Average annual temperature is 11.3 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -6.2 °C
Number of sunny days: 139 days
Number of rainy days: 218 days
Number of snow days: 8 days
Look at detailed online map of Il Costello
* Weather data for Il Costello Italy is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.6 | 16.1 | 16.5 | 17.1 | 21.9 | 27.3 | 29.1 | 34.0 | 26.2 | 27.5 | 15.0 | 15.4 |
| Average daytime temperature (°C) | 5.6 | 7.9 | 11.0 | 12.7 | 16.2 | 21.8 | 25.1 | 25.6 | 21.6 | 18.1 | 10.5 | 8.5 |
| Average temperature (°C) | 3.2 | 3.3 | 6.7 | 8.0 | 12.2 | 17.5 | 20.5 | 20.5 | 16.7 | 13.9 | 7.1 | 5.0 |
| Average night temperature (°C) | 0.9 | 0.0 | 3.1 | 3.6 | 8.5 | 12.9 | 16.1 | 15.7 | 12.3 | 10.4 | 4.1 | 2.4 |
| Absolute minimum temperature (°C) | -4.8 | -6.2 | -2.0 | -1.7 | 5.3 | 9.5 | 13.1 | 11.6 | 8.7 | 5.2 | -2.1 | -3.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.4 | 6.6 | 8.1 | 10.2 | 9.8 | 12.1 | 12.9 | 11.7 | 9.8 | 6.9 | 5.6 | 4.2 |
| Precipitation (mm) | 169 | 40 | 85 | 58 | 146 | 94 | 53 | 66 | 102 | 305 | 197 | 167 |
| Sunny days | 9 | 19 | 12 | 7 | 5 | 10 | 10 | 14 | 18 | 11 | 10 | 14 |
| Rainy days | 16 | 8 | 18 | 23 | 26 | 20 | 21 | 17 | 12 | 20 | 20 | 17 |
| Snow days | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Il Costello during the most sunny months:
Months with the longest average daylight duration in Il Costello:
The largest precipitation sum in Il Costello is at