The impact of the Humboldt Current and the garúa it produces is substantial. Lima, Peru is near sea level. The city is located at 12° south latitude. It is in the tropics and would in most climatic situations have average temperatures of or higher in every month of the year. By contrast, Lima has monthly average temperatures that range from (January through March) in the warmest months and in the coolest months of July through September, the months in which the garúa is most frequent.