Climate averages 1991–2020
Şişli weather
in September.
A warm, moderately wet 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 Şişli: daytime highs average 24.0°C and nights cool to about 17.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 46 mm of rain on roughly 6 days, which makes September a moderately wet 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 Üsküdar (5 km away). In September its highs average 23.9°C, about as warm as Şişli, with 46 mm of rain.
Among the 138 cities listed in Turkey, Şişli ranks joint 104th of 138 for the warmest September highs and joint 109th of 138 for the driest September (rainfall, lowest first). The mean September high of those 138 cities is 27.1°C; Şişli is 3.1°C cooler than that mean.
From September to October, average highs fall by 4.9°C to 19.0°C, and monthly rainfall rises from 46 mm to 75 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
Şişli climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.9°C3.4°C | 3.4°C | 85 | 12.4 | 9.610 h |
| February | 8.7°C3.4°C | 3.4°C | 70 | 11.7 | 10.611 h |
| March | 11.1°C4.9°C | 4.9°C | 72 | 10.6 | 11.912 h |
| April | 15.4°C8.1°C | 8.1°C | 47 | 8.1 | 13.313 h |
| May | 20.4°C13.0°C | 13.0°C | 35 | 6.1 | 14.514 h |
| June | 25.1°C17.7°C | 17.7°C | 32 | 5.4 | 15.115 h |
| July | 27.6°C20.4°C | 20.4°C | 23 | 3.4 | 14.815 h |
| August | 27.8°C21.1°C | 21.1°C | 20 | 3.2 | 13.814 h |
| September, selected | 24.0°C17.8°C | 17.8°C | 46 | 6.4 | 12.513 h |
| October | 19.0°C13.7°C | 13.7°C | 75 | 9.0 | 11.111 h |
| November | 14.1°C9.2°C | 9.2°C | 72 | 9.6 | 9.910 h |
| December | 9.8°C5.6°C | 5.6°C | 99 | 12.8 | 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
- Üsküdar in SeptemberTurkey · 5 kmHigh 23.9°C · Low 18.2°C · 46 mm rain
- Istanbul in SeptemberTurkey · 6 kmHigh 23.9°C · Low 18.5°C · 46 mm rain
- Sultangazi in SeptemberTurkey · 11 kmHigh 23.8°C · Low 17.5°C · 37 mm rain
- Ümraniye in SeptemberTurkey · 13 kmHigh 23.5°C · Low 17.9°C · 46 mm rain
- Başakşehir in SeptemberTurkey · 17 kmHigh 23.7°C · Low 17.6°C · 37 mm rain
- Küçükçekmece in SeptemberTurkey · 20 kmHigh 23.6°C · Low 18.4°C · 37 mm rain
- Sancaktepe in SeptemberTurkey · 22 kmHigh 23.7°C · Low 18.0°C · 48 mm rain
- Arnavutköy in SeptemberTurkey · 25 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 Şişli) is explained once on the Şişli year overview and on the Sources, method and limits page.
Istanbul, Ümraniye and Üsküdar lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.