Average annual temperature is 17.5 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: 0.6 °C
Number of sunny days: 183 days
Number of rainy days: 182 days
Look at detailed online map of Castel Volturno
* Weather data for Castel Volturno 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) | 16.6 | 18.1 | 19.3 | 23.1 | 26.0 | 30.8 | 35.4 | 35.5 | 32.8 | 27.9 | 22.1 | 20.3 |
| Average daytime temperature (°C) | 13.8 | 13.5 | 15.9 | 17.2 | 21.3 | 26.0 | 31.2 | 29.4 | 28.6 | 25.0 | 18.7 | 15.6 |
| Average temperature (°C) | 9.9 | 9.1 | 12.4 | 13.6 | 17.9 | 22.2 | 27.0 | 25.2 | 23.6 | 20.9 | 15.5 | 12.0 |
| Average night temperature (°C) | 7.0 | 5.3 | 8.9 | 10.1 | 14.8 | 18.6 | 22.6 | 21.2 | 19.6 | 17.0 | 11.8 | 8.7 |
| Absolute minimum temperature (°C) | 2.6 | 0.6 | 5.2 | 5.9 | 11.7 | 16.1 | 19.4 | 17.4 | 16.5 | 13.9 | 3.1 | 4.6 |
| 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) | 6.5 | 8.1 | 9.3 | 10.3 | 9.3 | 12.7 | 13.6 | 12.3 | 10.7 | 9.1 | 6.8 | 6.9 |
| Precipitation (mm) | 175 | 51 | 60 | 74 | 169 | 77 | 9 | 31 | 27 | 85 | 186 | 57 |
| Sunny days | 12 | 19 | 12 | 13 | 9 | 14 | 25 | 18 | 22 | 16 | 5 | 18 |
| Rainy days | 19 | 9 | 19 | 17 | 22 | 16 | 6 | 13 | 8 | 15 | 25 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castel Volturno during the most sunny months:
The largest precipitation sum in Castel Volturno is at