Climate averages 1991–2020
Mersin weather
in September.
A hot, very dry month: the 3rd warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Mersin: daytime highs average 29.0°C and nights cool to about 20.0°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 11 mm of rain on roughly 2 days, which makes September a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is Tarsus (25 km away). In September its highs average 30.0°C, 1.0°C warmer than Mersin, with 11 mm of rain.
Among the 138 cities listed in Turkey, Mersin ranks 46th of 138 for the warmest September highs and joint 32nd of 138 for the driest September (rainfall, lowest first). The mean September high of those 138 cities is 27.1°C; Mersin is 2.0°C warmer than that mean.
From September to October, average highs fall by 3.8°C to 25.2°C, and monthly rainfall rises from 11 mm to 30 mm.
The annual picture
September 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
Mersin climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.2°C4.8°C | 4.8°C | 99 | 9.5 | 9.910 h |
| February | 13.4°C5.2°C | 5.2°C | 62 | 7.8 | 10.811 h |
| March | 16.6°C7.6°C | 7.6°C | 47 | 6.7 | 11.912 h |
| April | 20.3°C11.0°C | 11.0°C | 29 | 5.2 | 13.113 h |
| May | 24.3°C15.1°C | 15.1°C | 21 | 3.6 | 14.114 h |
| June | 28.0°C18.9°C | 18.9°C | 4.7 | 1.5 | 14.615 h |
| July | 30.9°C22.3°C | 22.3°C | 2.0 | 0.4 | 14.414 h |
| August | 31.4°C23.2°C | 23.2°C | 3.3 | 0.9 | 13.614 h |
| September, selected | 29.0°C20.0°C | 20.0°C | 11 | 2.4 | 12.512 h |
| October | 25.2°C16.0°C | 16.0°C | 30 | 3.8 | 11.311 h |
| November | 19.1°C10.8°C | 10.8°C | 70 | 5.3 | 10.210 h |
| December | 14.0°C6.8°C | 6.8°C | 126 | 9.2 | 9.710 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
September in nearby cities
- Tarsus in SeptemberTurkey · 25 kmHigh 30.0°C · Low 20.4°C · 11 mm rain
- Adana in SeptemberTurkey · 64 kmHigh 32.3°C · Low 20.6°C · 19 mm rain
- Silifke in SeptemberTurkey · 79 kmHigh 31.2°C · Low 21.7°C · 25 mm rain
- Ereğli (Konya), Turkey in SeptemberTurkey · 94 kmHigh 26.5°C · Low 14.4°C · 6.7 mm rain
- Ceyhan in SeptemberTurkey · 107 kmHigh 31.1°C · Low 21.2°C · 53 mm rain
- Arsuz (approximate) in SeptemberTurkey · 120 kmHigh 29.9°C · Low 23.8°C · 32 mm rain
- Kozan in SeptemberTurkey · 126 kmHigh 30.6°C · Low 19.0°C · 50 mm rain
- Niğde in SeptemberTurkey · 128 kmHigh 25.3°C · Low 14.1°C · 17 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 Mersin) is explained once on the Mersin year overview and on the Sources, method and limits page.