Average annual temperature is 12.9 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: -5.9 °C
Number of sunny days: 209 days
Number of rainy days: 155 days
Number of snow days: 1 day
Look at detailed online map of Grandais
* Weather data for Grandais 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) | 11.6 | 15.2 | 21.3 | 24.8 | 25.8 | 31.8 | 31.3 | 38.0 | 28.3 | 28.7 | 16.9 | 13.9 |
| Average daytime temperature (°C) | 8.4 | 10.5 | 13.6 | 19.4 | 21.0 | 24.4 | 27.7 | 29.7 | 22.6 | 19.3 | 13.2 | 8.3 |
| Average temperature (°C) | 4.3 | 4.7 | 8.7 | 12.8 | 14.8 | 18.9 | 20.9 | 22.4 | 17.1 | 15.0 | 9.8 | 4.4 |
| Average night temperature (°C) | 0.7 | 0.1 | 4.1 | 6.3 | 8.7 | 13.6 | 13.9 | 15.1 | 12.3 | 11.2 | 6.7 | 1.1 |
| Absolute minimum temperature (°C) | -4.1 | -4.6 | -3.5 | 0.4 | 4.2 | 11.0 | 9.2 | 9.5 | 6.8 | 6.0 | 0.0 | -5.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.2 | 9.1 | 8.2 | 11.1 | 12.3 | 12.6 | 13.6 | 12.7 | 10.3 | 6.6 | 5.5 | 5.4 |
| Precipitation (mm) | 106 | 18 | 35 | 14 | 73 | 114 | 2 | 0 | 90 | 197 | 142 | 73 |
| Sunny days | 18 | 21 | 12 | 23 | 16 | 12 | 26 | 30 | 13 | 12 | 11 | 15 |
| Rainy days | 13 | 6 | 19 | 7 | 15 | 18 | 5 | 1 | 17 | 19 | 19 | 16 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grandais during the most sunny months:
The largest precipitation sum in Grandais is at