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Sapanca, Turkey

Full City Profile

25,224 Population 378/sq mi density
154 ft Elevation 47 meters
57°F Avg Temperature 14°C
Sapanca enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 42°F in January while summers reach 72°F in July. The area gets 282 sunny days per year. Annual precipitation totals 29.9 inches. The area receives 0.0 inches of snow annually.

Temperature

42°F Jan (6°C) 72°F Jul (22°C)
Annual Average56.9°F
5% above US avg
January Average42°F (6°C)
July Average72°F (22°C)
Sunny Days282 days/yr

Geography

Elevation154 ft (47 m)
Area66.8 sq mi (173.0 km²)
Population Density378/sq mi
Coordinates40.6914°N, 30.2674°W
TimezoneEurope/Istanbul

Precipitation & Snow

Annual Rainfall 29.9"
21% below US avg
Snowfall 0.0"
Wettest Month (Dec) 4.21"
Driest Month (Jul) 1.50"

Air Quality

Earthquake History

3,133 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.6. Most recent: M4.2 on Jul 2, 2025.

Aug 17, 1999 4 km ESE of Derince, Turkey M7.6 35 km
Nov 12, 1999 8 km S of Düzce, Turkey M7.2 76 km
Sep 13, 1999 4 km SE of Köseköy, Turkey M5.9 19 km
Nov 11, 1999 5 km N of Sapanca, Turkey M5.7 6 km
Nov 12, 1999 7 km SSW of Düzce, Turkey M5.5 73 km
Aug 23, 2000 8 km E of Akyaz?, Turkey M5.3 38 km
Sep 29, 1999 8 km NNW of Ta?köprü, Turkey M5.2 78 km
Nov 12, 1999 11 km W of Bolu, Turkey M5.2 102 km
Aug 19, 1999 3 km SSE of Ç?narc?k, Turkey M5.2 96 km
Aug 31, 1999 2 km NNE of Kar??yaka, Turkey M5.2 27 km
Nov 16, 1999 2 km S of Bolu, Turkey M5.1 113 km
Aug 17, 1999 9 km SE of Akyaz?, Turkey M5.1 37 km
Nov 24, 2013 14 km WNW of Yeniça?a, Turkey M5.1 136 km
Sep 9, 1999 7 km NNW of Koruköy, Turkey M5.0 95 km
Aug 26, 2001 24 km N of Bolu, Turkey M5.0 114 km
Nov 7, 1999 8 km E of Akyaz?, Turkey M5.0 39 km
Aug 17, 1999 2 km NW of Kullar, Turkey M5.0 26 km
Feb 14, 2000 28 km SW of Devrek, Turkey M4.9 130 km
Aug 17, 1999 11 km ESE of Akyaz?, Turkey M4.9 41 km
Aug 17, 1999 9 km ESE of Köseköy, Turkey M4.9 13 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

6 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).

Year Location Cause Max Wave Deaths Distance
1894 MARMARA SEA Earthquake 4.5 m 1,349 133 km
1999 KOCAELI, TURKEY Earthquake 2.5 m 17,118 26 km
1963 MARMARA SEA Earthquake 1.0 m 1 93 km
986 MARMARA SEA Earthquake 91 km
551 LEVANTIAN SEA Earthquake 33 km
478 MARMARA SEA Earthquake 91 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 42°F (6°C) 3.4 in Coldest
February 43°F (6°C) 2.7 in
March 46°F (8°C) 2.6 in
April 54°F (12°C) 2.2 in
May 62°F (17°C) 1.9 in
June 69°F (20°C) 1.9 in
July 72°F (22°C) 1.5 in Warmest, Driest
August 72°F (22°C) 1.7 in
September 67°F (19°C) 1.9 in
October 59°F (15°C) 3.0 in
November 52°F (11°C) 3.1 in
December 45°F (7°C) 4.2 in Wettest

Sapanca has a seasonal temperature swing of 30°F / from 42°F in January to 72°F in July. Total annual precipitation is 29.9 inches, with December being the wettest month (4.2") and July the driest (1.5").

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