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Weather & Climate in Göynük, Turkey
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Göynük experiences four distinct seasons with an average annual temperature of 49°F (10°C). Winters average 32°F in January while summers reach 66°F in July. The area gets 297 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 21.7 inches (drier than the 38-inch national average). The area receives 4.3 inches of snow annually. The city sits at an elevation of 2,444 feet.
Temperature
32°F Jan (-0°C)
66°F Jul (19°C)
| Annual Average | 49.4°F |
| 9% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 2,444 ft (745 m) |
| Area | 0.0 sq mi (0.1 km²) |
| Population Density | 186,667/sq mi |
| Coordinates | 40.4003°N, 30.7883°W |
| Timezone | Europe/Istanbul |
Precipitation & Snow
Air Quality
Earthquake History
2,602 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 | 87 km | 17 km |
| Nov 12, 1999 | 8 km S of Düzce, Turkey | M7.2 | 51 km | 10 km |
| Sep 13, 1999 | 4 km SE of Köseköy, Turkey | M5.9 | 72 km | 13 km |
| Nov 11, 1999 | 5 km N of Sapanca, Turkey | M5.7 | 58 km | 22 km |
| Nov 12, 1999 | 7 km SSW of Düzce, Turkey | M5.5 | 51 km | 10 km |
| Aug 23, 2000 | 8 km E of Akyaz?, Turkey | M5.3 | 32 km | 15 km |
| Nov 12, 1999 | 11 km W of Bolu, Turkey | M5.2 | 69 km | 10 km |
| Aug 31, 1999 | 2 km NNE of Kar??yaka, Turkey | M5.2 | 79 km | 10 km |
| Sep 29, 1999 | 8 km NNW of Ta?köprü, Turkey | M5.2 | 128 km | 10 km |
| Aug 19, 1999 | 3 km SSE of Ç?narc?k, Turkey | M5.2 | 142 km | 10 km |
| Nov 24, 2013 | 14 km WNW of Yeniça?a, Turkey | M5.1 | 103 km | 6 km |
| Aug 17, 1999 | 9 km SE of Akyaz?, Turkey | M5.1 | 25 km | 10 km |
| Nov 16, 1999 | 2 km S of Bolu, Turkey | M5.1 | 78 km | 10 km |
| Nov 7, 1999 | 8 km E of Akyaz?, Turkey | M5.0 | 33 km | 10 km |
| Sep 9, 1999 | 7 km NNW of Koruköy, Turkey | M5.0 | 143 km | 13 km |
| Aug 26, 2001 | 24 km N of Bolu, Turkey | M5.0 | 90 km | 8 km |
| Aug 17, 1999 | 2 km NW of Kullar, Turkey | M5.0 | 79 km | 10 km |
| Aug 17, 1999 | 9 km ESE of Köseköy, Turkey | M4.9 | 67 km | 10 km |
| Aug 17, 1999 | 11 km ESE of Akyaz?, Turkey | M4.9 | 28 km | 10 km |
| Feb 14, 2000 | 28 km SW of Devrek, Turkey | M4.9 | 107 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 2.5 m (8 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1999 | KOCAELI, TURKEY | Earthquake | 2.5 m | 17,118 | 80 km |
| 1963 | MARMARA SEA | Earthquake | 1.0 m | 1 | 142 km |
| 986 | MARMARA SEA | Earthquake | — | — | 141 km |
| 551 | LEVANTIAN SEA | Earthquake | — | — | 87 km |
| 478 | MARMARA SEA | Earthquake | — | — | 141 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 2.4 in | Coldest |
| February | 34°F (1°C) | 1.9 in | |
| March | 39°F (4°C) | 2.1 in | |
| April | 48°F (9°C) | 2.1 in | |
| May | 56°F (13°C) | 2.3 in | |
| June | 62°F (17°C) | 1.9 in | |
| July | 66°F (19°C) | 1.0 in | Warmest |
| August | 66°F (19°C) | 0.8 in | Driest |
| September | 60°F (16°C) | 0.9 in | |
| October | 52°F (11°C) | 1.6 in | |
| November | 43°F (6°C) | 1.8 in | |
| December | 36°F (2°C) | 2.8 in | Wettest |
Göynük has a seasonal temperature swing of 34°F / from 32°F in January to 66°F in July. Total annual precipitation is 21.7 inches, with December being the wettest month (2.8") and August the driest (0.8").