Hendek, Turkey

Full City Profile

35,257 Population 117,523/sq mi density

607 ft Elevation 185 meters

55°F Avg Temperature 13°C

Hendek experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 39°F in January while summers reach 69°F in July. The area gets 281 sunny days per year. Annual precipitation totals 30.2 inches. The area receives 0.0 inches of snow annually.

Temperature

39°F Jan (4°C) 69°F Jul (21°C)

Annual Average	54.6°F
	1% above US avg
January Average	39°F (4°C)
July Average	69°F (21°C)
Sunny Days	281 days/yr

Geography

Elevation	607 ft (185 m)
Area	0.3 sq mi (0.8 km²)
Population Density	117,523/sq mi
Coordinates	40.7994°N, 30.7481°W
Timezone	Europe/Istanbul

Precipitation & Snow

Annual Rainfall 30.2"

21% below US avg

Snowfall 0.0"

Wettest Month (Dec) 3.94"

Driest Month (Aug) 1.73"

Air Quality

Earthquake History

1,564 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	75 km
Nov 12, 1999	8 km S of Düzce, Turkey	M7.2	35 km
Sep 13, 1999	4 km SE of Köseköy, Turkey	M5.9	60 km
Nov 11, 1999	5 km N of Sapanca, Turkey	M5.7	41 km
Nov 12, 1999	7 km SSW of Düzce, Turkey	M5.5	31 km
Aug 23, 2000	8 km E of Akyaz?, Turkey	M5.3	14 km
Aug 19, 1999	3 km SSE of Ç?narc?k, Turkey	M5.2	137 km
Sep 29, 1999	8 km NNW of Ta?köprü, Turkey	M5.2	118 km
Nov 12, 1999	11 km W of Bolu, Turkey	M5.2	61 km
Aug 31, 1999	2 km NNE of Kar??yaka, Turkey	M5.2	68 km
Nov 16, 1999	2 km S of Bolu, Turkey	M5.1	73 km
Aug 17, 1999	9 km SE of Akyaz?, Turkey	M5.1	21 km
Nov 24, 2013	14 km WNW of Yeniça?a, Turkey	M5.1	94 km
Nov 7, 1999	8 km E of Akyaz?, Turkey	M5.0	12 km
Sep 9, 1999	7 km NNW of Koruköy, Turkey	M5.0	135 km
Aug 17, 1999	2 km NW of Kullar, Turkey	M5.0	66 km
Aug 26, 2001	24 km N of Bolu, Turkey	M5.0	71 km
Feb 14, 2000	28 km SW of Devrek, Turkey	M4.9	88 km
Aug 17, 1999	11 km ESE of Akyaz?, Turkey	M4.9	17 km
Aug 17, 1999	9 km ESE of Köseköy, Turkey	M4.9	54 km

Source: USGS (M2.5+, 1990–2025)

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 2.5 m (8 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1999	KOCAELI, TURKEY	Earthquake	2.5 m	17,118	66 km
1963	MARMARA SEA	Earthquake	1.0 m	1	134 km
986	MARMARA SEA	Earthquake	—	—	130 km
551	LEVANTIAN SEA	Earthquake	—	—	71 km
478	MARMARA SEA	Earthquake	—	—	130 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	39°F (4°C)	3.3 in	Coldest
February	41°F (5°C)	2.5 in
March	45°F (7°C)	2.6 in
April	52°F (11°C)	2.2 in
May	59°F (15°C)	2.1 in
June	66°F (19°C)	2.1 in
July	69°F (21°C)	1.8 in	Warmest
August	69°F (21°C)	1.7 in	Driest
September	64°F (18°C)	1.9 in
October	57°F (14°C)	2.9 in
November	49°F (10°C)	3.0 in
December	43°F (6°C)	3.9 in	Wettest

Hendek has a seasonal temperature swing of 30°F / from 39°F in January to 69°F in July. Total annual precipitation is 30.2 inches, with December being the wettest month (3.9") and August the driest (1.7").

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