Average annual temperature is 14.7 °C
Absolute maximum temperature: 40.2 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 221 days
Number of rainy days: 144 days
Look at detailed online map of Custoias
* Weather data for Custoias 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) | 14.0 | 15.9 | 23.9 | 29.5 | 30.1 | 34.2 | 35.1 | 40.2 | 31.4 | 32.8 | 20.0 | 17.1 |
| Average daytime temperature (°C) | 9.6 | 11.5 | 15.9 | 22.0 | 23.1 | 26.1 | 29.8 | 31.8 | 24.7 | 22.0 | 14.8 | 9.3 |
| Average temperature (°C) | 6.0 | 6.0 | 10.8 | 15.2 | 16.8 | 20.5 | 22.6 | 24.1 | 19.0 | 17.4 | 11.3 | 6.2 |
| Average night temperature (°C) | 2.3 | 1.1 | 6.1 | 8.9 | 10.9 | 15.1 | 15.7 | 16.9 | 14.1 | 13.0 | 7.8 | 3.0 |
| Absolute minimum temperature (°C) | -3.1 | -2.6 | -2.0 | 3.4 | 7.3 | 12.2 | 11.8 | 12.1 | 9.2 | 6.4 | 2.3 | -2.7 |
| 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 | 9.3 |
| 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 | 8.7 | 9.1 | 10.9 | 11.9 | 12.7 | 13.4 | 12.5 | 10.1 | 6.9 | 5.7 | 4.7 |
| Precipitation (mm) | 106 | 16 | 46 | 12 | 60 | 73 | 1 | 0 | 84 | 171 | 93 | 65 |
| Sunny days | 17 | 20 | 15 | 23 | 17 | 13 | 26 | 31 | 17 | 12 | 12 | 18 |
| Rainy days | 14 | 8 | 16 | 7 | 14 | 17 | 5 | 0 | 13 | 19 | 18 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Custoias during the most sunny months:
The largest precipitation sum in Custoias is at