Horta de Sant Joan, due to being located in the south of the region, has its own particularities. While the climate in the northern half of Terra Alta is Mediterranean with a continental trend, the southern half receives more influence from the sea breeze. In addition to this mild influence, the effects derived from the altitude give way to a cooler and more humid environment, in contrast with the drier climate in the northern area.

Els Ports Nature Park, a Biosphere Reserve, is the green lung of the area. It is one of the best preserved areas in the Mediterranean region, and it is home to an important collection of flora and fauna. Thanks to its altitude, La Horta region, located in the inland area of Els Ports, has a sub-Mediterranean climate, with greater rainfall and lower average temperatures.

In the afternoon, when the garbí wind (southwest) blows, the vines truly love the humidity it brings. But Els Ports is an area of great contrasts, and it can go from the most absolute calm to the more hurricane like Cierzo wind, although this helps to ensure the vines suffer less diseases.

Due to all of this, wine growing in Horta de Sant Joan is more complex and this leads to the grapes having their very own particularities.