Average annual temperature is 16.4 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: -1.1 °C
Number of sunny days: 193 days
Number of rainy days: 172 days
Look at detailed online map of Casais Velhos
* Weather data for Casais Velhos 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) | 16.6 | 21.9 | 26.3 | 30.0 | 32.9 | 33.8 | 32.7 | 40.1 | 35.0 | 34.6 | 21.5 | 19.2 |
| Average daytime temperature (°C) | 14.1 | 16.6 | 18.9 | 23.5 | 24.5 | 26.8 | 27.5 | 30.0 | 26.0 | 24.7 | 18.2 | 14.9 |
| Average temperature (°C) | 9.6 | 10.3 | 13.3 | 16.4 | 18.4 | 20.8 | 21.1 | 22.7 | 19.9 | 19.2 | 14.4 | 10.5 |
| Average night temperature (°C) | 5.8 | 5.6 | 8.5 | 10.1 | 12.9 | 15.7 | 15.8 | 16.9 | 15.3 | 14.8 | 11.3 | 6.9 |
| Absolute minimum temperature (°C) | -1.1 | -0.4 | -0.6 | 6.0 | 8.8 | 11.3 | 12.8 | 13.3 | 10.0 | 10.2 | 4.5 | 1.2 |
| 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 | 12.0 | 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) | 6.6 | 8.9 | 8.9 | 10.3 | 11.2 | 12.1 | 12.6 | 11.8 | 10.1 | 7.1 | 6.2 | 6.0 |
| Precipitation (mm) | 166 | 16 | 89 | 27 | 60 | 69 | 3 | 2 | 91 | 253 | 155 | 78 |
| Sunny days | 15 | 20 | 12 | 17 | 15 | 16 | 23 | 28 | 12 | 12 | 10 | 13 |
| Rainy days | 16 | 8 | 19 | 13 | 16 | 14 | 8 | 3 | 18 | 19 | 20 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Casais Velhos during the most sunny months:
The largest precipitation sum in Casais Velhos is at