Sunset Cliff is a well-known area in San Diego, but what makes it unique is that usually when people think of January, they picture cold winters. This isn’t the case for San Diego. With an average of 24 days of sunshine and day temperatures in the mid to high 60°’s F, you have a high chance of catching a gorgeous ocean sunset on a warm day in January. It’s one of the best San Diego Instagram spots to watch the sun disappear beneath the waves.