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Weather & Climate in Kartepe, Turkey
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kartepe enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 46°F in January while summers reach 73°F in July. The area gets 263 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 50.2 inches (wetter than the 38-inch national average). The area receives 11.6 inches of snow annually. The city sits at an elevation of 52 feet.
Temperature
46°F Jan (8°C)
73°F Jul (23°C)
| Annual Average | 57.3°F |
| 6% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 263 days/yr |
Geography
| Elevation | 52 ft (16 m) |
| Area | 2.1 sq mi (5.3 km²) |
| Population Density | 0/sq mi |
| Coordinates | 40.7522°N, 30.0235°W |
| Timezone | Europe/Istanbul |
Precipitation & Snow
Air Quality
Earthquake History
3,323 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.6.
| Aug 17, 1999 | 4 km ESE of Derince, Turkey | M7.6 | 13 km | 17 km |
| Nov 12, 1999 | 8 km S of Düzce, Turkey | M7.2 | 96 km | 10 km |
| Sep 13, 1999 | 4 km SE of Köseköy, Turkey | M5.9 | 5 km | 13 km |
| Nov 11, 1999 | 5 km N of Sapanca, Turkey | M5.7 | 20 km | 22 km |
| Nov 12, 1999 | 7 km SSW of Düzce, Turkey | M5.5 | 92 km | 10 km |
| Aug 23, 2000 | 8 km E of Akyaz?, Turkey | M5.3 | 59 km | 15 km |
| Sep 29, 1999 | 8 km NNW of Ta?köprü, Turkey | M5.2 | 57 km | 10 km |
| Aug 31, 1999 | 2 km NNE of Kar??yaka, Turkey | M5.2 | 8 km | 10 km |
| Aug 19, 1999 | 3 km SSE of Ç?narc?k, Turkey | M5.2 | 76 km | 10 km |
| Nov 12, 1999 | 11 km W of Bolu, Turkey | M5.2 | 122 km | 10 km |
| Nov 16, 1999 | 2 km S of Bolu, Turkey | M5.1 | 134 km | 10 km |
| Aug 17, 1999 | 9 km SE of Akyaz?, Turkey | M5.1 | 58 km | 10 km |
| Aug 26, 2001 | 24 km N of Bolu, Turkey | M5.0 | 132 km | 8 km |
| Sep 9, 1999 | 7 km NNW of Koruköy, Turkey | M5.0 | 74 km | 13 km |
| Nov 7, 1999 | 8 km E of Akyaz?, Turkey | M5.0 | 60 km | 10 km |
| Aug 17, 1999 | 2 km NW of Kullar, Turkey | M5.0 | 5 km | 10 km |
| Apr 23, 2025 | 14 km S of Kumburgaz, Turkey | M5.0 | 131 km | 10 km |
| Aug 17, 1999 | 11 km ESE of Akyaz?, Turkey | M4.9 | 62 km | 10 km |
| Aug 17, 1999 | 9 km ESE of Köseköy, Turkey | M4.9 | 9 km | 10 km |
| Apr 23, 2025 | 24 km SSW of Selimpaşa, Turkey | M4.9 | 148 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
7 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 | 113 km |
| 1999 | KOCAELI, TURKEY | Earthquake | 2.5 m | 17,118 | 5 km |
| 1963 | MARMARA SEA | Earthquake | 1.0 m | 1 | 73 km |
| 1343 | MARMARA SEA, STRAIT OF BOSPORUS | Earthquake | — | — | 145 km |
| 986 | MARMARA SEA | Earthquake | — | — | 70 km |
| 551 | LEVANTIAN SEA | Earthquake | — | — | 12 km |
| 478 | MARMARA SEA | Earthquake | — | — | 70 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 3.4 in | |
| February | 43°F (6°C) | 2.6 in | Coldest |
| March | 46°F (8°C) | 2.5 in | |
| April | 54°F (12°C) | 2.1 in | |
| May | 62°F (17°C) | 1.9 in | |
| June | 70°F (21°C) | 1.8 in | |
| July | 73°F (23°C) | 1.3 in | Driest |
| August | 73°F (23°C) | 1.6 in | Warmest |
| September | 67°F (20°C) | 2.0 in | |
| October | 60°F (15°C) | 3.2 in | |
| November | 52°F (11°C) | 3.1 in | |
| December | 46°F (8°C) | 4.2 in | Wettest |
Kartepe has a seasonal temperature swing of 30°F / from 43°F in February to 73°F in August. Total annual precipitation is 29.7 inches, with December being the wettest month (4.2") and July the driest (1.3").