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Koilás, Greece

Full City Profile

2.6 /5.0
C+ Fair
1,165 Population 74/sq mi density
20 ft Elevation 6 meters
62°F Avg Temperature 17°C
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.6 / 5.0
$20,196 median income, unemployment
Koilás enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 48°F in January while summers reach 79°F in July. The area gets 298 sunny days per year. Annual precipitation totals 21.1 inches. The area receives 0.0 inches of snow annually.

Temperature

48°F Jan (9°C) 79°F Jul (26°C)
Annual Average62.3°F
15% above US avg
January Average48°F (9°C)
July Average79°F (26°C)
Sunny Days298 days/yr

Geography

Elevation20 ft (6 m)
Area15.7 sq mi (40.6 km²)
Population Density74/sq mi
Coordinates37.4123°N, 23.1255°W
TimezoneEurope/Athens

Precipitation & Snow

Annual Rainfall 21.1"
45% below US avg
Snowfall 0.0"
Wettest Month (Dec) 3.62"
Driest Month (Jul) 0.31"

Air Quality

Earthquake History

4,320 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.7. Most recent: M4.1 on Aug 15, 2025.

Jan 8, 2006 26 km NE of Kýthira, Greece M6.7 123 km
Jun 15, 1995 8 km WNW of Galaxídhion, Greece M6.5 133 km
Oct 13, 1997 47 km SSE of Koróni, Greece M6.4 148 km
Jan 6, 2008 15 km WNW of Leonídio, Greece M6.2 44 km
Sep 7, 1999 5 km WNW of Fylí, Greece M6.0 89 km
Nov 18, 1992 10 km SE of Galaxídhion, Greece M5.9 116 km
May 21, 2002 18 km SW of Adámas, Greece M5.9 134 km
Aug 29, 2014 59 km E of Géfyra, Greece M5.8 96 km
Mar 18, 1993 11 km NNE of Témeni, Greece M5.8 134 km
Mar 1, 2004 6 km ESE of Arfará, Greece M5.6 95 km
Apr 4, 2014 36 km ESE of Ýdra, Greece M5.6 67 km
Nov 5, 1997 10 km NW of Galaxídhion, Greece M5.6 136 km
Feb 17, 2021 11 km N of Kamárai, Greece M5.5 147 km
Sep 16, 2001 6 km SE of Kopanáki, Greece M5.5 112 km
May 10, 2008 58 km SSW of Gýtheio, Greece M5.4 147 km
Jan 22, 2010 14 km NNE of Kamárai, Greece M5.4 147 km
Jun 15, 1995 3 km E of Galaxídhion, Greece M5.4 124 km
Feb 15, 2016 14 km E of Kréstena, Greece M5.3 120 km
Mar 30, 2019 2 km SE of Galaxídhion, Greece M5.3 124 km
Nov 4, 1993 8 km N of Kamárai, Greece M5.3 145 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

20 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).

Year Location Cause Max Wave Deaths Distance
1963 CORINTH GULF Meteorological 6.0 m 2 139 km
1867 PELOPONNESUS, GREECE Earthquake 6.0 m 139 km
1817 CORINTHOS-PATRAS GULF Earthquake 5.0 m 134 km
1965 NORTH CORINTH GULF Eruption + Earthquake 3.0 m 2 120 km
1894 NORTH EVOIKOS GULF Eruption + Earthquake 3.0 m 143 km
1861 CORINTH GULF Eruption + Earthquake 2.1 m 120 km
2008 SW. CORINTH GULF Unknown 2.0 m 120 km
1996 W. CORINTH GULF Meteorological 2.0 m 140 km
1981 GULF OF CORINTH Earthquake 1.3 m 90 km
1995 GULF OF CORINTH: AIYION Eruption + Earthquake 1.0 m 26 133 km
1981 ATHENS-EASTERN GULF OF CORINTH Earthquake 1.0 m 22 92 km
1947 PELOPONNESUS, GREECE Eruption + Earthquake 1.0 m 3 127 km
1899 IONIAN SEA Earthquake 1.0 m 123 km
1928 CORINTHOS-PATRAS GULF Earthquake 0.6 m 20 66 km
1992 CORINTH GULF Earthquake 116 km
1984 CORINTHOS GULF, GREECE Eruption + Earthquake 134 km
1926 ARGOLIKOS GULF Earthquake 103 km
1888 GULF OF CORINTH Eruption + Earthquake 126 km
1886 IONIAN SEA Earthquake 326 131 km
1862 IONIAN SEA Earthquake 121 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Methana (29 km).

Name Type Elevation Last Eruption Distance
Methana Lava dome(s) 760 m (2,493 ft) -258 29 km
Milos Stratovolcano(es) 751 m (2,464 ft) 140 141 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 48°F (9°C) 2.8 in Coldest
February 49°F (9°C) 2.6 in
March 51°F (11°C) 2.3 in
April 58°F (14°C) 1.5 in
May 66°F (19°C) 0.8 in
June 74°F (24°C) 0.4 in
July 79°F (26°C) 0.3 in Warmest, Driest
August 78°F (26°C) 0.4 in
September 73°F (23°C) 0.6 in
October 64°F (18°C) 2.3 in
November 57°F (14°C) 3.4 in
December 51°F (11°C) 3.6 in Wettest

Koilás has a seasonal temperature swing of 30°F / from 48°F in January to 79°F in July. Total annual precipitation is 21.1 inches, with December being the wettest month (3.6") and July the driest (0.3").

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