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Weather & Climate in Castrillón, Spain
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Castrillón enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 45°F in January while summers reach 65°F in July. The area gets 270 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 51.5 inches (wetter than the 38-inch national average). The area receives 5.8 inches of snow annually. The city sits at an elevation of 371 feet.
Temperature
45°F Jan (7°C)
65°F Jul (18°C)
| Annual Average | 55.7°F |
| 3% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 371 ft (113 m) |
| Area | 27.1 sq mi (70.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 43.5479°N, 5.9938°W |
| Timezone | Europe/Madrid |
Precipitation & Snow
Air Quality
Earthquake History
327 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| May 21, 1997 | 3 km NW of Becerreá, Spain | M5.4 | 122 km | 19 km |
| May 21, 1997 | 5 km NE of Becerreá, Spain | M5.3 | 117 km | 19 km |
| May 22, 1997 | 0 km E of Becerreá, Spain | M5.1 | 122 km | 17 km |
| Dec 24, 1995 | 5 km NE of Baralla, Spain | M5.1 | 120 km | 10 km |
| Nov 29, 1995 | 5 km NE of Baralla, Spain | M5.0 | 120 km | 18 km |
| Jun 10, 2006 | 12 km NNE of Castrillo de Cabrera, Spain | M4.8 | 130 km | 9 km |
| May 23, 1997 | 3 km NNW of San Román, Spain | M4.7 | 113 km | 10 km |
| May 22, 1997 | 10 km WNW of Navia de Suarna, Spain | M4.5 | 110 km | 10 km |
| Jul 17, 1998 | 7 km SSW of Santa Eulalia de Oscos, Spain | M4.4 | 95 km | 5 km |
| Mar 15, 1995 | 33 km NNE of Cariño, Spain | M4.4 | 142 km | 10 km |
| Feb 4, 1997 | 5 km NE of Baralla, Spain | M4.2 | 120 km | 22 km |
| May 22, 1997 | 12 km ENE of O Páramo, Spain | M4.1 | 112 km | 10 km |
| Oct 12, 1996 | 6 km SSW of Bárzana, Spain | M4.1 | 49 km | 10 km |
| May 23, 1997 | 4 km NE of Baralla, Spain | M4.1 | 121 km | 10 km |
| Mar 31, 1998 | 6 km SE of Láncara, Spain | M4.1 | 132 km | 9 km |
| May 22, 1997 | 4 km N of Becerreá, Spain | M4.1 | 120 km | 10 km |
| Feb 28, 2008 | 34 km N of El Franco, Spain | M4.1 | 73 km | 23 km |
| Feb 3, 1997 | 6 km NE of Baralla, Spain | M4.1 | 119 km | 23 km |
| Apr 15, 1994 | 5 km ESE of Burela de Cabo, Spain | M4.0 | 109 km | 29 km |
| Dec 24, 1995 | 2 km E of O Páramo, Spain | M4.0 | 123 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 3.9 in | Coldest |
| February | 49°F (9°C) | 3.5 in | |
| March | 50°F (10°C) | 3.3 in | |
| April | 52°F (11°C) | 4.2 in | Wettest |
| May | 56°F (14°C) | 3.5 in | |
| June | 61°F (16°C) | 2.1 in | |
| July | 65°F (18°C) | 1.9 in | Driest |
| August | 66°F (19°C) | 1.9 in | Warmest |
| September | 63°F (17°C) | 2.4 in | |
| October | 58°F (14°C) | 4.2 in | |
| November | 52°F (11°C) | 4.2 in | |
| December | 49°F (9°C) | 4.0 in |
Castrillón has a seasonal temperature swing of 21°F / from 45°F in January to 66°F in August. Total annual precipitation is 39.1 inches, with April being the wettest month (4.2") and July the driest (1.9").