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Weather & Climate in San Giacomo, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Giacomo experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 39°F in January while summers reach 71°F in July. The area gets 287 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 27.0 inches (drier than the 38-inch national average). The city sits at an elevation of 797 feet.
Temperature
39°F Jan (4°C)
71°F Jul (22°C)
| Annual Average | 54.2°F |
| 0% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 287 days/yr |
Geography
| Elevation | 797 ft (243 m) |
| Area | 162.6 sq mi (421.1 km²) |
| Population Density | 13/sq mi |
| Coordinates | 42.7939°N, 12.7524°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,571 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Apr 6, 2009 | 3 km SE of Sassa, Italy | M6.3 | 70 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 36 km | 4 km |
| Sep 26, 1997 | 3 km SSE of Nocera Umbra, Italy | M6.0 | 33 km | 10 km |
| Sep 26, 1997 | 6 km WSW of Serravalle di Chienti, Italy | M5.7 | 30 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 44 km | 7 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 33 km | 3 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 43 km | 10 km |
| Oct 6, 1997 | 6 km E of Valtopina, Italy | M5.5 | 29 km | 10 km |
| Oct 14, 1997 | 8 km NNW of Sellano, Italy | M5.5 | 22 km | 10 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 82 km | 15 km |
| Mar 26, 1998 | 1 km E of Esanatoglia, Italy | M5.4 | 54 km | 10 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 59 km | 15 km |
| Jul 21, 2013 | 3 km ENE of Marcelli, Italy | M5.4 | 108 km | 8 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 17 km | 10 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 40 km | 10 km |
| Oct 3, 1997 | 3 km ENE of Valtopina, Italy | M5.3 | 31 km | 10 km |
| Apr 3, 1998 | 8 km E of Valfabbrica, Italy | M5.2 | 41 km | 10 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 48 km | 7 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 57 km | 3 km |
| Apr 6, 2009 | 5 km ENE of Pizzoli, Italy | M5.1 | 63 km | 9 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1930 | CENTRAL ADRIATIC | Earthquake | — | 18 | 135 km |
| 1916 | CENTRAL ADRIATIC | Earthquake | — | 4 | 140 km |
| 1672 | CENTRAL ADRIATIC | Earthquake | — | 1,500 | 127 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Vulsini (71 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 71 km |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 118 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 1.6 in | Coldest, Driest |
| February | 41°F (5°C) | 1.9 in | |
| March | 45°F (7°C) | 1.8 in | |
| April | 50°F (10°C) | 2.2 in | |
| May | 59°F (15°C) | 2.4 in | |
| June | 66°F (19°C) | 2.3 in | |
| July | 71°F (22°C) | 1.7 in | Warmest |
| August | 71°F (22°C) | 2.0 in | |
| September | 65°F (18°C) | 2.8 in | |
| October | 56°F (13°C) | 3.1 in | Wettest |
| November | 47°F (8°C) | 3.0 in | |
| December | 41°F (5°C) | 2.3 in |
San Giacomo has a seasonal temperature swing of 32°F / from 39°F in January to 71°F in July. Total annual precipitation is 27.0 inches, with October being the wettest month (3.1") and January the driest (1.6").