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Weather & Climate in Sultanköy, Turkey
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sultanköy enjoys a temperate climate with an average annual temperature of 56°F (14°C). Winters average 40°F in January while summers reach 74°F in July. The area gets 293 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 23.9 inches (drier than the 38-inch national average). The city sits at an elevation of 89 feet.
Temperature
40°F Jan (5°C)
74°F Jul (23°C)
| Annual Average | 56.4°F |
| 4% above US avg | |
| January Average | 40°F (5°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 89 ft (27 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 10,030/sq mi |
| Coordinates | 41.0214°N, 27.9886°W |
| Timezone | Europe/Istanbul |
Precipitation & Snow
Air Quality
Earthquake History
2,202 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.2.
| Apr 23, 2025 | 24 km SE of Marmara Ereğlisi, Turkey | M6.2 | 27 km | 13 km |
| Sep 26, 2019 | 17 km ESE of Marmara Ere?lisi, Turkey | M5.7 | 19 km | 8 km |
| Sep 29, 1999 | 8 km NNW of Ta?köprü, Turkey | M5.2 | 118 km | 10 km |
| Aug 19, 1999 | 3 km SSE of Ç?narc?k, Turkey | M5.2 | 107 km | 10 km |
| Jul 25, 2011 | 25 km SW of Marmara Ere?lisi, Turkey | M5.1 | 32 km | 16 km |
| Apr 23, 2025 | 14 km S of Kumburgaz, Turkey | M5.0 | 44 km | 10 km |
| Sep 9, 1999 | 7 km NNW of Koruköy, Turkey | M5.0 | 103 km | 13 km |
| Jan 11, 2020 | 16 km S of Silivri, Turkey | M4.9 | 23 km | 10 km |
| Jun 7, 2012 | 13 km SSW of Marmara Ere?lisi, Turkey | M4.9 | 20 km | 15 km |
| Apr 23, 2025 | 24 km SSW of Selimpaşa, Turkey | M4.9 | 31 km | 10 km |
| Sep 24, 2019 | 20 km SE of Marmara Ere?lisi, Turkey | M4.9 | 23 km | 10 km |
| Sep 20, 1999 | 7 km NNE of Marmara, Turkey | M4.8 | 54 km | 10 km |
| Mar 22, 1992 | 3 km SSW of Karacabey, Turkey | M4.8 | 98 km | 19 km |
| Dec 12, 1993 | 26 km NNE of Durusu, Turkey | M4.8 | 89 km | 28 km |
| Feb 12, 1991 | 18 km SW of K?nal?, Turkey | M4.8 | 78 km | 10 km |
| Apr 13, 1995 | 18 km E of Kumba?, Turkey | M4.7 | 32 km | 24 km |
| Oct 20, 1999 | 11 km SSW of Adalar, Turkey | M4.6 | 97 km | 10 km |
| Jul 3, 2014 | 16 km SSW of Band?rma, Turkey | M4.6 | 91 km | 12 km |
| Jan 24, 2009 | Western Turkey | M4.6 | 30 km | 11 km |
| Aug 17, 1999 | 0 km WNW of Ç?narc?k, Turkey | M4.6 | 104 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
12 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 | 26 km |
| 1894 | MARMARA SEA | Earthquake | 4.5 m | 1,349 | 76 km |
| 1912 | MARMARA SEA | Eruption + Earthquake | 2.7 m | 2,800 | 80 km |
| 1963 | MARMARA SEA | Earthquake | 1.0 m | 1 | 105 km |
| 2025 | MARMARA SEA | Earthquake | 0.1 m | — | 24 km |
| 1935 | MARMARA SEA | Eruption + Earthquake | — | 5 | 64 km |
| 1343 | MARMARA SEA, STRAIT OF BOSPORUS | Earthquake | — | — | 36 km |
| 1265 | MARMARA SEA | Earthquake | — | — | 61 km |
| 986 | MARMARA SEA | Earthquake | — | — | 105 km |
| 557 | MARMARA SEA | Earthquake | — | — | 35 km |
| 543 | BLACK SEA | Earthquake | — | — | 82 km |
| 478 | MARMARA SEA | Earthquake | — | — | 105 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 3.0 in | Coldest |
| February | 41°F (5°C) | 2.2 in | |
| March | 44°F (7°C) | 2.2 in | |
| April | 53°F (12°C) | 1.8 in | |
| May | 61°F (16°C) | 1.6 in | |
| June | 69°F (21°C) | 1.4 in | |
| July | 74°F (23°C) | 0.9 in | Warmest |
| August | 74°F (23°C) | 0.8 in | Driest |
| September | 68°F (20°C) | 1.4 in | |
| October | 59°F (15°C) | 2.1 in | |
| November | 51°F (10°C) | 3.1 in | |
| December | 44°F (7°C) | 3.6 in | Wettest |
Sultanköy has a seasonal temperature swing of 33°F / from 40°F in January to 74°F in July. Total annual precipitation is 23.9 inches, with December being the wettest month (3.6") and August the driest (0.8").