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Orhaniye, Turkey

Full City Profile

955 Population 3/sq mi density
548 ft Elevation 167 meters
56°F Avg Temperature 13°C
Orhaniye enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 40°F in January while summers reach 72°F in July. The area gets 290 sunny days per year. Annual precipitation totals 25.4 inches. The area receives 0.0 inches of snow annually.

Temperature

40°F Jan (4°C) 72°F Jul (22°C)
Annual Average55.5°F
3% above US avg
January Average40°F (4°C)
July Average72°F (22°C)
Sunny Days290 days/yr

Geography

Elevation548 ft (167 m)
Area290.7 sq mi (753.0 km²)
Population Density3/sq mi
Coordinates40.5061°N, 29.6597°W
TimezoneEurope/Istanbul

Precipitation & Snow

Annual Rainfall 25.4"
33% below US avg
Snowfall 0.0"
Wettest Month (Dec) 3.31"
Driest Month (Jul) 1.02"

Air Quality

Earthquake History

3,937 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.6. Most recent: M3.8 on Jul 5, 2025.

Aug 17, 1999 4 km ESE of Derince, Turkey M7.6 32 km
Nov 12, 1999 8 km S of Düzce, Turkey M7.2 130 km
Apr 23, 2025 24 km SE of Marmara Ereğlisi, Turkey M6.2 129 km
Sep 13, 1999 4 km SE of Köseköy, Turkey M5.9 40 km
Nov 11, 1999 5 km N of Sapanca, Turkey M5.7 58 km
Sep 26, 2019 17 km ESE of Marmara Ere?lisi, Turkey M5.7 135 km
Nov 12, 1999 7 km SSW of Düzce, Turkey M5.5 127 km
Aug 23, 2000 8 km E of Akyaz?, Turkey M5.3 92 km
Aug 19, 1999 3 km SSE of Ç?narc?k, Turkey M5.2 46 km
Sep 29, 1999 8 km NNW of Ta?köprü, Turkey M5.2 37 km
Aug 31, 1999 2 km NNE of Kar??yaka, Turkey M5.2 33 km
Aug 17, 1999 9 km SE of Akyaz?, Turkey M5.1 88 km
Nov 7, 1999 8 km E of Akyaz?, Turkey M5.0 92 km
Apr 23, 2025 14 km S of Kumburgaz, Turkey M5.0 108 km
Aug 17, 1999 2 km NW of Kullar, Turkey M5.0 37 km
Sep 9, 1999 7 km NNW of Koruköy, Turkey M5.0 50 km
Aug 17, 1999 11 km ESE of Akyaz?, Turkey M4.9 94 km
Apr 23, 2025 24 km SSW of Selimpaşa, Turkey M4.9 123 km
Sep 24, 2019 20 km SE of Marmara Ere?lisi, Turkey M4.9 134 km
Aug 17, 1999 9 km ESE of Köseköy, Turkey M4.9 45 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

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

Year Location Cause Max Wave Deaths Distance
1509 MARMARA SEA Earthquake 6.0 m 5,000 136 km
1894 MARMARA SEA Earthquake 4.5 m 1,349 82 km
1999 KOCAELI, TURKEY Earthquake 2.5 m 17,118 39 km
1963 MARMARA SEA Earthquake 1.0 m 1 47 km
2025 MARMARA SEA Earthquake 0.1 m 133 km
1343 MARMARA SEA, STRAIT OF BOSPORUS Earthquake 119 km
986 MARMARA SEA Earthquake 51 km
551 LEVANTIAN SEA Earthquake 39 km
478 MARMARA SEA Earthquake 51 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 40°F (4°C) 3.2 in Coldest
February 41°F (5°C) 2.4 in
March 44°F (7°C) 2.3 in
April 52°F (11°C) 1.9 in
May 60°F (16°C) 1.8 in
June 68°F (20°C) 1.4 in
July 72°F (22°C) 1.0 in Driest
August 72°F (22°C) 1.1 in Warmest
September 66°F (19°C) 1.6 in
October 58°F (14°C) 2.6 in
November 50°F (10°C) 2.8 in
December 44°F (6°C) 3.3 in Wettest

Orhaniye has a seasonal temperature swing of 32°F / from 40°F in January to 72°F in August. Total annual precipitation is 25.4 inches, with December being the wettest month (3.3") and July the driest (1.0").

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