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Weather & Climate in Keşan, Turkey
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Keşan enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 41°F in January while summers reach 74°F in July. The area gets 290 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 25.2 inches (drier than the 38-inch national average). The city sits at an elevation of 344 feet.
Temperature
41°F Jan (5°C)
74°F Jul (23°C)
| Annual Average | 57.1°F |
| 6% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 290 days/yr |
Geography
| Elevation | 344 ft (105 m) |
| Area | 9.0 sq mi (23.3 km²) |
| Population Density | 4,971/sq mi |
| Coordinates | 40.8553°N, 26.6327°W |
| Timezone | Europe/Istanbul |
Precipitation & Snow
Air Quality
Earthquake History
1,648 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| May 24, 2014 | 21 km SSW of Kamariótissa, Greece | M6.9 | 123 km | 6 km |
| Apr 23, 2025 | 24 km SE of Marmara Ereğlisi, Turkey | M6.2 | 131 km | 13 km |
| Jul 6, 2003 | 28 km NNE of Gökçeada, Turkey | M5.7 | 69 km | 17 km |
| Sep 26, 2019 | 17 km ESE of Marmara Ere?lisi, Turkey | M5.7 | 128 km | 8 km |
| Feb 12, 2017 | 24 km WNW of Behram, Turkey | M5.3 | 147 km | 6 km |
| Feb 6, 2017 | 25 km WNW of Behram, Turkey | M5.3 | 148 km | 10 km |
| Jul 6, 2003 | 30 km NE of Gökçeada, Turkey | M5.3 | 64 km | 17 km |
| Jun 15, 2004 | 26 km N of Gökçeada, Turkey | M5.2 | 79 km | 12 km |
| Feb 20, 2019 | 10 km N of Ayvac?k, Turkey | M5.1 | 131 km | 10 km |
| Jul 25, 2011 | 25 km SW of Marmara Ere?lisi, Turkey | M5.1 | 94 km | 16 km |
| Jan 11, 2020 | 16 km S of Silivri, Turkey | M4.9 | 135 km | 10 km |
| Apr 23, 2025 | 24 km SSW of Selimpaşa, Turkey | M4.9 | 138 km | 10 km |
| Sep 24, 2019 | 20 km SE of Marmara Ere?lisi, Turkey | M4.9 | 127 km | 10 km |
| Jun 7, 2012 | 13 km SSW of Marmara Ere?lisi, Turkey | M4.9 | 108 km | 15 km |
| May 25, 2014 | Western Turkey | M4.9 | 63 km | 13 km |
| Oct 12, 1991 | 22 km W of Gökçeada, Turkey | M4.8 | 111 km | 12 km |
| Jul 9, 2003 | 17 km N of Gökçeada, Turkey | M4.8 | 81 km | 18 km |
| Sep 20, 1999 | 7 km NNE of Marmara, Turkey | M4.8 | 84 km | 10 km |
| Jul 24, 2015 | 13 km NW of Eceabat, Turkey | M4.8 | 71 km | 10 km |
| Sep 9, 1999 | 10 km NW of Gökçeada, Turkey | M4.8 | 96 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
11 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 | 124 km |
| 1912 | MARMARA SEA | Eruption + Earthquake | 2.7 m | 2,800 | 43 km |
| 1893 | SAMOTHRACE | Earthquake | 1.0 m | 1 | 103 km |
| 2014 | NORTH AEGEAN SEA | Earthquake | 0.2 m | 3 | 123 km |
| 2025 | MARMARA SEA | Earthquake | 0.1 m | — | 127 km |
| 1944 | EDREMIT GULF, AEGEAN SEA | Earthquake | — | 30 | 150 km |
| 1935 | MARMARA SEA | Eruption + Earthquake | — | 5 | 74 km |
| 1343 | MARMARA SEA, STRAIT OF BOSPORUS | Earthquake | — | — | 140 km |
| 1265 | MARMARA SEA | Earthquake | — | — | 67 km |
| 557 | MARMARA SEA | Earthquake | — | — | 82 km |
| 543 | BLACK SEA | Earthquake | — | — | 116 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.9 in | |
| February | 41°F (5°C) | 2.7 in | Coldest |
| March | 46°F (8°C) | 2.6 in | |
| April | 53°F (12°C) | 2.0 in | |
| May | 61°F (16°C) | 1.5 in | |
| June | 69°F (21°C) | 1.4 in | |
| July | 74°F (23°C) | 0.8 in | |
| August | 74°F (23°C) | 0.6 in | Warmest, Driest |
| September | 68°F (20°C) | 1.3 in | |
| October | 61°F (16°C) | 2.3 in | |
| November | 52°F (11°C) | 3.3 in | |
| December | 45°F (7°C) | 3.9 in | Wettest |
Keşan has a seasonal temperature swing of 33°F / from 41°F in February to 74°F in August. Total annual precipitation is 25.3 inches, with December being the wettest month (3.9") and August the driest (0.6").