Climate averages 1991–2020
İzmit weather
in January.
A cool, wet month: the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cool month in İzmit: daytime highs average 8.8°C and nights cool to about 1.4°C. By daytime temperature it is the coolest month of the year.
Expect about 101 mm of rain on roughly 14 days, which makes January a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 37 min on an average January day.
The nearest other city in this atlas is Derince (10 km away). In January its highs average 8.9°C, about as warm as İzmit, with 95 mm of rain.
Among the 138 cities listed in Turkey, İzmit ranks joint 49th of 138 for the warmest January highs and 104th of 138 for the driest January (rainfall, lowest first). The mean January high of those 138 cities is 7.4°C; İzmit is 1.4°C warmer than that mean.
From January to February, average highs rise by 1.4°C to 10.2°C, and monthly rainfall falls from 101 mm to 90 mm.
The annual picture
January 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
İzmit climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 8.8°C1.4°C | 1.4°C | 101 | 13.9 | 9.610 h |
| February | 10.2°C1.8°C | 1.8°C | 90 | 13.4 | 10.611 h |
| March | 13.2°C3.9°C | 3.9°C | 97 | 13.9 | 11.912 h |
| April | 17.9°C7.7°C | 7.7°C | 76 | 11.7 | 13.313 h |
| May | 22.3°C12.4°C | 12.4°C | 73 | 10.9 | 14.414 h |
| June | 25.9°C16.8°C | 16.8°C | 75 | 10.6 | 15.015 h |
| July | 28.0°C19.2°C | 19.2°C | 43 | 6.5 | 14.815 h |
| August | 28.2°C19.8°C | 19.8°C | 41 | 6.4 | 13.814 h |
| September | 25.0°C16.5°C | 16.5°C | 61 | 8.4 | 12.513 h |
| October | 20.4°C12.6°C | 12.6°C | 90 | 11.0 | 11.211 h |
| November | 15.5°C7.3°C | 7.3°C | 80 | 10.4 | 10.010 h |
| December | 10.5°C3.4°C | 3.4°C | 110 | 13.5 | 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
January in nearby cities
- Derince in JanuaryTurkey · 10 kmHigh 8.9°C · Low 1.7°C · 95 mm rain
- Adapazarı in JanuaryTurkey · 40 kmHigh 8.3°C · Low 0.0°C · 97 mm rain
- Gebze in JanuaryTurkey · 42 kmHigh 7.8°C · Low 2.1°C · 80 mm rain
- Yalova in JanuaryTurkey · 56 kmHigh 8.8°C · Low 2.8°C · 90 mm rain
- Sultanbeyli in JanuaryTurkey · 60 kmHigh 7.9°C · Low 3.1°C · 87 mm rain
- Sancaktepe in JanuaryTurkey · 64 kmHigh 8.0°C · Low 3.7°C · 87 mm rain
- Bilecik in JanuaryTurkey · 69 kmHigh 6.6°C · Low -1.9°C · 58 mm rain
- Ümraniye in JanuaryTurkey · 73 kmHigh 7.7°C · Low 3.6°C · 85 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 İzmit) is explained once on the İzmit year overview and on the Sources, method and limits page.