Average annual temperature is 12.2 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 213 days
Number of rainy days: 152 days
Look at detailed online map of Castainço
* Weather data for Castainço 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) | 11.0 | 13.1 | 20.9 | 26.0 | 26.5 | 31.0 | 31.7 | 37.8 | 29.3 | 30.0 | 17.3 | 14.1 |
| Average daytime temperature (°C) | 7.1 | 8.8 | 13.1 | 18.8 | 19.9 | 23.1 | 26.5 | 28.8 | 21.9 | 19.4 | 12.4 | 7.4 |
| Average temperature (°C) | 3.7 | 3.6 | 8.3 | 12.5 | 13.9 | 17.7 | 19.5 | 21.3 | 16.6 | 15.2 | 9.0 | 4.3 |
| Average night temperature (°C) | 0.2 | -0.9 | 3.7 | 6.1 | 8.2 | 12.8 | 12.9 | 14.4 | 11.9 | 11.0 | 6.1 | 1.2 |
| Absolute minimum temperature (°C) | -5.2 | -5.7 | -5.3 | 0.3 | 4.7 | 9.5 | 8.6 | 10.0 | 7.7 | 4.9 | 1.1 | -3.8 |
| 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 | 9.0 | 10.8 | 11.9 | 12.8 | 13.4 | 12.5 | 10.0 | 6.7 | 5.8 | 5.2 |
| Precipitation (mm) | 123 | 14 | 37 | 15 | 81 | 85 | 1 | 0 | 83 | 171 | 99 | 59 |
| Sunny days | 15 | 20 | 17 | 21 | 17 | 13 | 25 | 30 | 13 | 12 | 13 | 17 |
| Rainy days | 16 | 8 | 14 | 9 | 14 | 17 | 6 | 1 | 17 | 19 | 17 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castainço during the most sunny months:
The largest precipitation sum in Castainço is at