Mardin is in the hot south-east, so spring and autumn are the seasons to come.
March to May is the best season, with mild days of 18 to 28°C and the plain green after winter rain.
Very hot, regularly above 40°C in July and August. Sightseeing is for early morning and evening only.
September is still hot; October and November are ideal, with warm days and cool nights.
Cool and sometimes wet at 5 to 12°C, with occasional snow on the hill. Quiet and atmospheric.
April, May, October and November. Avoid July and August unless you cope well with extreme heat.
See the top things to do in Mardin, how to get there and where to stay. For the whole country, read the best time to visit Turkey.