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Weather & Climate in Riesi, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Riesi enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 50°F in January while summers reach 75°F in July. The area gets 305 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 17.1 inches (drier than the 38-inch national average). The city sits at an elevation of 1,083 feet.
Temperature
50°F Jan (10°C)
75°F Jul (24°C)
| Annual Average | 61.9°F |
| 15% above US avg | |
| January Average | 50°F (10°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 305 days/yr |
Geography
| Elevation | 1,083 ft (330 m) |
| Area | 32.4 sq mi (83.8 km²) |
| Population Density | 355/sq mi |
| Coordinates | 37.2808°N, 14.0832°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
837 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| Sep 6, 2002 | 34 km NNE of Santa Flavia, Italy | M6.0 | 127 km | 5 km |
| Dec 13, 1990 | 20 km ENE of Augusta, Italy | M5.6 | 120 km | 11 km |
| Sep 27, 2002 | 39 km NNE of Santa Flavia, Italy | M5.3 | 133 km | 5 km |
| Feb 7, 2025 | 39 km WSW of Leni, Italy | M5.2 | 137 km | 10 km |
| Sep 14, 1998 | 40 km N of Santa Flavia, Italy | M4.9 | 138 km | 10 km |
| Jun 26, 1993 | 1 km WNW of Tusa, Italy | M4.9 | 80 km | 14 km |
| Nov 25, 2001 | 6 km SW of Polizzi Generosa, Italy | M4.9 | 55 km | 10 km |
| May 6, 1994 | 2 km NNE of Alimena, Italy | M4.8 | 48 km | 46 km |
| Sep 7, 2009 | 62 km N of Cefalù, Italy | M4.8 | 147 km | 20 km |
| Apr 6, 1992 | 5 km NNE of Troina / Draginai, Italy | M4.7 | 77 km | 22 km |
| Mar 28, 1990 | 2 km NNW of San Giorgio, Italy | M4.7 | 126 km | 37 km |
| Dec 14, 1996 | 1 km SW of Sclafani Bagni, Italy | M4.7 | 63 km | 40 km |
| Jan 4, 2013 | 3 km NNE of Cesarò, Italy | M4.6 | 87 km | 10 km |
| Sep 28, 2002 | 43 km NNE of Santa Flavia, Italy | M4.6 | 136 km | 5 km |
| Apr 15, 2022 | 49 km ENE of Augusta, Italy | M4.6 | 149 km | 10 km |
| Feb 8, 2016 | 5 km SSW of Palazzolo Acreide, Italy | M4.5 | 76 km | 10 km |
| Dec 15, 1991 | 0 km WSW of Pennisi, Italy | M4.5 | 100 km | 5 km |
| Sep 6, 2002 | 40 km NNE of Santa Flavia, Italy | M4.5 | 132 km | 4 km |
| Aug 16, 2010 | 6 km S of Pianoconte, Italy | M4.5 | 146 km | 19 km |
| Sep 20, 2002 | Sicily, Italy | M4.5 | 134 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
9 tsunamis recorded within 500 km. Highest wave on record: 12.0 m (39 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1693 | ISLAND OF SICILY | Earthquake | 12.0 m | 54,000 | 84 km |
| 1988 | LA FOSSA VOLCANO, VULCANO IS. | Meteorological | 2.0 m | - | 147 km |
| 1990 | EASTERN SICILY | Earthquake | - | 19 | 120 km |
| 1818 | EASTERN SICILY | Earthquake | - | 72 | 99 km |
| 1726 | NORTHERN SICILY | Earthquake | - | 250 | 113 km |
| 1172 | ISLAND OF SICILY | Earthquake | - | - | 114 km |
| 1169 | EASTERN SICILY | Earthquake | - | 16,000 | 84 km |
| 1169 | CALABRIAN ARC | Astronomical | - | - | 96 km |
| 963 | SICILY | Earthquake | - | - | 114 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
7 volcanoes within 200 km. Closest: Etna (96 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Etna | Stratovolcano(es) | 3,295 m (10,810 ft) | 2020 | 96 km |
| Campi Flegrei del Mar di Sicilia | Submarine | -8 m (-26 ft) | 1867 | 124 km |
| Vulcano | Stratovolcano(es) | 500 m (1,640 ft) | 1890 | 147 km |
| Lipari | Stratovolcano(es) | 590 m (1,936 ft) | 1230 | 154 km |
| Panarea | Stratovolcano | 399 m (1,309 ft) | Unknown | 174 km |
| Pantelleria | Shield | 836 m (2,743 ft) | 1891 | 192 km |
| Stromboli | Stratovolcano | 924 m (3,031 ft) | 2020 | 195 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 2.2 in | Coldest |
| February | 50°F (10°C) | 1.7 in | |
| March | 52°F (11°C) | 1.4 in | |
| April | 56°F (13°C) | 1.3 in | |
| May | 63°F (17°C) | 0.7 in | |
| June | 71°F (22°C) | 0.2 in | |
| July | 75°F (24°C) | 0.1 in | Driest |
| August | 77°F (25°C) | 0.4 in | Warmest |
| September | 72°F (22°C) | 1.2 in | |
| October | 66°F (19°C) | 2.6 in | |
| November | 58°F (14°C) | 2.5 in | |
| December | 53°F (11°C) | 2.8 in | Wettest |
Riesi has a seasonal temperature swing of 26°F / from 50°F in January to 77°F in August. Total annual precipitation is 17.1 inches, with December being the wettest month (2.8") and July the driest (0.1").