With its vibrant downtown and year round sunshine, Redwood City is quickly becoming the entertainment hub of the Peninsula. Enjoy theater, music, dance, cultural arts, and much more, all in the heart of Silicon Valley. Redwood City is the third largest city in the County of San Mateo. The city enjoys an average of 255 sunny days a year, which it boasts via the city slogan: "Climate Best by Government Test". Incorporated in 1867, Redwood City is home to the San Mateo County History Museum (located in the county's old courthouse) and the only active deep water port within the south bay of San Francisco.