Average annual temperature is 19.5 °C
Absolute maximum temperature: 43.6 °C
Absolute minimum temperature: 0.7 °C
Number of sunny days: 267 days
Number of rainy days: 98 days
Look at detailed online map of Mértola
* Weather data for Mértola Portugal is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 20.7 | 21.8 | 29.4 | 36.2 | 34.3 | 43.6 | 41.1 | 43.6 | 37.3 | 36.1 | 24.5 | 21.7 |
| Average daytime temperature (°C) | 15.8 | 17.7 | 22.8 | 28.7 | 28.3 | 33.4 | 36.2 | 37.5 | 29.4 | 27.5 | 20.9 | 17.0 |
| Average temperature (°C) | 10.6 | 11.5 | 15.8 | 20.5 | 21.4 | 25.8 | 27.4 | 28.8 | 22.8 | 21.4 | 15.4 | 11.5 |
| Average night temperature (°C) | 6.5 | 6.4 | 9.9 | 13.0 | 15.1 | 19.1 | 19.2 | 20.5 | 17.4 | 16.5 | 11.4 | 7.4 |
| Absolute minimum temperature (°C) | 0.7 | 1.5 | 1.8 | 9.2 | 13.0 | 15.4 | 16.4 | 16.8 | 13.4 | 9.7 | 5.8 | 2.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.9 | 8.5 | 8.9 | 11.8 | 11.8 | 12.2 | 13.1 | 12.5 | 9.8 | 8.2 | 7.6 | 6.6 |
| Precipitation (mm) | 24 | 9 | 20 | 3 | 34 | 21 | 0 | 0 | 62 | 105 | 28 | 14 |
| Sunny days | 21 | 19 | 24 | 27 | 20 | 22 | 30 | 31 | 18 | 15 | 20 | 20 |
| Rainy days | 10 | 9 | 7 | 3 | 11 | 8 | 1 | 0 | 12 | 16 | 10 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Mértola during the most sunny months:
The largest precipitation sum in Mértola is at