Average annual temperature is 11.6 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -6.7 °C
Number of sunny days: 145 days
Number of rainy days: 212 days
Number of snow days: 8 days
Look at detailed online map of Istia-Sigliola-Greta
* Weather data for Istia-Sigliola-Greta 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) | 11.8 | 16.2 | 16.6 | 17.3 | 21.2 | 29.3 | 30.9 | 33.2 | 27.3 | 26.9 | 15.6 | 14.8 |
| Average daytime temperature (°C) | 5.6 | 7.2 | 10.8 | 12.4 | 16.0 | 22.3 | 27.0 | 26.1 | 22.6 | 18.7 | 10.5 | 8.1 |
| Average temperature (°C) | 3.0 | 3.0 | 6.6 | 8.1 | 12.5 | 18.0 | 21.8 | 21.0 | 17.8 | 14.6 | 7.4 | 5.0 |
| Average night temperature (°C) | 0.8 | 0.2 | 3.4 | 4.4 | 9.2 | 13.8 | 16.9 | 16.4 | 14.1 | 11.4 | 4.6 | 2.7 |
| Absolute minimum temperature (°C) | -6.7 | -5.1 | -3.1 | -2.0 | 5.1 | 9.9 | 12.9 | 10.2 | 10.5 | 7.4 | -2.5 | -3.5 |
| 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 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 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) | 4.1 | 6.7 | 8.1 | 10.4 | 9.0 | 12.1 | 13.3 | 11.8 | 10.2 | 7.5 | 5.2 | 4.2 |
| Precipitation (mm) | 186 | 68 | 58 | 52 | 231 | 101 | 35 | 72 | 34 | 130 | 176 | 118 |
| Sunny days | 9 | 17 | 10 | 8 | 6 | 10 | 15 | 16 | 19 | 15 | 7 | 13 |
| Rainy days | 18 | 8 | 20 | 22 | 25 | 20 | 16 | 15 | 11 | 16 | 23 | 18 |
| Snow days | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Istia-Sigliola-Greta during the most sunny months:
Months with the longest average daylight duration in Istia-Sigliola-Greta:
The largest precipitation sum in Istia-Sigliola-Greta is at