Climate averages 1991–2020

Ceyhan weather
in December.

A cool, wet month: the 10th warmest and the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 14.5°C Daytime mean, December
Average low 5.8°C Night-time mean, December
Rainfall 137 mm 10 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Ceyhan · average highYear overview

December is a cool month in Ceyhan: daytime highs average 14.5°C and nights cool to about 5.8°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 137 mm of rain on roughly 10 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 40 min on an average December day.

The nearest other city in this atlas is Osmaniye (39 km away). In December its highs average 13.9°C, 0.5°C cooler than Ceyhan, with 102 mm of rain.

Among the 138 cities listed in Turkey, Ceyhan ranks joint 5th of 138 for the warmest December highs and 129th of 138 for the driest December (rainfall, lowest first). The mean December high of those 138 cities is 9.3°C; Ceyhan is 5.2°C warmer than that mean.

From December to January, average highs fall by 1.7°C to 12.8°C, and monthly rainfall falls from 137 mm to 127 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 0510152025303540 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Ceyhan climate table

1991–2020
Monthly climate averages for Ceyhan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 12.8°C4.0°C4.0°C12710.69.910 h
February 14.2°C4.5°C4.5°C11210.410.811 h
March 17.4°C7.6°C7.6°C11311.111.912 h
April 21.3°C11.7°C11.7°C879.913.113 h
May 25.7°C16.3°C16.3°C768.214.114 h
June 29.8°C20.5°C20.5°C325.114.715 h
July 33.0°C23.7°C23.7°C122.214.414 h
August 33.7°C24.5°C24.5°C102.613.614 h
September 31.1°C21.2°C21.2°C536.312.512 h
October 26.6°C16.0°C16.0°C817.011.311 h
November 19.8°C9.7°C9.7°C957.210.210 h
December, selected 14.5°C5.8°C5.8°C13710.49.710 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

December in nearby cities

Distance from Ceyhan

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ceyhan) is explained once on the Ceyhan year overview and on the Sources, method and limits page.