Hours, Locations and Fees

Open year-round, Sugarloaf Ridge State Park straddles the boundary between Sonoma and Napa Counties, about 1.5 hours north of San Francisco, 7 miles east of Santa Rosa, and 16 miles north of the town of Sonoma.

Directions
2605 Adobe Canyon Rd, Kenwood 95452
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Park Hours

• Sugarloaf Ridge is open year-round!
• Day-Use Area: open daily 6 AM to 8 PM
• Camping Area: open daily

Visitor Center Hours

The Visitors Center is open Saturday and Sunday from 9am to 5pm, as well as Friday evenings in the summer.

When to Visit

• Sugarloaf Ridge is open year-round!
• Sugarloaf Ridge is busiest in the spring and fall.
• Summers at Sugarloaf Ridge are hot and dry. High temperatures are often in the 90s, cooling down in the evening to the 40s. Ocean fog sometimes penetrates this far inland.
• Most of the park’s forty inches or so of rain come between November and April. Light snow falls occasionally. Wintertime low temperatures drop into the 30s with daytime highs in the 50s and 60s. After the winter rains, there is a picturesque 25-foot waterfall along Sonoma Creek below the campground.
• See the wildflowers: In the spring, the park comes alive with wildflowers including California poppies, cream cups, lupine, penstemon, buttercups, several varieties of pea, shooting stars, trillium, as well as Indian warrior flowers. Less common are golden fairy lantern, zigadene, and fritillaria. In the early summer come clarkia, scarlet larkspur, farewell-to-spring, Mariposa lilies, monkey flowers, and Indian pinks. Yellow star thistles and tarweed are common in late summer.