Average annual temperature is 17.8 °C
Absolute maximum temperature: 41.0 °C
Absolute minimum temperature: 1.5 °C
Number of sunny days: 217 days
Number of rainy days: 148 days
Look at detailed online map of Seixal
* Weather data for Seixal 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) | 19.1 | 20.4 | 27.3 | 32.8 | 31.5 | 35.9 | 35.9 | 41.0 | 36.4 | 35.8 | 22.2 | 19.8 |
| Average daytime temperature (°C) | 14.7 | 16.1 | 19.2 | 25.1 | 25.3 | 28.8 | 30.0 | 32.2 | 27.6 | 25.7 | 19.1 | 15.8 |
| Average temperature (°C) | 11.2 | 10.8 | 14.3 | 18.4 | 19.6 | 22.6 | 22.8 | 24.3 | 21.4 | 20.2 | 15.4 | 11.6 |
| Average night temperature (°C) | 8.0 | 6.9 | 10.2 | 13.1 | 15.3 | 18.1 | 17.8 | 19.0 | 16.9 | 15.6 | 12.1 | 8.1 |
| Absolute minimum temperature (°C) | 2.4 | 2.1 | 1.5 | 10.0 | 13.2 | 15.3 | 15.8 | 17.1 | 13.6 | 11.8 | 5.0 | 2.3 |
| 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) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 7.5 | 8.9 | 9.0 | 11.4 | 12.4 | 12.7 | 13.2 | 12.1 | 10.3 | 7.5 | 7.3 | 6.6 |
| Precipitation (mm) | 35 | 30 | 38 | 28 | 25 | 38 | 0 | 1 | 34 | 131 | 75 | 34 |
| Sunny days | 18 | 15 | 16 | 21 | 17 | 15 | 26 | 26 | 15 | 12 | 18 | 18 |
| Rainy days | 13 | 13 | 15 | 9 | 14 | 15 | 5 | 5 | 15 | 19 | 12 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Seixal during the most sunny months:
The largest precipitation sum in Seixal is at