Climate averages 1991–2020
Küçükçekmece weather
in September.
A warm, fairly dry month: the 4th warmest and the 5th 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 Küçükçekmece: daytime highs average 23.6°C and nights cool to about 18.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 37 mm of rain on roughly 5 days, which makes September a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 31 min on an average September day.
The nearest other city in this atlas is Esenyurt (9 km away). In September its highs average 23.4°C, about as warm as Küçükçekmece, with 37 mm of rain.
Among the 138 cities listed in Turkey, Küçükçekmece ranks joint 120th of 138 for the warmest September highs and joint 100th of 138 for the driest September (rainfall, lowest first). The mean September high of those 138 cities is 27.1°C; Küçükçekmece is 3.4°C cooler than that mean.
From September to October, average highs fall by 4.8°C to 18.8°C, and monthly rainfall rises from 37 mm to 65 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
Küçükçekmece climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.9°C4.1°C | 4.1°C | 71 | 11.1 | 9.610 h |
| February | 8.4°C4.0°C | 4.0°C | 61 | 10.3 | 10.611 h |
| March | 10.5°C5.5°C | 5.5°C | 63 | 9.5 | 11.912 h |
| April | 14.5°C8.7°C | 8.7°C | 39 | 7.0 | 13.313 h |
| May | 19.4°C13.6°C | 13.6°C | 29 | 5.8 | 14.414 h |
| June | 24.4°C18.4°C | 18.4°C | 24 | 4.5 | 15.115 h |
| July | 27.1°C21.0°C | 21.0°C | 16 | 2.6 | 14.815 h |
| August | 27.4°C21.8°C | 21.8°C | 13 | 2.4 | 13.814 h |
| September, selected | 23.6°C18.4°C | 18.4°C | 37 | 5.4 | 12.513 h |
| October | 18.8°C14.4°C | 14.4°C | 65 | 7.4 | 11.111 h |
| November | 14.0°C10.0°C | 10.0°C | 61 | 8.4 | 9.910 h |
| December | 9.9°C6.3°C | 6.3°C | 84 | 11.8 | 9.39 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
- Esenyurt in SeptemberTurkey · 9 kmHigh 23.4°C · Low 18.3°C · 37 mm rain
- Beylikdüzü in SeptemberTurkey · 11 kmHigh 23.3°C · Low 18.4°C · 37 mm rain
- Başakşehir in SeptemberTurkey · 13 kmHigh 23.7°C · Low 17.6°C · 37 mm rain
- Istanbul in SeptemberTurkey · 15 kmHigh 23.9°C · Low 18.5°C · 46 mm rain
- Sultangazi in SeptemberTurkey · 15 kmHigh 23.8°C · Low 17.5°C · 37 mm rain
- Şişli in SeptemberTurkey · 20 kmHigh 24.0°C · Low 17.8°C · 46 mm rain
- Üsküdar in SeptemberTurkey · 21 kmHigh 23.9°C · Low 18.2°C · 46 mm rain
- Arnavutköy in SeptemberTurkey · 22 kmHigh 23.9°C · Low 17.4°C · 50 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 Küçükçekmece) is explained once on the Küçükçekmece year overview and on the Sources, method and limits page.
Esenyurt, Sultangazi and Beylikdüzü lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.