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Weather & Climate in Bilecik, Turkey
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bilecik experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 33°F in January while summers reach 67°F in July. The area gets 298 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 20.9 inches (drier than the 38-inch national average). The area receives 2.5 inches of snow annually. The city sits at an elevation of 1,696 feet.
Temperature
33°F Jan (1°C)
67°F Jul (19°C)
| Annual Average | 51.0°F |
| 6% below US avg | |
| January Average | 33°F (1°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 298 days/yr |
Geography
| Elevation | 1,696 ft (517 m) |
| Area | 0.1 sq mi (0.3 km²) |
| Population Density | 676,882/sq mi |
| Coordinates | 40.1419°N, 29.9793°W |
| Timezone | Europe/Istanbul |
Precipitation & Snow
Air Quality
Earthquake History
3,928 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 | 68 km | 17 km |
| Nov 12, 1999 | 8 km S of Düzce, Turkey | M7.2 | 121 km | 10 km |
| Sep 13, 1999 | 4 km SE of Köseköy, Turkey | M5.9 | 63 km | 13 km |
| May 19, 2011 | 12 km ENE of Simav, Turkey | M5.8 | 134 km | 7 km |
| Nov 11, 1999 | 5 km N of Sapanca, Turkey | M5.7 | 71 km | 22 km |
| Nov 12, 1999 | 7 km SSW of Düzce, Turkey | M5.5 | 120 km | 10 km |
| Aug 23, 2000 | 8 km E of Akyaz?, Turkey | M5.3 | 87 km | 15 km |
| Feb 17, 2009 | 5 km ENE of Simav, Turkey | M5.2 | 141 km | 7 km |
| Aug 31, 1999 | 2 km NNE of Kar??yaka, Turkey | M5.2 | 63 km | 10 km |
| Sep 29, 1999 | 8 km NNW of Ta?köprü, Turkey | M5.2 | 85 km | 10 km |
| Nov 12, 1999 | 11 km W of Bolu, Turkey | M5.2 | 143 km | 10 km |
| May 3, 2012 | 13 km NE of Simav, Turkey | M5.2 | 132 km | 3 km |
| Aug 19, 1999 | 3 km SSE of Ç?narc?k, Turkey | M5.2 | 89 km | 10 km |
| Aug 17, 1999 | 9 km SE of Akyaz?, Turkey | M5.1 | 80 km | 10 km |
| Aug 31, 2021 | 19 km W of ?hsaniye, Turkey | M5.1 | 124 km | 10 km |
| Aug 17, 1999 | 2 km NW of Kullar, Turkey | M5.0 | 67 km | 10 km |
| Nov 7, 1999 | 8 km E of Akyaz?, Turkey | M5.0 | 88 km | 10 km |
| Sep 9, 1999 | 7 km NNW of Koruköy, Turkey | M5.0 | 95 km | 13 km |
| Aug 17, 1999 | 9 km ESE of Köseköy, Turkey | M4.9 | 65 km | 10 km |
| Aug 17, 1999 | 11 km ESE of Akyaz?, Turkey | M4.9 | 86 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
6 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 | 120 km |
| 1999 | KOCAELI, TURKEY | Earthquake | 2.5 m | 17,118 | 69 km |
| 1963 | MARMARA SEA | Earthquake | 1.0 m | 1 | 93 km |
| 986 | MARMARA SEA | Earthquake | — | — | 99 km |
| 551 | LEVANTIAN SEA | Earthquake | — | — | 74 km |
| 478 | MARMARA SEA | Earthquake | — | — | 99 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 2.5 in | Coldest |
| February | 36°F (2°C) | 2.0 in | |
| March | 41°F (5°C) | 2.1 in | |
| April | 50°F (10°C) | 2.0 in | |
| May | 57°F (14°C) | 2.1 in | |
| June | 63°F (17°C) | 1.6 in | |
| July | 67°F (19°C) | 0.8 in | Warmest |
| August | 67°F (19°C) | 0.6 in | Driest |
| September | 61°F (16°C) | 0.9 in | |
| October | 54°F (12°C) | 1.8 in | |
| November | 45°F (7°C) | 1.9 in | |
| December | 38°F (3°C) | 2.7 in | Wettest |
Bilecik has a seasonal temperature swing of 34°F / from 33°F in January to 67°F in July. Total annual precipitation is 20.9 inches, with December being the wettest month (2.7") and August the driest (0.6").