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Weather & Climate in Siamaggiore, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Siamaggiore enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 51°F in January while summers reach 76°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 21.4 inches (drier than the 38-inch national average). The city sits at an elevation of 26 feet.
Temperature
51°F Jan (10°C)
76°F Jul (25°C)
| Annual Average | 62.6°F |
| 16% above US avg | |
| January Average | 51°F (10°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 64.6 sq mi (167.3 km²) |
| Population Density | 10/sq mi |
| Coordinates | 39.9497°N, 8.6346°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
10 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.
| Jan 20, 2005 | 126 km WNW of Buggerru, Italy | M4.3 | 141 km | 10 km |
| Mar 24, 2006 | western Mediterranean Sea | M4.1 | 121 km | 9 km |
| Dec 20, 2001 | 2 km NNW of Santu Lussurgiu, Italy | M3.5 | 24 km | 10 km |
| Mar 22, 2006 | 9 km S of Pula, Italy | M3.4 | 119 km | 10 km |
| Jun 14, 2001 | 86 km WSW of Stintino, Italy | M3.3 | 148 km | 10 km |
| Jul 23, 2003 | 81 km WSW of Stintino, Italy | M3.1 | 143 km | 10 km |
| Jul 13, 2006 | 5 km W of Capoterra, Italy | M2.8 | 89 km | 10 km |
| Aug 1, 2006 | Sardinia, Italy | M2.8 | 131 km | 10 km |
| Apr 24, 2007 | 1 km WSW of Olbia, Italy | M2.7 | 129 km | 15 km |
| Jan 21, 2007 | 12 km ENE of La Caletta, Italy | M2.6 | 133 km | 1 km |
| Jul 18, 2007 | 30 km ENE of La Caletta, Italy | M2.5 | 150 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (10°C) | 2.2 in | Coldest |
| February | 51°F (11°C) | 2.4 in | |
| March | 54°F (12°C) | 2.1 in | |
| April | 57°F (14°C) | 2.0 in | |
| May | 64°F (18°C) | 1.5 in | |
| June | 71°F (22°C) | 0.7 in | |
| July | 76°F (25°C) | 0.2 in | Driest |
| August | 78°F (25°C) | 0.2 in | Warmest |
| September | 73°F (23°C) | 1.3 in | |
| October | 66°F (19°C) | 2.9 in | |
| November | 58°F (14°C) | 3.5 in | Wettest |
| December | 53°F (11°C) | 2.6 in |
Siamaggiore has a seasonal temperature swing of 27°F / from 51°F in January to 78°F in August. Total annual precipitation is 21.4 inches, with November being the wettest month (3.5") and July the driest (0.2").