 11
Number of snow days:
Precipitation sum: 34 mm
* Weather data for Mértola Portugal 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 | 33.3 | 34.3 | 30.7 | 28.4 | 29.6 | 26.4 | 30.7 | 34.3 | 30.1 | 31.7 | 30.8 | 28.9 | 27 | 30.2 | 30.1 | 30.7 | 24.7 | 29.8 | 28.5 | 27.5 | 22.5 | 25.4 | 24.3 | 25.3 | 27.9 | 25.3 | 24.2 | 26 | 25.5 | 26.1 | 28.1 |
| Apparent max temperature | 33.7 | 33.3 | 29.6 | 27.9 | 28.5 | 25.6 | 29.8 | 33.1 | 29.1 | 28.6 | 27.9 | 26.3 | 23.7 | 27.7 | 28.6 | 29.7 | 24 | 27.5 | 27.1 | 25.4 | 21.6 | 24.1 | 26.2 | 26.3 | 29.3 | 26.1 | 26.3 | 25.4 | 25.3 | 26.6 | 28.3 |
| Mean temperature | 24.8 | 26.2 | 23.8 | 21.4 | 21.3 | 20.1 | 22.5 | 24.8 | 23.3 | 22.9 | 22.3 | 21.9 | 21.1 | 22 | 22.4 | 23 | 21.1 | 21.2 | 20.9 | 19.9 | 17.4 | 18.1 | 18.5 | 19.7 | 21.5 | 20.5 | 19.1 | 19.9 | 19.3 | 19.9 | 21.2 |
| Apparent mean temperature | 15.8 | 17.5 | 17.7 | 16.5 | 13.4 | 13 | 14.7 | 13.5 | 15.2 | 12.6 | 11.6 | 12.3 | 10.7 | 11.8 | 13.1 | 14 | 15 | 14.2 | 12.5 | 12.7 | 13.9 | 13.8 | 15.6 | 14.8 | 16 | 16.2 | 16.2 | 15.4 | 13.4 | 13.9 | 15.2 |
| Minimum temperature | 16.5 | 18.1 | 18.7 | 15.8 | 14.3 | 13.7 | 14.8 | 15.5 | 16.4 | 15.2 | 13.8 | 15.1 | 14.6 | 13.5 | 14.7 | 14.9 | 18.1 | 14.7 | 13 | 13.5 | 14.7 | 13.8 | 15.5 | 14.1 | 15 | 16 | 15.1 | 15.4 | 13.6 | 13.8 | 14.8 |
| Apparent min temperature | 23.8 | 24.7 | 21.8 | 20.7 | 19.8 | 19 | 21.5 | 23 | 21.7 | 19.6 | 19.3 | 18.3 | 17.2 | 19.2 | 20.4 | 21.4 | 19.1 | 20 | 19.7 | 18.8 | 16.6 | 18 | 19.3 | 20.5 | 22.2 | 20.7 | 19.7 | 19.2 | 18.4 | 19.5 | 20.9 |
| 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) | 13.7 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 14 | 14 | 14 | 14.1 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.2 | 14.3 | 14.3 | 14.3 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.5 | 14.5 | 14.5 | 14.5 | 14.6 | 14.6 |
| Sunshine duration (h) | 12.9 | 11.2 | 11.4 | 11.9 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12.3 | 4.2 | 13 | 12.3 | 9.3 | 8.3 | 7.7 | 8.2 | 13 | 13 | 13 | 10.8 | 12.2 | 13 | 13 | 12.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 3.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.7 | 4.4 | 6.5 | 9.4 | 0.6 | 0 | 5.3 | 3.5 | 0.1 | 0.5 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 10 | 7 | 16 | 5 | 0 | 4 | 10 | 1 | 4 | 0 | 0 |
| Wind speed (m/s) | 21.3 | 16.6 | 26.4 | 20.9 | 22.3 | 22.1 | 16.2 | 19.6 | 23 | 20.4 | 19.3 | 26.8 | 17.4 | 23.9 | 21.1 | 17.2 | 16.1 | 23.2 | 21.3 | 17.1 | 17.7 | 10.5 | 10.6 | 9.4 | 18 | 21.6 | 13.4 | 21.1 | 18.4 | 16.4 | 19.2 |
In May 2023, the highest daytime temperature in Mértola was 34.3°C.
While the minimum temperature at night dropped to 13°C.
The average nighttime and daytime temperatures during May in Mértola are 15.1°C and 28.3°C respectively.
The precipitation sum in May is about 34 mm.