Hartenberg is nestled in a valley on the free-draining, north-eastern slopes of the Bottelary Hills. Vineyards face north,west, and east, with varietals planted to take advantage of either morning or afternoon sun. There is a difference in altitude of some 250 meters between the northern and southern vineyards.
Typically Mediterranean climate of warm, dry summers and cold ,wet winters.
Temperature (ave): 12 Deg Celcius (Min), 26 Deg Celcius (Max)
Degree Days (ave): 3 000
Annual Rainfall: 600 mm