Climate averages 1991–2020
Adapazarı weather
in December.
A cool, 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 Adapazarı: daytime highs average 9.9°C and nights cool to about 2.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 103 mm of rain on roughly 13 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 19 min on an average December day.
The nearest other city in this atlas is İzmit (40 km away). In December its highs average 10.5°C, 0.5°C warmer than Adapazarı, with 110 mm of rain.
Among the 138 cities listed in Turkey, Adapazarı ranks joint 63rd of 138 for the warmest December highs and joint 100th of 138 for the driest December (rainfall, lowest first). The mean December high of those 138 cities is 9.3°C; Adapazarı is 0.7°C warmer than that mean.
From December to January, average highs fall by 1.7°C to 8.3°C, and monthly rainfall falls from 103 mm to 97 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
Adapazarı climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.3°C0.0°C | 0.0°C | 97 | 13.1 | 9.610 h |
| February | 9.8°C0.3°C | 0.3°C | 88 | 13.2 | 10.611 h |
| March | 12.9°C2.6°C | 2.6°C | 95 | 13.5 | 11.912 h |
| April | 17.3°C6.3°C | 6.3°C | 74 | 11.1 | 13.313 h |
| May | 21.6°C10.9°C | 10.9°C | 73 | 10.5 | 14.414 h |
| June | 25.2°C15.1°C | 15.1°C | 69 | 10.0 | 15.015 h |
| July | 27.2°C17.7°C | 17.7°C | 38 | 6.3 | 14.815 h |
| August | 27.6°C18.4°C | 18.4°C | 39 | 6.2 | 13.814 h |
| September | 24.4°C14.8°C | 14.8°C | 56 | 8.0 | 12.513 h |
| October | 19.9°C11.0°C | 11.0°C | 84 | 10.0 | 11.211 h |
| November | 15.0°C5.8°C | 5.8°C | 75 | 9.8 | 10.010 h |
| December, selected | 9.9°C2.0°C | 2.0°C | 103 | 13.2 | 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
- İzmit in DecemberTurkey · 40 kmHigh 10.5°C · Low 3.4°C · 110 mm rain
- Derince in DecemberTurkey · 50 kmHigh 10.5°C · Low 3.7°C · 103 mm rain
- Düzce in DecemberTurkey · 64 kmHigh 9.8°C · Low 1.6°C · 105 mm rain
- Bilecik in DecemberTurkey · 80 kmHigh 8.4°C · Low 0.1°C · 62 mm rain
- Gebze in DecemberTurkey · 82 kmHigh 9.5°C · Low 4.2°C · 86 mm rain
- Yalova in DecemberTurkey · 96 kmHigh 10.6°C · Low 4.9°C · 100 mm rain
- Sultanbeyli in DecemberTurkey · 97 kmHigh 9.7°C · Low 5.3°C · 100 mm rain
- Bolu in DecemberTurkey · 101 kmHigh 6.7°C · Low -1.0°C · 96 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 Adapazarı) is explained once on the Adapazarı year overview and on the Sources, method and limits page.