is located in Coos County, Oregon, United States, where the Coos River enters Coos Bay on the Pacific Ocean. The city borders on the nearby city of North Bend, which together, are often referred to as one entity, called either Coos Bay-North Bend or the Bay Area. Coos Bay had a total population of 15,374 in the 2000 census, with a 2007 estimate of 16,210 residents.
The climate in Coos Bay and surrounds can be described as temperate west coast, with winter temperatures from 37-55 degrees Fahrenheit (3-13 °C) and 52-70 degrees Fahrenheit (11-21 °C) in summer. Cool breezes off the Pacific moderate the city's climate year round. Rain is abundant in winter, due to moist low pressure troughs from the Pacific Ocean. The city's annual rainfall is about 64.2 inches (around 1625 mm), but totals are less than an inch in July and August. Fog often blankets the coastal fringe; common in summer due to the temperature gradient between the cool Pacific Ocean and the warm inland. Snow falls on less than five days per year in the city, but can be heavy in the adjacent Oregon Coast Range. Nearby Cape Blanco is one of the windiest places on Earth, with gusts of 125 miles per hour (200 km/h) or more achieved during severe winter storms.