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Alfragide, Portugal

Full City Profile

17,044 Population 17,571/sq mi density
417 ft Elevation 127 meters
64°F Avg Temperature 18°C
Alfragide 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

Elevation417 ft (127 m)
Area1.0 sq mi (2.5 km²)
Population Density17,571/sq mi
Coordinates38.7320°N, 9.2192°W
TimezoneEurope/Lisbon

Precipitation & Snow

Annual Rainfall 18.3"
52% below US avg
Snowfall 0.0"
Wettest Month (Dec) 4.57"
Driest Month (Jul) 0.28"

Air Quality

Earthquake History

107 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 83 km
Feb 17, 2025 1 km NE of Charneca de Caparica, Portugal M4.8 12 km
Aug 19, 2016 84 km W of Peniche, Portugal M4.4 114 km
Aug 17, 2017 5 km N of Arruda dos Vinhos, Portugal M4.2 36 km
Jan 15, 2018 25 km NNW of Évora, Portugal M4.1 110 km
Mar 27, 2010 13 km SE of Vale da Amoreira, Portugal M4.1 142 km
Aug 4, 2007 92 km W of Colares, Portugal M4.0 113 km
Mar 7, 1997 66 km NW of Peniche, Portugal M3.9 133 km
Mar 9, 1990 116 km W of Ericeira, Portugal M3.8 138 km
Sep 20, 1999 0 km SW of Caxias, Portugal M3.8 7 km
Jul 31, 1998 23 km W of Estremoz, Portugal M3.8 119 km
Mar 28, 2002 43 km W of Sines, Portugal M3.7 84 km
Sep 4, 1997 24 km WNW of Sines, Portugal M3.7 75 km
Apr 10, 2001 6 km SSE of Louriçal, Portugal M3.7 143 km
Feb 1, 2017 4 km WSW of Porto de Mós, Portugal M3.6 100 km
Jan 6, 2007 36 km SSW of Cascais, Portugal M3.6 51 km
Apr 30, 1999 7 km WNW of Marinha Grande, Portugal M3.6 117 km
Jan 19, 1997 9 km WNW of Redondo, Portugal M3.6 137 km
Sep 4, 1996 4 km E of Santo Isidoro, Portugal M3.6 32 km
Feb 18, 1990 2 km ENE of Abrigada, Portugal M3.6 51 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 11 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 52°F (11°C) 4.1 in Coldest
February 54°F (12°C) 3.4 in
March 57°F (14°C) 2.0 in
April 58°F (15°C) 2.4 in
May 62°F (17°C) 2.2 in
June 67°F (19°C) 0.8 in
July 73°F (23°C) 0.3 in Warmest, Driest
August 72°F (22°C) 0.3 in
September 69°F (21°C) 1.1 in
October 64°F (18°C) 3.1 in
November 58°F (14°C) 4.1 in
December 54°F (12°C) 4.6 in Wettest

Alfragide has a seasonal temperature swing of 20°F / from 52°F in January to 73°F in July. Total annual precipitation is 28.4 inches, with December being the wettest month (4.6") and July the driest (0.3").

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