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.  The pictures that you take help scientists and managers better plan for future flood risks, and give you a way to participate directly in the science that will drive decisions in your community.  Everyone is welcome to participate!

California King Tides Project organizers want to:

  • Engage Californians in a conversation about the future of our beloved coastal areas
  • Identify places that are currently vulnerable to flooding
  • Build a hyperlocal catalogue of images that can be used by everyone – artists, scientists, school groups, coastal planners –  to document, visualize, and communicate about coastal hazards

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.

2014/2015 King Tides Season

Dec 21, Dec 22, Dec 23, 2014
Jan 19, Jan 20, Jan 21, 2015
Feb 17, Feb 18, Feb 19, 2015

The next King Tides start February 17th!

February peak tide times for a few locations are listed in the table below. For additional locations, visit our Plan Your Shoot page or NOAA’s Tides and Currents website.




North Spit, Humboldt Bay February 17, 9:56am 7.95 ft
February 18, 10:48am 8.06 ft
February 19, 11:40am 7.97 ft
Rincon Point, Pier 22 1/2, San Francisco February 17, 10:02am 7.09 ft
February 18, 10:54am 7.15 ft
February 19, 11:47am 7.03 ft
Redwood City February 17, 10:45am 9.19 ft
February 18, 11:38am 9.03 ft
February 19, 12:32pm 9.21 ft
Elkhorn Slough Railroad Bridge February 17, 9:07am 6.41 ft
February 18, 9:58am 6.45 ft
February 19, 10:49am 628 ft
Newport Bay Entrance, Corona del Mar February 17, 7:29am 6.36 ft
February 18, 8:15am 646 ft
February 19, 9:01am 6.31 ft

Featured Media – Thank you Ocean Report Features King Tides