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Weather & Climate in Castelsardo, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Castelsardo enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 48°F in January while summers reach 73°F in July. The area gets 293 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 23.6 inches (drier than the 38-inch national average). The city sits at an elevation of 374 feet.
Temperature
48°F Jan (9°C)
73°F Jul (23°C)
| Annual Average | 59.4°F |
| 10% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 374 ft (114 m) |
| Area | 21.6 sq mi (55.9 km²) |
| Population Density | 278/sq mi |
| Coordinates | 40.9126°N, 8.7145°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
32 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.
| Apr 26, 2000 | 39 km E of Golfo Aranci, Italy | M5.1 | 117 km | 10 km |
| Jul 7, 2011 | 77 km WSW of Cargèse, France | M5.1 | 143 km | 11 km |
| Mar 3, 2001 | 31 km ENE of Budoni, Italy | M4.8 | 112 km | 10 km |
| Nov 7, 2001 | 56 km ENE of Porto Cervo, Italy | M4.6 | 130 km | 10 km |
| Apr 26, 2000 | 37 km ENE of San Teodoro, Italy | M4.4 | 114 km | 10 km |
| Feb 5, 2009 | 30 km ENE of San Teodoro, Italy | M4.3 | 109 km | 13 km |
| Jun 27, 2000 | 33 km E of Golfo Aranci, Italy | M4.3 | 111 km | 10 km |
| Apr 21, 2001 | 22 km E of Golfo Aranci, Italy | M3.9 | 100 km | 10 km |
| Feb 10, 2002 | 54 km E of Golfo Aranci, Italy | M3.9 | 131 km | 10 km |
| Apr 21, 1997 | 68 km NW of Stintino, Italy | M3.8 | 101 km | 10 km |
| Dec 20, 2001 | 2 km NNW of Santu Lussurgiu, Italy | M3.5 | 84 km | 10 km |
| Mar 18, 1993 | 97 km NW of Stintino, Italy | M3.4 | 130 km | 10 km |
| Jun 14, 2001 | 86 km WSW of Stintino, Italy | M3.3 | 126 km | 10 km |
| Oct 23, 1993 | 89 km WSW of Cargèse, France | M3.3 | 122 km | 10 km |
| Aug 28, 2002 | western Mediterranean Sea | M3.3 | 147 km | 33 km |
| Oct 20, 2003 | 4 km SSE of Zonza, France | M3.2 | 98 km | 8 km |
| Jun 23, 1997 | 78 km WSW of Cargèse, France | M3.2 | 128 km | 10 km |
| Jul 23, 2003 | 81 km WSW of Stintino, Italy | M3.1 | 121 km | 10 km |
| Jun 21, 1996 | 86 km WSW of Stintino, Italy | M3.0 | 127 km | 10 km |
| Jun 10, 2000 | 64 km WSW of Cargèse, France | M2.9 | 129 km | 20 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 2.3 in | Coldest |
| February | 48°F (9°C) | 2.4 in | |
| March | 50°F (10°C) | 2.2 in | |
| April | 54°F (12°C) | 2.0 in | |
| May | 61°F (16°C) | 1.5 in | |
| June | 68°F (20°C) | 0.8 in | |
| July | 73°F (23°C) | 0.2 in | Driest |
| August | 74°F (23°C) | 0.6 in | Warmest |
| September | 69°F (20°C) | 1.5 in | |
| October | 62°F (17°C) | 3.1 in | |
| November | 55°F (13°C) | 3.7 in | Wettest |
| December | 50°F (10°C) | 3.4 in |
Castelsardo has a seasonal temperature swing of 26°F / from 48°F in January to 74°F in August. Total annual precipitation is 23.6 inches, with November being the wettest month (3.7") and July the driest (0.2").