The biggest hurdle facing producers here is not the lay of the land but the climate. We know that vines love warmth in the summer, but they also need cold in the winter and, in general, prefer drier climates. We don’t think of cold and dry when we think of Brazil, but Brazil is an awfully large country and Rio Grande do Sul is located in far southern Brazil.
While the notion of Brazil as a warm country is well founded, I was there in the dead of their winter and was lucky enough to enjoy daytime temperatures that often hit 70 degrees. By the same token, the temperature often flirted with freezing overnight. The warm weather broke shortly after my departure, witnessed by 50 degree daytime highs and lows well below freezing. So, the region does have temperature swings sufficient for healthy vine growth. Even during the warmer summer months, temperatures tend to be held in check by the temperature drainage afforded by the extensive valley system here.