California King Tides

California King Tides Engaging the public through photography on coastal flooding and sea level rise.

King Tides are high tides that occur when the gravitational pull of the sun and the moon are in alignment. When these tides happen at the same time as stormy weather (as is often the case during California’s winters), water levels can rise even higher. These high water levels can show us how higher sea levels due to climate change might impact our communities in the future. Photos taken during the

King Tides document impacts to private property, public infrastructure, and wildlife habitat across the state. We want to continue documenting what happens during extreme high tides, so we invite you to participate!

07/16/2026
Mark your calendars! 🗓️ 🌊
06/18/2026

Mark your calendars! 🗓️ 🌊

What an interesting interval of observing California King Tides! Were you able to safely capture photos of what the high...
01/06/2026

What an interesting interval of observing California King Tides! Were you able to safely capture photos of what the higher tides looked like next to roads, bridges, buildings, and other infrastructure? If the answer is yes, please upload to the California King Tides Project map. See links or navigate to: https://survey123.arcgis.com/share/046c76a1ffa14902bb8ab2d6bb874456

Image: A road is flooded. A Road Closed sign warns traffic.
Elkhorn Road in Watsonville during January 3, 2026

01/05/2026
01/05/2026

Heavy rain and high tides believed to be the most severe in two decades caused flooding in parts of Northern California on Saturday, prompting road closures and rescues of people trapped in cars.
https://cnn.it/49u3cwO

01/05/2026
01/02/2026

Reminder: Don't drive into water. Safety first.

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Redwood City, CA
94059, 94061–94065

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