Exterior paint generally dries within a few hours. Oil and latex paints dry at different times, but oil-based paint takes longer to settle. The quality of the paint also determines the time for drying.
Humidity and cold weather can slow down drying times for paint. It is best to paint during a temperature range of 50 to 85 degrees Fahrenheit for effective drying. Applying paint in shaded areas also prevents the paint from drying too fast. It is recommended that painters apply 10 percent more thinner when painting in direct sunlight or hotter conditions to maximize painting time. Regardless of whether the paint is oil or latex, purchase the best paint to avoid applying multiple coats.