Average annual temperature is 11.8 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 187 days
Number of rainy days: 177 days
Number of snow days: 1 day
Look at detailed online map of Arcos
* Weather data for Arcos 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) | 10.2 | 13.7 | 18.4 | 22.8 | 23.4 | 28.8 | 27.9 | 35.0 | 25.1 | 26.6 | 16.4 | 12.0 |
| Average daytime temperature (°C) | 7.1 | 9.0 | 11.5 | 17.3 | 18.4 | 21.6 | 24.2 | 26.4 | 19.9 | 17.5 | 11.8 | 7.8 |
| Average temperature (°C) | 4.0 | 4.5 | 7.7 | 11.8 | 12.9 | 16.9 | 18.2 | 20.1 | 15.6 | 14.5 | 9.1 | 5.5 |
| Average night temperature (°C) | 1.1 | 0.6 | 4.3 | 6.7 | 7.8 | 12.5 | 12.5 | 14.4 | 12.0 | 11.6 | 6.7 | 3.1 |
| Absolute minimum temperature (°C) | -4.4 | -4.6 | -4.1 | 1.0 | 3.9 | 8.9 | 8.7 | 9.2 | 6.7 | 5.0 | 1.6 | -0.8 |
| 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) | 5.7 | 9.2 | 7.5 | 10.3 | 12.0 | 12.7 | 13.2 | 12.2 | 9.9 | 6.0 | 4.6 | 4.8 |
| Precipitation (mm) | 212 | 16 | 85 | 34 | 67 | 130 | 6 | 0 | 141 | 333 | 218 | 142 |
| Sunny days | 17 | 19 | 13 | 19 | 14 | 9 | 20 | 26 | 11 | 12 | 11 | 16 |
| Rainy days | 14 | 8 | 18 | 11 | 17 | 21 | 11 | 5 | 19 | 19 | 19 | 15 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Arcos during the most sunny months:
The largest precipitation sum in Arcos is at