
Monti Sibillini National Park
- Annual mean
- 11.9 °C
- Warmest month
- August
- Wettest month
- November
Detailed climatology derived from representative 1991 to 2020 coordinate averages
Review long-term climate normals for Oasi naturalistica Lago di Alviano, including average minimum and maximum temperatures, daily precipitation rates, relative humidity, wind speed, and daylight hours. These monthly averages reflect representative-point climatology for the reserve, providing a factual baseline for understanding annual atmospheric rhythms rather than current weather or short-term forecasts.

Long term monthly averages tracking temperature ranges alongside daily precipitation rates across twelve months
Analyze average temperature bounds, daily precipitation rates, humidity, wind, and calculated daylight across the year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 5 °C-3.9° to 14.3° | 1.7 mm/day | 85% | 2.4 m/s | 9.3 hours |
| February | 5.5 °C-3.8° to 16.1° | 2.4 mm/day | 81.4% | 2.5 m/s | 10.3 hours |
| March | 8.4 °C-2.1° to 20.1° | 1.9 mm/day | 77.7% | 2.6 m/s | 11.7 hours |
| April | 11.8 °C0.6° to 23.9° | 2.1 mm/day | 73.9% | 2.3 m/s | 13.2 hours |
| May | 16.5 °C5.9° to 29.3° | 2 mm/day | 68.5% | 2.1 m/s | 14.4 hours |
| June | 21.5 °C9.8° to 34.7° | 1.5 mm/day | 59.9% | 2.1 m/s | 15.1 hours |
| July | 24.8 °C13° to 37.4° | 1 mm/day | 51.7% | 2.1 m/s | 14.8 hours |
| August | 25 °C13.6° to 37.4° | 1.1 mm/day | 52.4% | 2 m/s | 13.7 hours |
| September | 19.6 °C9.1° to 32.1° | 2.6 mm/day | 65.6% | 2.1 m/s | 12.3 hours |
| October | 15 °C4.8° to 26.3° | 2.9 mm/day | 75.8% | 2.2 m/s | 10.8 hours |
| November | 10 °C-0.3° to 20.4° | 3.6 mm/day | 83.9% | 2.4 m/s | 9.5 hours |
| December | 6.1 °C-3.3° to 15.2° | 2.6 mm/day | 85.4% | 2.5 m/s | 8.9 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparing long-term monthly averages for temperature, precipitation, humidity, wind, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly weather patterns and environmental normals across diverse protected landscapes








Uncover the complex terrain and mapped boundaries of Oasi naturalistica Lago di Alviano through MoriAtlas. Examine how this Tiber Valley reservoir functions as a critical wetland system, providing an essential look at the intersection of river conservation and habitat management within the Umbria region.