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Osmaneli, Turkey

Full City Profile

15,708 Population 58/sq mi density
374 ft Elevation 114 meters
56°F Avg Temperature 14°C
Osmaneli enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 39°F in January while summers reach 73°F in July. The area gets 294 sunny days per year. Annual precipitation totals 23.1 inches. The area receives 0.0 inches of snow annually.

Temperature

39°F Jan (4°C) 73°F Jul (23°C)
Annual Average56.4°F
4% above US avg
January Average39°F (4°C)
July Average73°F (23°C)
Sunny Days294 days/yr

Geography

Elevation374 ft (114 m)
Area271.7 sq mi (703.6 km²)
Population Density58/sq mi
Coordinates40.3572°N, 30.0142°W
TimezoneEurope/Istanbul

Precipitation & Snow

Annual Rainfall 23.1"
39% below US avg
Snowfall 0.0"
Wettest Month (Dec) 3.11"
Driest Month (Aug) 1.02"

Air Quality

Earthquake History

3,688 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 45 km
Nov 12, 1999 8 km S of Düzce, Turkey M7.2 107 km
Sep 13, 1999 4 km SE of Köseköy, Turkey M5.9 39 km
Nov 11, 1999 5 km N of Sapanca, Turkey M5.7 48 km
Nov 12, 1999 7 km SSW of Düzce, Turkey M5.5 105 km
Aug 23, 2000 8 km E of Akyaz?, Turkey M5.3 70 km
Aug 19, 1999 3 km SSE of Ç?narc?k, Turkey M5.2 80 km
Aug 31, 1999 2 km NNE of Kar??yaka, Turkey M5.2 40 km
Nov 12, 1999 11 km W of Bolu, Turkey M5.2 130 km
Sep 29, 1999 8 km NNW of Ta?köprü, Turkey M5.2 71 km
Aug 31, 2021 19 km W of ?hsaniye, Turkey M5.1 147 km
Nov 16, 1999 2 km S of Bolu, Turkey M5.1 141 km
Aug 17, 1999 9 km SE of Akyaz?, Turkey M5.1 64 km
Nov 7, 1999 8 km E of Akyaz?, Turkey M5.0 71 km
Aug 17, 1999 2 km NW of Kullar, Turkey M5.0 43 km
Apr 23, 2025 14 km S of Kumburgaz, Turkey M5.0 142 km
Sep 9, 1999 7 km NNW of Koruköy, Turkey M5.0 84 km
Aug 26, 2001 24 km N of Bolu, Turkey M5.0 147 km
Aug 17, 1999 9 km ESE of Köseköy, Turkey M4.9 41 km
Aug 17, 1999 11 km ESE of Akyaz?, Turkey M4.9 70 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 1,349 114 km
1999 KOCAELI, TURKEY Earthquake 2.5 m 17,118 45 km
1963 MARMARA SEA Earthquake 1.0 m 1 82 km
986 MARMARA SEA Earthquake 85 km
551 LEVANTIAN SEA Earthquake 50 km
478 MARMARA SEA Earthquake 85 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 39°F (4°C) 2.7 in Coldest
February 41°F (5°C) 2.2 in
March 46°F (8°C) 2.1 in
April 54°F (12°C) 1.9 in
May 62°F (17°C) 1.8 in
June 69°F (21°C) 1.6 in
July 73°F (23°C) 1.1 in Warmest
August 73°F (23°C) 1.0 in Driest
September 67°F (19°C) 1.3 in
October 58°F (15°C) 2.1 in
November 50°F (10°C) 2.3 in
December 43°F (6°C) 3.1 in Wettest

Osmaneli has a seasonal temperature swing of 34°F / from 39°F in January to 73°F in July. Total annual precipitation is 23.1 inches, with December being the wettest month (3.1") and August the driest (1.0").

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