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Weather & Climate in San Martino in Rio, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Martino in Rio enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 41°F in January while summers reach 78°F in July. The area gets 297 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 35.7 inches. The area receives 10.9 inches of snow annually. The city sits at an elevation of 118 feet.
Temperature
41°F Jan (5°C)
78°F Jul (25°C)
| Annual Average | 58.4°F |
| 8% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 118 ft (36 m) |
| Area | 11.5 sq mi (29.7 km²) |
| Population Density | 531/sq mi |
| Coordinates | 44.7337°N, 10.7849°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
2,042 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| May 20, 2012 | 4 km NNE of Massa Finalese, Italy | M6.0 | 39 km | 6 km |
| May 29, 2012 | 1 km ENE of Medolla, Italy | M5.8 | 27 km | 10 km |
| May 29, 2012 | 2 km NE of San Possidonio, Italy | M5.5 | 25 km | 7 km |
| Oct 15, 1996 | 2 km N of Correggio, Italy | M5.4 | 7 km | 10 km |
| Sep 14, 2003 | 3 km E of Monterenzio, Italy | M5.3 | 69 km | 10 km |
| Jun 21, 2013 | 6 km WSW of Minucciano, Italy | M5.2 | 83 km | 5 km |
| May 29, 2012 | 2 km W of San Possidonio, Italy | M5.1 | 21 km | 10 km |
| Sep 18, 2023 | 7 km SE of Marradi, Italy | M5.1 | 106 km | 10 km |
| May 10, 2000 | 7 km SE of Granarolo, Italy | M5.1 | 107 km | 10 km |
| Jun 3, 2012 | 3 km ENE of Novi di Modena, Italy | M5.1 | 22 km | 9 km |
| Apr 11, 2003 | 1 km SSW of Carezzano Maggiore, Italy | M5.0 | 150 km | 4 km |
| Nov 2, 2002 | 4 km N of Sant'Alberto, Italy | M5.0 | 111 km | 10 km |
| May 20, 2012 | 1 km SSW of Vigarano Mainarda, Italy | M5.0 | 57 km | 5 km |
| Jan 27, 2012 | 4 km SE of Berceto, Italy | M5.0 | 66 km | 60 km |
| Jan 25, 2012 | 1 km N of Poviglio, Italy | M4.9 | 24 km | 33 km |
| Jan 25, 2013 | 3 km ENE of Castiglione di Garfagnana, Italy | M4.9 | 68 km | 16 km |
| Apr 18, 2005 | 2 km WSW of Marsaglia, Italy | M4.9 | 114 km | 0 km |
| Jul 17, 2011 | 0 km W of Sermide, Italy | M4.9 | 50 km | 6 km |
| Jun 30, 2013 | 6 km SW of Minucciano, Italy | M4.9 | 84 km | 10 km |
| Oct 29, 1995 | 0 km WNW of Adro, Italy | M4.9 | 118 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
7 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1875 | ADRIATIC SEA | Earthquake | — | — | 141 km |
| 1868 | LAKE GARDA | Earthquake | — | — | 108 km |
| 1846 | LIVORNO | Earthquake | — | 56 | 149 km |
| 1846 | TUSCANY | Earthquake | — | — | 139 km |
| 1742 | LIVORNO | Earthquake | — | — | 145 km |
| 1646 | LIVORNO | Earthquake | — | — | 137 km |
| 1624 | DELTA OF THE PO | Earthquake | — | — | 82 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.0 in | |
| February | 40°F (4°C) | 1.7 in | |
| March | 48°F (9°C) | 2.1 in | |
| April | 54°F (12°C) | 2.5 in | |
| May | 63°F (17°C) | 2.5 in | |
| June | 70°F (21°C) | 2.3 in | |
| July | 78°F (25°C) | 1.7 in | Warmest, Driest |
| August | 75°F (24°C) | 2.6 in | |
| September | 67°F (20°C) | 2.6 in | |
| October | 57°F (14°C) | 3.3 in | Wettest |
| November | 45°F (7°C) | 2.8 in | |
| December | 38°F (3°C) | 2.2 in | Coldest |
San Martino in Rio has a seasonal temperature swing of 40°F / from 38°F in December to 78°F in July. Total annual precipitation is 28.4 inches, with October being the wettest month (3.3") and July the driest (1.7").