A new and distinct variety of clingstone nectarine tree denominated ‘Andes Nec-1’ that is similar to the nectarine ‘Venus’ in terms of its high postharvest potential, and firm in texture. The variety is distinguished from ‘Venus’ by producing fruit that is clingstone instead of freestone, has skin completely covered by red blush, and matures about two weeks earlier. The varietys harvest period is a week before the ‘Fantasy’ nectarine variety. Its fruit is solid red to red-purple blush over yellow flesh, with a round, symmetrical fruit shape.
