Average annual temperature is 6.0 °C
Absolute maximum temperature: 25.6 °C
Absolute minimum temperature: -13.7 °C
Number of sunny days: 120 days
Number of rainy days: 217 days
Number of snow days: 28 days
Look at detailed online map of Gromo San Marino
* Weather data for Gromo San Marino 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) | 7.6 | 11.9 | 10.9 | 14.1 | 17.9 | 24.9 | 24.3 | 25.6 | 22.9 | 21.2 | 10.6 | 11.2 |
| Average daytime temperature (°C) | 0.9 | 5.0 | 6.4 | 7.8 | 12.7 | 18.4 | 20.2 | 20.3 | 18.0 | 14.0 | 4.8 | 4.5 |
| Average temperature (°C) | -3.7 | -1.1 | 1.5 | 3.1 | 7.8 | 13.5 | 15.4 | 15.2 | 13.1 | 8.9 | -0.8 | -0.9 |
| Average night temperature (°C) | -7.3 | -5.3 | -2.9 | -1.5 | 2.9 | 8.0 | 10.1 | 10.4 | 8.5 | 4.2 | -5.4 | -4.9 |
| Absolute minimum temperature (°C) | -13.7 | -12.3 | -9.1 | -6.3 | -1.2 | 4.9 | 5.0 | 3.9 | 2.9 | -1.9 | -10.6 | -13.2 |
| 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) | 9.1 | 10.4 | 11.9 | 13.6 | 15.0 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| 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) | 6.1 | 8.4 | 8.4 | 10.1 | 9.0 | 12.3 | 12.7 | 10.8 | 9.6 | 7.5 | 6.7 | 5.6 |
| Precipitation (mm) | 74 | 12 | 70 | 106 | 163 | 176 | 299 | 225 | 137 | 322 | 131 | 151 |
| Sunny days | 20 | 18 | 14 | 10 | 0 | 2 | 0 | 0 | 12 | 12 | 14 | 18 |
| Rainy days | 5 | 6 | 11 | 17 | 31 | 28 | 31 | 31 | 18 | 19 | 12 | 8 |
| Snow days | 6 | 4 | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 5 |
The best time to visit Gromo San Marino during the most sunny months:
Months with the longest average daylight duration in Gromo San Marino:
The largest precipitation sum in Gromo San Marino is at