The California King Tides Project help people visualize how sea level rise will impact their lives.  Via smartphones and social media, we invite you to document “king tides” – the highest high tides of today, which will be the average water levels of the future. Everyone is welcome to participate!

Our shores are constantly being altered by human and natural processes and projections indicate that sea level rise will exacerbate these changes.  King Tides images offer a living record of the changes to our coasts and shorelines and a glimpse of what our daily tides may look like in the future as a result of sea level rise.

2015/2016 King Tides Season Dates

  • November 24, 25, and 26, 2015
  • December 22, 23, and 24, 2015
  • January 21 and 22, 2016

View this map for a full listing of king tides times, locations and predicted tide heights across the state. Below is a list of king tide outreach events happening across the state.

Event Name Date Location Description Contact
San Francisco Bay Area
King Tide Nature Walk 11/25, 12/23 & 1/21 China Camp State Park and Rush Ranch Open Space Learn about the marsh, scientific research occurring there, and what king tides can teach us about sea level rise.

Registration required.

Sarah D. Ferner, SF Bay NERR Education Coordinator
Watch the Waters Rise at Pier 14 11/24

9:30am – 10:15am

San Francisco, Pier 14 Take a coffee break with us to watch the water rise and snap a selfie of you and king tides in 2100! Annie Frankel, California Coastal Commission Education Coordinator
Coffee & King Tides at CuriOdyssey 11/24 9:30am San Mateo, CuriOdyssey at Coyote Point Join SMC Supervisor Pine and Supervisor Groom for a king tides coffee break! Meet inside the CuriOdyssey museum for coffee and conversation on tides, El Niño, and sea level rise before our Bayside walk and photo shoot. Bring your travel mug and camera! High tide is at 10:16. Hilary Papendick, County of San Mateo, Climate Resilience Specialist, 650-363-4194
King Tides walk for ages 50+ 1/21

9-11 AM

Shimada Friendship Park, Marina Bay Parkway at Peninsula Dr., Richmond Get a glimpse of what rising sea levels will mean to Bay wildlife and to us humans. Friends of Five Creeks president Susan Schwartz leads this easy, level walk. Binocs and cameras welcome; birds will be crowded into high-tide refuges. f5creeks@gmail.com, 510 848 9358
Coffee & King Tides 11/24  10:30am – 11:30am Don Edwards SF Bay NWR Visitor Center, 2 Marshlands Rd, Fremont, CA, 94555 Take a coffee break with us! Program includes a short walk to the viewing areas. Bring a travel mug and a camera. Jennifer Heroux, Chief of Visitor Services, SF Bay NWRC 510-792-0222 ext. 363
Coffee & King Tides at Surfer’s Beach 11/24 9:00am – 10:00am Surfer’s Beach, adjacent to Highway 1 and Pillar Point Harbor Meet SMC Supervisor Don Horsley and HMB Mayor Marina Fraser for coffee and views of the high-tide from the CA Coastal Trail at Surfer’s Beach near Pillar Point Harbor. Bring your travel mug and camera! Deborah Hirst, Legislative Aide, Supervisor Don Horsley, dhirst@smcgov.org, (650) 599-1019
Central Coast
Annual Elkhorn Slough Reserve Volunteer King Tide Walk 1/26/2015


Elkhorn Slough Reserve, Watsonville California The annual volunteers walk to 4 sites around the Reserve to capture the impact of this year’s King Tide on sensitive habitat and infrastructure.  Open to the public as well! Virginia Guhin, Education and Outreach Coordinator, Elkhorn Slough NERR, 831-728-2822
Southern California
King Tide Impact Science 11/24

7:30am – 8:30am

Santa Barbara’s East Beach, adjacent to the Mission Creek Estuary Bring a camera and come experience rising sea levels of the future by watching and documenting King Tide impacts. Jackie Hunt, Santa Barbara Museum of Natural History, Programs Coordinator

805-962-2526, ext 110

Urban Tides on Your Shore:

community based science


8:30 am

Long Beach, Belmont Shore. Meet at Leeway Sailing Center: 5437 E Ocean Blvd, Long Beach, CA 90803 Bring your camera and join USC Sea Grant for a walk around the Peninsula. We’ll chat about sea level rise, the benefits of natural shorelines, and how you can help contribute to the science. Linda Chilton, USC Sea Grant, Education Program Manager


Volunteers Needed All king tides dates Santa Barbara County and Northern Ventura County   Help photo-document King Tides in our community. Sign up to volunteer to monitor a beach near you! Jenna Driscoll, Watershed and Marine Program Associate, Santa Barbara Channelkeeper, 805-563-3377 x 5

New StoryMap Showcases King Tides Projects Around the World

We teamed up with our friends at NOAA’s Digital Coast to make this cool StoryMap, featuring King Tides projects from around the world.  Click here to check it out!


More King Tides — California King Tides Project Blog

Reach more updates about the diverse set of projects, outreach events and activities going on across the state.

Featured Media – Thank you Ocean Report Features King Tides