Karasu, Turkey

Full City Profile

30,746 Population 194/sq mi density

20 ft Elevation 6 meters

55°F Avg Temperature 13°C

Karasu experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 41°F in January while summers reach 69°F in July. The area gets 272 sunny days per year. Annual precipitation totals 35.2 inches. The area receives 0.0 inches of snow annually.

Temperature

41°F Jan (5°C) 69°F Jul (21°C)

Annual Average	55.0°F
	2% above US avg
January Average	41°F (5°C)
July Average	69°F (21°C)
Sunny Days	272 days/yr

Geography

Elevation	20 ft (6 m)
Area	158.7 sq mi (411.0 km²)
Population Density	194/sq mi
Coordinates	41.1044°N, 30.6966°W
Timezone	Europe/Istanbul

Precipitation & Snow

Annual Rainfall 35.2"

7% below US avg

Snowfall 0.0"

Wettest Month (Dec) 4.69"

Driest Month (May) 1.97"

Air Quality

Earthquake History

1,381 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	80 km
Nov 12, 1999	8 km S of Düzce, Turkey	M7.2	55 km
Sep 13, 1999	4 km SE of Köseköy, Turkey	M5.9	70 km
Nov 11, 1999	5 km N of Sapanca, Turkey	M5.7	54 km
Nov 12, 1999	7 km SSW of Düzce, Turkey	M5.5	50 km
Aug 23, 2000	8 km E of Akyaz?, Turkey	M5.3	47 km
Aug 31, 1999	2 km NNE of Kar??yaka, Turkey	M5.2	77 km
Aug 19, 1999	3 km SSE of Ç?narc?k, Turkey	M5.2	142 km
Sep 29, 1999	8 km NNW of Ta?köprü, Turkey	M5.2	121 km
Nov 12, 1999	11 km W of Bolu, Turkey	M5.2	77 km
Nov 24, 2013	14 km WNW of Yeniça?a, Turkey	M5.1	103 km
Oct 15, 2016	117 km NNW of Ere?li, Turkey	M5.1	123 km
Nov 16, 1999	2 km S of Bolu, Turkey	M5.1	88 km
Aug 17, 1999	9 km SE of Akyaz?, Turkey	M5.1	54 km
Aug 26, 2001	24 km N of Bolu, Turkey	M5.0	76 km
Aug 17, 1999	2 km NW of Kullar, Turkey	M5.0	73 km
Sep 9, 1999	7 km NNW of Koruköy, Turkey	M5.0	137 km
Nov 7, 1999	8 km E of Akyaz?, Turkey	M5.0	46 km
Aug 17, 1999	9 km ESE of Köseköy, Turkey	M4.9	65 km
Feb 14, 2000	28 km SW of Devrek, Turkey	M4.9	89 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	72 km
1963	MARMARA SEA	Earthquake	1.0 m	1	137 km
986	MARMARA SEA	Earthquake	—	—	130 km
551	LEVANTIAN SEA	Earthquake	—	—	75 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	41°F (5°C)	3.9 in	Coldest
February	42°F (6°C)	2.9 in
March	45°F (7°C)	2.9 in
April	52°F (11°C)	2.3 in
May	59°F (15°C)	2.0 in	Driest
June	66°F (19°C)	2.1 in
July	69°F (21°C)	2.2 in	Warmest
August	69°F (21°C)	2.3 in
September	64°F (18°C)	2.4 in
October	58°F (14°C)	3.8 in
November	51°F (10°C)	3.8 in
December	45°F (7°C)	4.7 in	Wettest

Karasu has a seasonal temperature swing of 28°F / from 41°F in January to 69°F in July. Total annual precipitation is 35.2 inches, with December being the wettest month (4.7") and May the driest (2.0").

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