Olho Marinho, Portugal

Full City Profile

1,158 Population 164/sq mi density

157 ft Elevation 48 meters

62°F Avg Temperature 17°C

Olho Marinho enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 51°F in January while summers reach 68°F in July. The area gets 319 sunny days per year. Annual precipitation totals 36.0 inches. The area receives 0.0 inches of snow annually.

Temperature

51°F Jan (11°C) 68°F Jul (20°C)

Annual Average	61.7°F
	14% above US avg
January Average	51°F (11°C)
July Average	68°F (20°C)
Sunny Days	319 days/yr

Geography

Elevation	157 ft (48 m)
Area	7.1 sq mi (18.3 km²)
Population Density	164/sq mi
Coordinates	39.3279°N, 9.2318°W
Timezone	Europe/Lisbon

Precipitation & Snow

Annual Rainfall 36.0"

5% below US avg

Snowfall 0.0"

Wettest Month (Dec) 3.90"

Driest Month (Jul) 0.24"

Air Quality

Earthquake History

88 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	147 km
Feb 17, 2025	1 km NE of Charneca de Caparica, Portugal	M4.8	78 km
Aug 19, 2016	84 km W of Peniche, Portugal	M4.4	97 km
Aug 17, 2017	5 km N of Arruda dos Vinhos, Portugal	M4.2	35 km
Jan 15, 2018	25 km NNW of Évora, Portugal	M4.1	125 km
Mar 27, 2010	13 km SE of Vale da Amoreira, Portugal	M4.1	145 km
Aug 4, 2007	92 km W of Colares, Portugal	M4.0	119 km
Mar 7, 1997	66 km NW of Peniche, Portugal	M3.9	78 km
Apr 3, 1995	4 km E of Tocha, Portugal	M3.9	119 km
Mar 9, 1990	116 km W of Ericeira, Portugal	M3.8	133 km
Jul 31, 1998	23 km W of Estremoz, Portugal	M3.8	129 km
Sep 20, 1999	0 km SW of Caxias, Portugal	M3.8	70 km
Apr 10, 2001	6 km SSE of Louriçal, Portugal	M3.7	83 km
Sep 4, 1997	24 km WNW of Sines, Portugal	M3.7	141 km
Mar 28, 2002	43 km W of Sines, Portugal	M3.7	150 km
Feb 1, 2017	4 km WSW of Porto de Mós, Portugal	M3.6	43 km
Apr 30, 1999	7 km WNW of Marinha Grande, Portugal	M3.6	53 km
Jan 6, 2007	36 km SSW of Cascais, Portugal	M3.6	108 km
Sep 4, 1996	4 km E of Santo Isidoro, Portugal	M3.6	38 km
Feb 18, 1990	2 km ENE of Abrigada, Portugal	M3.6	28 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	71 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	51°F (11°C)	3.7 in	Coldest
February	54°F (12°C)	3.0 in
March	56°F (13°C)	1.9 in
April	57°F (14°C)	2.3 in
May	61°F (16°C)	2.1 in
June	65°F (18°C)	0.8 in
July	68°F (20°C)	0.2 in	Driest
August	68°F (20°C)	0.3 in	Warmest
September	67°F (20°C)	1.0 in
October	63°F (17°C)	3.1 in
November	58°F (14°C)	3.7 in
December	54°F (12°C)	3.9 in	Wettest

Olho Marinho has a seasonal temperature swing of 18°F / from 51°F in January to 68°F in August. Total annual precipitation is 26.0 inches, with December being the wettest month (3.9") and July the driest (0.2").

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