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Weather & Climate in San Clemente, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Clemente enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 42°F in January while summers reach 77°F in July. The area gets 289 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 38.7 inches. The area receives 5.5 inches of snow annually. The city sits at an elevation of 449 feet.
Temperature
42°F Jan (5°C)
77°F Jul (25°C)
| Annual Average | 57.8°F |
| 7% above US avg | |
| January Average | 42°F (5°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 289 days/yr |
Geography
| Elevation | 449 ft (137 m) |
| Area | 49.9 sq mi (129.2 km²) |
| Population Density | 15/sq mi |
| Coordinates | 43.7191°N, 11.4576°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
2,293 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| Sep 26, 1997 | 3 km SSE of Nocera Umbra, Italy | M6.0 | 130 km | 10 km |
| May 20, 2012 | 4 km NNE of Massa Finalese, Italy | M6.0 | 131 km | 6 km |
| May 29, 2012 | 1 km ENE of Medolla, Italy | M5.8 | 129 km | 10 km |
| Sep 26, 1997 | 6 km WSW of Serravalle di Chienti, Italy | M5.7 | 137 km | 10 km |
| Oct 14, 1997 | 8 km NNW of Sellano, Italy | M5.5 | 143 km | 10 km |
| Oct 6, 1997 | 6 km E of Valtopina, Italy | M5.5 | 134 km | 10 km |
| May 29, 2012 | 2 km NE of San Possidonio, Italy | M5.5 | 135 km | 7 km |
| Mar 26, 1998 | 1 km E of Esanatoglia, Italy | M5.4 | 132 km | 10 km |
| Oct 15, 1996 | 2 km N of Correggio, Italy | M5.4 | 131 km | 10 km |
| Sep 14, 2003 | 3 km E of Monterenzio, Italy | M5.3 | 68 km | 10 km |
| Oct 3, 1997 | 3 km ENE of Valtopina, Italy | M5.3 | 130 km | 10 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 148 km | 10 km |
| Apr 3, 1998 | 8 km E of Valfabbrica, Italy | M5.2 | 118 km | 10 km |
| Jun 21, 2013 | 6 km WSW of Minucciano, Italy | M5.2 | 116 km | 5 km |
| May 10, 2000 | 7 km SE of Granarolo, Italy | M5.1 | 79 km | 10 km |
| May 29, 2012 | 2 km W of San Possidonio, Italy | M5.1 | 134 km | 10 km |
| Jun 3, 2012 | 3 km ENE of Novi di Modena, Italy | M5.1 | 138 km | 9 km |
| Sep 18, 2023 | 7 km SE of Marradi, Italy | M5.1 | 38 km | 10 km |
| May 20, 2012 | 1 km SSW of Vigarano Mainarda, Italy | M5.0 | 124 km | 5 km |
| Nov 2, 2002 | 4 km N of Sant'Alberto, Italy | M5.0 | 111 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
8 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1916 | CENTRAL ADRIATIC | Earthquake | — | 4 | 129 km |
| 1875 | ADRIATIC SEA | Earthquake | — | — | 93 km |
| 1846 | LIVORNO | Earthquake | — | 56 | 78 km |
| 1846 | TUSCANY | Earthquake | — | — | 81 km |
| 1742 | LIVORNO | Earthquake | — | — | 104 km |
| 1672 | CENTRAL ADRIATIC | Earthquake | — | 1,500 | 93 km |
| 1646 | LIVORNO | Earthquake | — | — | 94 km |
| 1624 | DELTA OF THE PO | Earthquake | — | — | 102 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Vulsini (130 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 130 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 3.1 in | Coldest |
| February | 43°F (6°C) | 3.0 in | |
| March | 48°F (9°C) | 3.2 in | |
| April | 53°F (12°C) | 3.7 in | |
| May | 62°F (16°C) | 2.8 in | |
| June | 68°F (20°C) | 2.6 in | |
| July | 77°F (25°C) | 1.6 in | Warmest, Driest |
| August | 74°F (23°C) | 2.4 in | |
| September | 67°F (19°C) | 3.4 in | |
| October | 58°F (15°C) | 4.5 in | |
| November | 49°F (9°C) | 5.4 in | Wettest |
| December | 43°F (6°C) | 4.0 in |
San Clemente has a seasonal temperature swing of 35°F / from 42°F in January to 77°F in July. Total annual precipitation is 39.5 inches, with November being the wettest month (5.4") and July the driest (1.6").