Photo Courtesy of Dustin Aksland
Tourism in Istanbul booms during the summer months of August and September, as do the room rates, humidity, and lines to enter major tourist attractions. For a more comfortable vacation, visit in spring or autumn when temperatures peak around 70°F and humidity is mild. Mid-April is by far the prettiest time of year, when over 14 million tulips bring color and life to the city as part of the Istanbul Tulip Festival.