Ojai is situated in a small east-west valley, north of Ventura and east of Santa Barbara. It is approximately 15 miles inland from the Pacific coast.

Since Ojai is lined up with an east-west mountain range, it is one of few towns in the world to have a “Pink Moment” occur as the sun is setting, when the fading sunlight creates a brilliant shade of pink for several minutes on the Topatopa Bluffs at the east end of the Ojai Valley, over 6,000 feet above sea level. Nordhoff Ridge, the western extension of the Topatopa Mountains, towers over the north side of the town and valley at more than 5,000 feet. Sulphur Mountain creates the southern ranges bounding the Ojai Valley, a little under 3,000 feet in elevation.

The Ventura River flows through the Ventura River Valley, draining the mountains surrounding Ojai to the north and east and emptying into the Pacific Ocean at the city of Ventura.

The climate of Ojai is Mediterranean, characterized by hot, dry summers and mild winters, with lows at night sometimes below freezing. As is typical for much of coastal southern California, most precipitation falls in the form of rain between the months of October and April, with intervening dry summers.

The town of Ojai and its surrounding area is home to many unique recreational activities. Los Padres National Forest borders the town on the north, and many backcountry areas within the forest are accessible from Highway 33, which is the major highway through town south to north. To the west, the Lake Casitas Recreation Area offers camping, picnicking, and hiking as well.