Average annual temperature is 15.8 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: -0.5 °C
Number of sunny days: 198 days
Number of rainy days: 167 days
Look at detailed online map of Sijãis
* Weather data for Sijãis 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) | 16.2 | 20.6 | 21.3 | 26.7 | 28.1 | 29.1 | 29.4 | 32.7 | 32.4 | 32.4 | 19.6 | 17.6 |
| Average daytime temperature (°C) | 13.6 | 15.7 | 16.3 | 19.7 | 22.0 | 23.8 | 23.9 | 25.4 | 23.6 | 22.6 | 17.1 | 14.3 |
| Average temperature (°C) | 9.9 | 10.1 | 12.6 | 15.0 | 17.7 | 19.8 | 19.8 | 21.0 | 19.3 | 18.7 | 14.3 | 10.6 |
| Average night temperature (°C) | 6.7 | 6.2 | 9.3 | 10.4 | 13.5 | 16.0 | 15.7 | 17.0 | 15.8 | 15.4 | 12.0 | 7.3 |
| Absolute minimum temperature (°C) | 1.3 | 0.7 | 1.1 | 5.7 | 9.7 | 13.5 | 13.1 | 13.8 | 10.7 | 10.9 | 4.9 | -0.5 |
| 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 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| 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) | 6.3 | 9.2 | 7.5 | 10.2 | 11.5 | 12.0 | 12.7 | 11.2 | 10.0 | 6.8 | 5.2 | 5.6 |
| Precipitation (mm) | 221 | 6 | 155 | 45 | 75 | 70 | 19 | 14 | 174 | 405 | 266 | 207 |
| Sunny days | 15 | 22 | 11 | 18 | 18 | 15 | 23 | 26 | 14 | 12 | 11 | 13 |
| Rainy days | 16 | 6 | 20 | 12 | 13 | 15 | 8 | 5 | 16 | 19 | 19 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Sijãis during the most sunny months:
The largest precipitation sum in Sijãis is at