Climate averages 1991–2020
İzmir weather
in December.
A cool, wet month: the 11th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in İzmir: daytime highs average 12.4°C and nights cool to about 4.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 109 mm of rain on roughly 11 days, which makes December a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 33 min on an average December day.
The nearest other city in this atlas is Karşıyaka (5 km away). In December its highs average 12.9°C, 0.5°C warmer than İzmir, with 101 mm of rain.
Among the 138 cities listed in Turkey, İzmir ranks 23rd of 138 for the warmest December highs and joint 110th of 138 for the driest December (rainfall, lowest first). The mean December high of those 138 cities is 9.3°C; İzmir is 3.1°C warmer than that mean.
From December to January, average highs fall by 1.2°C to 11.2°C, and monthly rainfall rises from 109 mm to 111 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
İzmir climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.2°C3.0°C | 3.0°C | 111 | 10.1 | 9.810 h |
| February | 12.6°C3.5°C | 3.5°C | 101 | 10.2 | 10.711 h |
| March | 15.7°C5.4°C | 5.4°C | 83 | 9.7 | 11.912 h |
| April | 20.1°C9.1°C | 9.1°C | 64 | 8.1 | 13.213 h |
| May | 25.7°C14.1°C | 14.1°C | 41 | 6.2 | 14.214 h |
| June | 31.4°C18.6°C | 18.6°C | 17 | 3.6 | 14.815 h |
| July | 35.2°C21.3°C | 21.3°C | 3.3 | 1.0 | 14.615 h |
| August | 35.3°C21.5°C | 21.5°C | 4.0 | 1.1 | 13.714 h |
| September | 30.0°C17.7°C | 17.7°C | 24 | 3.2 | 12.512 h |
| October | 23.7°C13.4°C | 13.4°C | 65 | 5.7 | 11.211 h |
| November | 17.4°C8.5°C | 8.5°C | 96 | 7.9 | 10.110 h |
| December, selected | 12.4°C4.8°C | 4.8°C | 109 | 11.4 | 9.510 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
- Karşıyaka in DecemberTurkey · 5 kmHigh 12.9°C · Low 5.5°C · 101 mm rain
- Bornova in DecemberTurkey · 12 kmHigh 12.6°C · Low 5.1°C · 109 mm rain
- Manisa in DecemberTurkey · 33 kmHigh 12.5°C · Low 4.8°C · 108 mm rain
- Turgutlu in DecemberTurkey · 50 kmHigh 12.0°C · Low 4.0°C · 91 mm rain
- Akhisar in DecemberTurkey · 83 kmHigh 11.5°C · Low 2.7°C · 65 mm rain
- Aydın in DecemberTurkey · 88 kmHigh 13.5°C · Low 4.6°C · 120 mm rain
- Salihli in DecemberTurkey · 88 kmHigh 12.2°C · Low 4.3°C · 82 mm rain
- Soma in DecemberTurkey · 95 kmHigh 10.7°C · Low 3.4°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 İzmir) is explained once on the İzmir year overview and on the Sources, method and limits page.
Bornova lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.