Climate averages 1991–2020
Sultangazi weather
in December.
A cool, moderately wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Sultangazi: daytime highs average 9.6°C and nights cool to about 5.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 84 mm of rain on roughly 12 days, which makes December a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 17 min on an average December day.
The nearest other city in this atlas is Başakşehir (6 km away). In December its highs average 9.5°C, about as warm as Sultangazi, with 84 mm of rain.
Among the 138 cities listed in Turkey, Sultangazi ranks joint 70th of 138 for the warmest December highs and joint 61st of 138 for the driest December (rainfall, lowest first). The mean December high of those 138 cities is 9.3°C; Sultangazi is 0.3°C warmer than that mean.
From December to January, average highs fall by 1.9°C to 7.7°C, and monthly rainfall falls from 84 mm to 71 mm.
The annual picture
December 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
Sultangazi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.7°C3.1°C | 3.1°C | 71 | 11.1 | 9.610 h |
| February | 8.4°C3.1°C | 3.1°C | 61 | 10.3 | 10.611 h |
| March | 10.8°C4.6°C | 4.6°C | 63 | 9.5 | 11.912 h |
| April | 15.1°C7.9°C | 7.9°C | 39 | 7.0 | 13.313 h |
| May | 20.1°C12.8°C | 12.8°C | 29 | 5.8 | 14.514 h |
| June | 24.9°C17.5°C | 17.5°C | 24 | 4.5 | 15.115 h |
| July | 27.5°C20.2°C | 20.2°C | 16 | 2.6 | 14.815 h |
| August | 27.7°C21.0°C | 21.0°C | 13 | 2.4 | 13.814 h |
| September | 23.8°C17.5°C | 17.5°C | 37 | 5.4 | 12.513 h |
| October | 18.8°C13.5°C | 13.5°C | 65 | 7.4 | 11.111 h |
| November | 13.9°C9.0°C | 9.0°C | 61 | 8.4 | 9.910 h |
| December, selected | 9.6°C5.3°C | 5.3°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
December in nearby cities
- Başakşehir in DecemberTurkey · 6 kmHigh 9.5°C · Low 5.5°C · 84 mm rain
- Şişli in DecemberTurkey · 11 kmHigh 9.8°C · Low 5.6°C · 99 mm rain
- Istanbul in DecemberTurkey · 12 kmHigh 10.1°C · Low 6.4°C · 99 mm rain
- Arnavutköy in DecemberTurkey · 14 kmHigh 9.5°C · Low 5.1°C · 87 mm rain
- Küçükçekmece in DecemberTurkey · 15 kmHigh 9.9°C · Low 6.3°C · 84 mm rain
- Üsküdar in DecemberTurkey · 15 kmHigh 10.1°C · Low 6.1°C · 99 mm rain
- Esenyurt in DecemberTurkey · 18 kmHigh 9.6°C · Low 6.2°C · 84 mm rain
- Beylikdüzü in DecemberTurkey · 24 kmHigh 9.5°C · Low 6.1°C · 84 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 Sultangazi) is explained once on the Sultangazi year overview and on the Sources, method and limits page.
Esenyurt, Küçükçekmece 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.