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Seixal, Portugal

Full City Profile

2,776 Population 479/sq mi density
66 ft Elevation 20 meters
64°F Avg Temperature 18°C
Seixal enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 52°F in January while summers reach 73°F in July. The area gets 324 sunny days per year. Annual precipitation totals 18.3 inches. The area receives 0.0 inches of snow annually.

Temperature

52°F Jan (11°C) 73°F Jul (23°C)
Annual Average63.7°F
18% above US avg
January Average52°F (11°C)
July Average73°F (23°C)
Sunny Days324 days/yr

Geography

Elevation66 ft (20 m)
Area5.8 sq mi (15.0 km²)
Population Density479/sq mi
Coordinates38.6401°N, 9.1014°W
TimezoneEurope/Lisbon

Precipitation & Snow

Annual Rainfall 18.3"
52% below US avg
Snowfall 0.0"
Wettest Month (Dec) 4.53"
Driest Month (Jul) 0.24"

Air Quality

Earthquake History

112 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 77 km
Feb 17, 2025 1 km NE of Charneca de Caparica, Portugal M4.8 7 km
Aug 19, 2016 84 km W of Peniche, Portugal M4.4 128 km
Aug 17, 2017 5 km N of Arruda dos Vinhos, Portugal M4.2 44 km
Jan 15, 2018 25 km NNW of Évora, Portugal M4.1 101 km
Mar 27, 2010 13 km SE of Vale da Amoreira, Portugal M4.1 134 km
Aug 4, 2007 92 km W of Colares, Portugal M4.0 125 km
Mar 7, 1997 66 km NW of Peniche, Portugal M3.9 147 km
Sep 20, 1999 0 km SW of Caxias, Portugal M3.8 17 km
Mar 26, 2011 6 km NNW of São Marcos da Serra, Portugal M3.8 149 km
Jul 31, 1998 23 km W of Estremoz, Portugal M3.8 111 km
Sep 4, 1997 24 km WNW of Sines, Portugal M3.7 64 km
Apr 10, 2001 6 km SSE of Louriçal, Portugal M3.7 150 km
Mar 28, 2002 43 km W of Sines, Portugal M3.7 76 km
Jan 6, 2007 36 km SSW of Cascais, Portugal M3.6 54 km
Feb 1, 2017 4 km WSW of Porto de Mós, Portugal M3.6 108 km
Jan 19, 1997 9 km WNW of Redondo, Portugal M3.6 127 km
Feb 18, 1990 2 km ENE of Abrigada, Portugal M3.6 58 km
Apr 30, 1999 7 km WNW of Marinha Grande, Portugal M3.6 126 km
Sep 4, 1996 4 km E of Santo Isidoro, Portugal M3.6 45 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 7 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 52°F (11°C) 3.9 in Coldest
February 54°F (12°C) 3.2 in
March 57°F (14°C) 1.9 in
April 59°F (15°C) 2.3 in
May 63°F (17°C) 2.0 in
June 68°F (20°C) 0.7 in
July 73°F (23°C) 0.2 in Warmest, Driest
August 72°F (22°C) 0.2 in
September 70°F (21°C) 1.1 in
October 65°F (18°C) 2.9 in
November 58°F (14°C) 4.0 in
December 54°F (12°C) 4.5 in Wettest

Seixal has a seasonal temperature swing of 20°F / from 52°F in January to 73°F in July. Total annual precipitation is 27.1 inches, with December being the wettest month (4.5") and July the driest (0.2").

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