Climate averages 1991–2020
Bilecik weather
in September.
A warm, fairly dry month: the 4th warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Bilecik: daytime highs average 25.0°C and nights cool to about 13.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 24 mm of rain on roughly 5 days, which makes September a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average September day.
The nearest other city in this atlas is İnegol (40 km away). In September its highs average 25.2°C, about as warm as Bilecik, with 55 mm of rain.
Among the 138 cities listed in Turkey, Bilecik ranks joint 95th of 138 for the warmest September highs and joint 77th of 138 for the driest September (rainfall, lowest first). The mean September high of those 138 cities is 27.1°C; Bilecik is 2.0°C cooler than that mean.
From September to October, average highs fall by 5.3°C to 19.8°C, and monthly rainfall rises from 24 mm to 44 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bilecik climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.6°C-1.9°C | -1.9°C | 58 | 10.4 | 9.710 h |
| February | 8.5°C-1.4°C | -1.4°C | 53 | 10.0 | 10.611 h |
| March | 12.0°C1.1°C | 1.1°C | 64 | 11.1 | 11.912 h |
| April | 16.8°C4.9°C | 4.9°C | 56 | 10.5 | 13.213 h |
| May | 21.5°C9.8°C | 9.8°C | 49 | 9.2 | 14.414 h |
| June | 25.1°C13.8°C | 13.8°C | 38 | 7.7 | 15.015 h |
| July | 28.1°C16.6°C | 16.6°C | 15 | 3.7 | 14.715 h |
| August | 28.8°C17.1°C | 17.1°C | 13 | 3.2 | 13.814 h |
| September, selected | 25.0°C13.2°C | 13.2°C | 24 | 5.0 | 12.512 h |
| October | 19.8°C9.1°C | 9.1°C | 44 | 6.9 | 11.211 h |
| November | 13.9°C3.6°C | 3.6°C | 44 | 7.8 | 10.010 h |
| December | 8.4°C0.1°C | 0.1°C | 62 | 10.1 | 9.49 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- İnegol in SeptemberTurkey · 40 kmHigh 25.2°C · Low 14.7°C · 55 mm rain
- Eskişehir in SeptemberTurkey · 61 kmHigh 25.1°C · Low 12.2°C · 14 mm rain
- İzmit in SeptemberTurkey · 69 kmHigh 25.0°C · Low 16.5°C · 61 mm rain
- Derince in SeptemberTurkey · 70 kmHigh 25.1°C · Low 16.7°C · 56 mm rain
- Gemlik in SeptemberTurkey · 77 kmHigh 26.1°C · Low 18.3°C · 54 mm rain
- Bursa in SeptemberTurkey · 78 kmHigh 25.9°C · Low 16.8°C · 56 mm rain
- Adapazarı in SeptemberTurkey · 80 kmHigh 24.4°C · Low 14.8°C · 56 mm rain
- Kütahya in SeptemberTurkey · 80 kmHigh 24.8°C · Low 12.2°C · 20 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bilecik) is explained once on the Bilecik year overview and on the Sources, method and limits page.