All Countries
Weather & Climate in Dereköy, Turkey
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Dereköy experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 37°F in January while summers reach 73°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 24.2 inches (drier than the 38-inch national average). The area receives 2.9 inches of snow annually. The city sits at an elevation of 1,608 feet.
Temperature
37°F Jan (3°C)
73°F Jul (23°C)
| Annual Average | 54.6°F |
| 1% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 1,608 ft (490 m) |
| Area | 0.3 sq mi (0.8 km²) |
| Population Density | 2,132/sq mi |
| Coordinates | 41.9301°N, 27.3705°W |
| Timezone | Europe/Istanbul |
Precipitation & Snow
Air Quality
Earthquake History
655 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 | 140 km | 13 km |
| Sep 26, 2019 | 17 km ESE of Marmara Ere?lisi, Turkey | M5.7 | 131 km | 8 km |
| Jul 25, 2011 | 25 km SW of Marmara Ere?lisi, Turkey | M5.1 | 129 km | 16 km |
| Apr 23, 2025 | 14 km S of Kumburgaz, Turkey | M5.0 | 148 km | 10 km |
| Apr 23, 2025 | 24 km SSW of Selimpaşa, Turkey | M4.9 | 142 km | 10 km |
| Jun 7, 2012 | 13 km SSW of Marmara Ere?lisi, Turkey | M4.9 | 129 km | 15 km |
| Jan 11, 2020 | 16 km S of Silivri, Turkey | M4.9 | 133 km | 10 km |
| Sep 24, 2019 | 20 km SE of Marmara Ere?lisi, Turkey | M4.9 | 136 km | 10 km |
| Dec 12, 1993 | 26 km NNE of Durusu, Turkey | M4.8 | 129 km | 28 km |
| Sep 20, 1999 | 7 km NNE of Marmara, Turkey | M4.8 | 144 km | 10 km |
| Apr 13, 1995 | 18 km E of Kumba?, Turkey | M4.7 | 122 km | 24 km |
| Jan 24, 2009 | Western Turkey | M4.6 | 131 km | 11 km |
| Apr 4, 2022 | 14 km SE of Provadia, Bulgaria | M4.6 | 130 km | 10 km |
| Aug 13, 2001 | 13 km N of Yambol, Bulgaria | M4.6 | 103 km | 10 km |
| Sep 26, 2019 | 22 km SE of Marmara Ere?lisi, Turkey | M4.5 | 138 km | 10 km |
| Apr 18, 1995 | 21 km E of Kumba?, Turkey | M4.5 | 123 km | 10 km |
| Nov 27, 2013 | 13 km SSW of Marmara Ere?lisi, Turkey | M4.5 | 128 km | 10 km |
| Feb 8, 1995 | 22 km SW of Marmara Ere?lisi, Turkey | M4.5 | 128 km | 23 km |
| Apr 23, 2025 | 25 km S of Silivri, Turkey | M4.5 | 140 km | 10 km |
| Mar 8, 1991 | 16 km SSW of Marmara Ere?lisi, Turkey | M4.5 | 130 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
7 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 | 140 km |
| 1912 | MARMARA SEA | Eruption + Earthquake | 2.7 m | 2,800 | 135 km |
| 2025 | MARMARA SEA | Earthquake | 0.1 m | — | 137 km |
| 1935 | MARMARA SEA | Eruption + Earthquake | — | 5 | 146 km |
| 1343 | MARMARA SEA, STRAIT OF BOSPORUS | Earthquake | — | — | 148 km |
| 1265 | MARMARA SEA | Earthquake | — | — | 137 km |
| 557 | MARMARA SEA | Earthquake | — | — | 116 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 2.4 in | Coldest |
| February | 39°F (4°C) | 2.1 in | |
| March | 43°F (6°C) | 2.1 in | |
| April | 52°F (11°C) | 2.1 in | |
| May | 60°F (16°C) | 2.0 in | |
| June | 68°F (20°C) | 2.0 in | |
| July | 73°F (23°C) | 1.1 in | Warmest, Driest |
| August | 72°F (22°C) | 1.1 in | |
| September | 65°F (19°C) | 1.3 in | |
| October | 56°F (13°C) | 2.1 in | |
| November | 47°F (9°C) | 2.8 in | Wettest |
| December | 40°F (5°C) | 2.8 in |
Dereköy has a seasonal temperature swing of 36°F / from 37°F in January to 73°F in July. Total annual precipitation is 23.9 inches, with November being the wettest month (2.8") and July the driest (1.1").