Average annual temperature is 14.2 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 181 days
Number of rainy days: 184 days
Look at detailed online map of Isonzo
* Weather data for Isonzo 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) | 12.6 | 15.5 | 19.4 | 21.8 | 27.2 | 30.7 | 34.5 | 35.9 | 29.1 | 26.0 | 17.6 | 13.8 |
| Average daytime temperature (°C) | 9.3 | 10.3 | 15.2 | 16.6 | 21.7 | 26.7 | 29.1 | 28.9 | 26.4 | 21.3 | 13.2 | 9.8 |
| Average temperature (°C) | 5.2 | 4.9 | 9.6 | 11.6 | 17.4 | 22.0 | 24.2 | 23.9 | 21.3 | 16.6 | 8.2 | 5.0 |
| Average night temperature (°C) | 2.0 | 0.9 | 4.7 | 6.8 | 13.3 | 17.4 | 19.6 | 19.4 | 16.9 | 12.8 | 4.2 | 1.8 |
| Absolute minimum temperature (°C) | -3.2 | -5.7 | 0.9 | 0.7 | 8.4 | 15.5 | 14.3 | 13.4 | 12.6 | 6.4 | -2.2 | -1.5 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.5 | 6.9 | 8.9 | 9.8 | 9.3 | 12.7 | 12.7 | 10.8 | 10.7 | 7.5 | 6.5 | 5.0 |
| Precipitation (mm) | 80 | 3 | 43 | 112 | 212 | 69 | 157 | 174 | 65 | 164 | 88 | 56 |
| Sunny days | 16 | 21 | 12 | 11 | 11 | 14 | 13 | 15 | 17 | 14 | 16 | 21 |
| Rainy days | 15 | 7 | 19 | 19 | 20 | 16 | 18 | 16 | 13 | 17 | 14 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Isonzo during the most sunny months:
Months with the longest average daylight duration in Isonzo:
The largest precipitation sum in Isonzo is at