Climate averages 1991–2020
Derince weather
in July.
A hot, fairly dry month: the 2nd warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Derince: daytime highs average 28.2°C and nights cool to about 19.3°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 38 mm of rain on roughly 6 days, which makes July a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 47 min on an average July day.
The nearest other city in this atlas is İzmit (10 km away). In July its highs average 28.0°C, about as warm as Derince, with 43 mm of rain.
Among the 138 cities listed in Turkey, Derince ranks joint 97th of 138 for the warmest July highs and joint 123rd of 138 for the driest July (rainfall, lowest first). The mean July high of those 138 cities is 30.9°C; Derince is 2.7°C cooler than that mean.
From July to August, average highs rise by 0.3°C to 28.5°C, and monthly rainfall falls from 38 mm to 36 mm.
The annual picture
July 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
Derince climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.9°C1.7°C | 1.7°C | 95 | 13.5 | 9.610 h |
| February | 10.2°C2.0°C | 2.0°C | 82 | 12.8 | 10.611 h |
| March | 13.2°C4.1°C | 4.1°C | 88 | 13.0 | 11.912 h |
| April | 17.8°C7.8°C | 7.8°C | 66 | 10.8 | 13.313 h |
| May | 22.3°C12.6°C | 12.6°C | 59 | 9.2 | 14.414 h |
| June | 26.1°C16.9°C | 16.9°C | 63 | 9.5 | 15.015 h |
| July, selected | 28.2°C19.3°C | 19.3°C | 38 | 5.9 | 14.815 h |
| August | 28.5°C19.9°C | 19.9°C | 36 | 5.5 | 13.814 h |
| September | 25.1°C16.7°C | 16.7°C | 56 | 7.9 | 12.513 h |
| October | 20.5°C12.8°C | 12.8°C | 81 | 10.3 | 11.211 h |
| November | 15.5°C7.6°C | 7.6°C | 75 | 10.1 | 10.010 h |
| December | 10.5°C3.7°C | 3.7°C | 103 | 13.0 | 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
July in nearby cities
- İzmit in JulyTurkey · 10 kmHigh 28.0°C · Low 19.2°C · 43 mm rain
- Gebze in JulyTurkey · 33 kmHigh 27.2°C · Low 19.1°C · 28 mm rain
- Yalova in JulyTurkey · 47 kmHigh 29.0°C · Low 19.9°C · 24 mm rain
- Adapazarı in JulyTurkey · 50 kmHigh 27.2°C · Low 17.7°C · 38 mm rain
- Sultanbeyli in JulyTurkey · 51 kmHigh 27.2°C · Low 20.1°C · 25 mm rain
- Sancaktepe in JulyTurkey · 56 kmHigh 27.2°C · Low 20.5°C · 25 mm rain
- Ümraniye in JulyTurkey · 65 kmHigh 27.0°C · Low 20.4°C · 23 mm rain
- Gemlik in JulyTurkey · 66 kmHigh 29.6°C · Low 20.7°C · 26 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 Derince) is explained once on the Derince year overview and on the Sources, method and limits page.