São Matias, Portugal

Full City Profile

569 Population 20/sq mi density

548 ft Elevation 167 meters

62°F Avg Temperature 17°C

São Matias 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 296 sunny days per year. Annual precipitation totals 22.3 inches. The area receives 0.0 inches of snow annually.

Temperature

50°F Jan (10°C) 75°F Jul (24°C)

Annual Average	61.7°F
	14% above US avg
January Average	50°F (10°C)
July Average	75°F (24°C)
Sunny Days	296 days/yr

Geography

Elevation	548 ft (167 m)
Area	28.3 sq mi (73.2 km²)
Population Density	20/sq mi
Coordinates	38.1093°N, 7.8564°W
Timezone	Europe/Lisbon

Precipitation & Snow

Annual Rainfall 22.3"

41% below US avg

Snowfall 0.0"

Wettest Month (Dec) 3.82"

Driest Month (Jul) 0.12"

Air Quality

Earthquake History

166 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.0. Most recent: M2.9 on Apr 16, 2025.

Aug 26, 2024	56 km W of Sines, Portugal	M5.0	145 km
Feb 17, 2025	1 km NE of Charneca de Caparica, Portugal	M4.8	129 km
Jul 4, 1994	13 km ENE of El Cerro de Andévalo, Spain	M4.3	99 km
Aug 17, 2017	5 km N of Arruda dos Vinhos, Portugal	M4.2	148 km
Jan 15, 2018	25 km NNW of Évora, Portugal	M4.1	76 km
Mar 27, 2010	13 km SE of Vale da Amoreira, Portugal	M4.1	98 km
Jan 22, 2006	0 km SE of Feria, Spain	M4.1	122 km
Jan 9, 2007	22 km SSW of Faro, Portugal	M4.0	142 km
Mar 20, 2007	38 km S of Isla Cristina, Spain	M3.9	149 km
Sep 20, 1999	0 km SW of Caxias, Portugal	M3.8	140 km
Mar 26, 2011	6 km NNW of São Marcos da Serra, Portugal	M3.8	92 km
Jul 31, 1998	23 km W of Estremoz, Portugal	M3.8	85 km
Mar 28, 2002	43 km W of Sines, Portugal	M3.7	132 km
Mar 30, 1995	5 km N of Cabeza la Vaca, Spain	M3.7	125 km
Sep 4, 1997	24 km WNW of Sines, Portugal	M3.7	109 km
Jan 19, 1997	9 km WNW of Redondo, Portugal	M3.6	67 km
Sep 11, 2017	5 km ESE of Lagos, Portugal	M3.6	133 km
May 28, 1995	15 km SSW of Faro, Portugal	M3.6	137 km
Mar 27, 2000	26 km S of La Antilla, Spain	M3.6	140 km
Feb 14, 1996	15 km SSW of Évora, Portugal	M3.5	38 km

Source: USGS (M2.5+, 1990–2025)

Tsunami History

1 tsunami recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
1531	TAGUS RIVER, LISBON	Earthquake	—	30,000	127 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	50°F (10°C)	3.2 in	Coldest
February	52°F (11°C)	2.4 in
March	55°F (13°C)	1.7 in
April	57°F (14°C)	2.3 in
May	63°F (17°C)	1.8 in
June	70°F (21°C)	0.8 in
July	75°F (24°C)	0.1 in	Warmest, Driest
August	75°F (24°C)	0.2 in
September	72°F (22°C)	0.9 in
October	64°F (18°C)	2.4 in
November	57°F (14°C)	2.8 in
December	52°F (11°C)	3.8 in	Wettest

São Matias has a seasonal temperature swing of 25°F / from 50°F in January to 75°F in July. Total annual precipitation is 22.3 inches, with December being the wettest month (3.8") and July the driest (0.1").

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