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Weather & Climate in La Unión, Spain
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
La Unión enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 52°F in January while summers reach 79°F in July. The area gets 315 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 11.3 inches (drier than the 38-inch national average). The city sits at an elevation of 341 feet.
Temperature
52°F Jan (11°C)
79°F Jul (26°C)
| Annual Average | 64.7°F |
| 20% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 315 days/yr |
Geography
| Elevation | 341 ft (104 m) |
| Area | 15.5 sq mi (40.1 km²) |
| Population Density | 1,145/sq mi |
| Coordinates | 37.6192°N, 0.8780°W |
| Timezone | Europe/Madrid |
Precipitation & Snow
Air Quality
Earthquake History
558 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Jul 14, 2025 | 23 km E of San Jos?, Spain | M5.2 | 130 km | 10 km |
| May 11, 2011 | 4 km NE of Lorca, Spain | M5.1 | 71 km | 1 km |
| Feb 2, 1999 | 12 km ESE of Calasparra, Spain | M4.8 | 88 km | 10 km |
| Aug 6, 2002 | 14 km S of Caravaca, Spain | M4.7 | 98 km | 10 km |
| Sep 2, 1996 | 2 km NE of Cazalla, Spain | M4.6 | 68 km | 20 km |
| Jun 30, 2005 | 45 km SE of Carboneras, Spain | M4.6 | 120 km | 5 km |
| May 11, 2011 | 3 km NE of Lorca, Spain | M4.5 | 71 km | 0 km |
| Jan 29, 2005 | 19 km SW of Bullas, Spain | M4.4 | 89 km | 5 km |
| Jun 20, 2003 | 10 km E of Torrevieja, Spain | M4.4 | 49 km | 8 km |
| Jul 16, 2022 | 60 km NNW of Mostaganem, Algeria | M4.4 | 146 km | 10 km |
| Feb 3, 2005 | 20 km NW of Lorca, Spain | M4.3 | 87 km | 8 km |
| Aug 14, 1991 | 10 km SE of Almansa, Spain | M4.2 | 133 km | 10 km |
| Jun 7, 1995 | 5 km E of Níjar, Spain | M4.1 | 133 km | 10 km |
| Aug 6, 2002 | 16 km S of Cehegín, Spain | M4.1 | 90 km | 0 km |
| Jul 20, 2003 | 87 km SSE of Moraira, Spain | M4.1 | 139 km | 16 km |
| Nov 11, 1993 | 40 km SSE of Villajoyosa, Spain | M4.1 | 98 km | 10 km |
| Feb 6, 2008 | 8 km SSE of Níjar, Spain | M4.1 | 140 km | 11 km |
| Aug 14, 1999 | 5 km S of Calasparra, Spain | M4.0 | 95 km | 2 km |
| Apr 16, 2004 | 10 km NW of Mazarrón, Spain | M4.0 | 45 km | 0 km |
| May 7, 1991 | 6 km SW of Chirivel, Spain | M4.0 | 128 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 1.0 in | Coldest |
| February | 54°F (12°C) | 1.0 in | |
| March | 57°F (14°C) | 1.1 in | |
| April | 61°F (16°C) | 1.0 in | |
| May | 67°F (19°C) | 1.1 in | |
| June | 74°F (23°C) | 0.6 in | |
| July | 79°F (26°C) | 0.2 in | Driest |
| August | 80°F (27°C) | 0.2 in | Warmest |
| September | 75°F (24°C) | 1.0 in | |
| October | 67°F (19°C) | 1.7 in | Wettest |
| November | 59°F (15°C) | 1.5 in | |
| December | 54°F (12°C) | 1.0 in |
La Unión has a seasonal temperature swing of 28°F / from 52°F in January to 80°F in August. Total annual precipitation is 11.3 inches, with October being the wettest month (1.7") and July the driest (0.2").