Average annual temperature is 14.3 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -2.7 °C
Number of sunny days: 201 days
Number of rainy days: 164 days
Look at detailed online map of Casal de São João
* Weather data for Casal de São João 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) | 13.7 | 17.7 | 22.5 | 27.7 | 28.6 | 33.1 | 32.1 | 38.7 | 31.0 | 31.5 | 19.6 | 16.6 |
| Average daytime temperature (°C) | 10.6 | 12.5 | 15.5 | 20.2 | 21.4 | 24.1 | 26.2 | 29.2 | 23.4 | 21.8 | 15.0 | 11.9 |
| Average temperature (°C) | 6.7 | 7.7 | 11.0 | 14.5 | 15.8 | 18.9 | 19.4 | 21.8 | 18.4 | 17.6 | 11.6 | 7.9 |
| Average night temperature (°C) | 3.0 | 3.6 | 6.9 | 8.8 | 10.6 | 14.3 | 13.9 | 15.8 | 14.1 | 13.7 | 8.5 | 4.4 |
| Absolute minimum temperature (°C) | -2.7 | -2.1 | -2.5 | 2.2 | 6.2 | 11.5 | 9.9 | 11.0 | 10.0 | 8.2 | 2.2 | 0.6 |
| 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 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 6.2 | 8.8 | 8.6 | 10.4 | 10.7 | 12.2 | 12.8 | 12.3 | 9.5 | 6.4 | 6.1 | 6.3 |
| Precipitation (mm) | 206 | 17 | 84 | 34 | 123 | 113 | 9 | 2 | 105 | 288 | 182 | 65 |
| Sunny days | 16 | 19 | 13 | 20 | 15 | 13 | 25 | 29 | 9 | 12 | 13 | 17 |
| Rainy days | 15 | 9 | 18 | 10 | 16 | 17 | 6 | 2 | 21 | 19 | 17 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Casal de São João during the most sunny months:
The largest precipitation sum in Casal de São João is at