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Weather & Climate in Fossa, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Fossa enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 41°F in January while summers reach 76°F in July. The area gets 280 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 41.7 inches. The area receives 7.0 inches of snow annually. The city sits at an elevation of 20 feet.
Temperature
41°F Jan (5°C)
76°F Jul (25°C)
| Annual Average | 57.6°F |
| 7% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 280 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 6.4 sq mi (16.5 km²) |
| Population Density | 94/sq mi |
| Coordinates | 45.4936°N, 12.1357°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,221 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 | 98 km | 6 km |
| May 29, 2012 | 1 km ENE of Medolla, Italy | M5.8 | 109 km | 10 km |
| Apr 12, 1998 | 5 km E of Kobarid, Slovenia | M5.6 | 144 km | 10 km |
| May 29, 2012 | 2 km NE of San Possidonio, Italy | M5.5 | 111 km | 7 km |
| Oct 15, 1996 | 2 km N of Correggio, Italy | M5.4 | 132 km | 10 km |
| Sep 14, 2003 | 3 km E of Monterenzio, Italy | M5.3 | 140 km | 10 km |
| Jul 12, 2004 | 7 km NE of Kobarid, Slovenia | M5.2 | 147 km | 8 km |
| May 10, 2000 | 7 km SE of Granarolo, Italy | M5.1 | 132 km | 10 km |
| May 29, 2012 | 2 km W of San Possidonio, Italy | M5.1 | 115 km | 10 km |
| Jun 3, 2012 | 3 km ENE of Novi di Modena, Italy | M5.1 | 115 km | 9 km |
| May 20, 2012 | 1 km SSW of Vigarano Mainarda, Italy | M5.0 | 89 km | 5 km |
| Nov 2, 2002 | 4 km N of Sant'Alberto, Italy | M5.0 | 102 km | 10 km |
| Jan 25, 2012 | 1 km N of Poviglio, Italy | M4.9 | 144 km | 33 km |
| Jul 17, 2011 | 0 km W of Sermide, Italy | M4.9 | 86 km | 6 km |
| May 20, 2012 | 2 km ENE of Medolla, Italy | M4.9 | 108 km | 10 km |
| May 29, 2012 | 2 km W of San Possidonio, Italy | M4.8 | 116 km | 11 km |
| May 8, 2000 | 3 km NE of Faenza, Italy | M4.8 | 132 km | 10 km |
| May 29, 2012 | 3 km ENE of Novi di Modena, Italy | M4.8 | 114 km | 3 km |
| May 20, 2012 | 3 km WSW of Bondeno, Italy | M4.8 | 91 km | 3 km |
| Feb 21, 1998 | 2 km ENE of Campagnola Emilia, Italy | M4.8 | 127 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 235.0 m (771 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1963 | VAJONT DAM, VAJONT RIVER | Meteorological | 235.0 m | 2,000 | 87 km |
| 1875 | ADRIATIC SEA | Earthquake | — | — | 145 km |
| 1868 | LAKE GARDA | Earthquake | — | — | 114 km |
| 1624 | DELTA OF THE PO | Earthquake | — | — | 103 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.3 in | |
| February | 40°F (5°C) | 1.8 in | Driest |
| March | 47°F (9°C) | 2.1 in | |
| April | 54°F (12°C) | 2.6 in | |
| May | 63°F (17°C) | 2.9 in | |
| June | 70°F (21°C) | 3.2 in | |
| July | 76°F (25°C) | 2.2 in | Warmest |
| August | 73°F (23°C) | 2.8 in | |
| September | 67°F (19°C) | 2.8 in | |
| October | 57°F (14°C) | 3.3 in | Wettest |
| November | 46°F (8°C) | 2.8 in | |
| December | 39°F (4°C) | 2.4 in | Coldest |
Fossa has a seasonal temperature swing of 38°F / from 39°F in December to 76°F in July. Total annual precipitation is 31.2 inches, with October being the wettest month (3.3") and February the driest (1.8").