Climate averages 1991–2020
Derince weather
in May.
A warm, moderately wet month: the 5th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Derince: daytime highs average 22.3°C and nights cool to about 12.6°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 59 mm of rain on roughly 9 days, which makes May a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 26 min on an average May day.
The nearest other city in this atlas is İzmit (10 km away). In May its highs average 22.3°C, about as warm as Derince, with 73 mm of rain.
Among the 138 cities listed in Turkey, Derince ranks joint 70th of 138 for the warmest May highs and joint 92nd of 138 for the driest May (rainfall, lowest first). The mean May high of those 138 cities is 22.4°C; Derince is 0.2°C cooler than that mean.
From May to June, average highs rise by 3.8°C to 26.1°C, and monthly rainfall rises from 59 mm to 63 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- İzmit in MayTurkey · 10 kmHigh 22.3°C · Low 12.4°C · 73 mm rain
- Gebze in MayTurkey · 33 kmHigh 20.5°C · Low 12.0°C · 44 mm rain
- Yalova in MayTurkey · 47 kmHigh 21.8°C · Low 13.0°C · 39 mm rain
- Adapazarı in MayTurkey · 50 kmHigh 21.6°C · Low 10.9°C · 73 mm rain
- Sultanbeyli in MayTurkey · 51 kmHigh 20.2°C · Low 12.8°C · 35 mm rain
- Sancaktepe in MayTurkey · 56 kmHigh 20.1°C · Low 13.2°C · 35 mm rain
- Ümraniye in MayTurkey · 65 kmHigh 19.7°C · Low 13.0°C · 35 mm rain
- Gemlik in MayTurkey · 66 kmHigh 22.8°C · Low 14.0°C · 53 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.