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California Invites Public Participation in Documenting King Tides

12/2/2025, 3:49:16 PM

Understanding King Tides and Their Significance

The California Coastal Commission is actively encouraging beachgoers to document this winter's king tides, which are among the highest tides of the year. King tides occur when the moon, earth, and sun align, particularly during a perigee, when the moon is closest to the earth. These events typically happen three to four times annually and result in significantly elevated tides, providing a visual representation of potential future coastal conditions amid rising sea levels.

Upcoming King Tide Events

In San Diego, the king tides are expected to manifest on December 4, 5, and 6, as well as January 2 and 3. The first high tide is predicted to reach 7.06 feet at La Jolla on December 4 at 7:34 a.m., while National City anticipates a peak of 7.82 feet at 8:28 a.m. on December 5, marking the highest tide prediction in the region. These tides are crucial for scientists, as they illustrate the potential flooding and erosion risks coastal areas may face due to climate change, with global sea levels having risen 8 to 9 inches since 1880 and California expected to see an increase of up to 1.2 feet by 2050.

Public Engagement and Data Collection

The California Coastal Commission is requesting that individuals photograph the high tidal waters and their impacts, particularly in areas prone to flooding and erosion. Participants are encouraged to submit their images to the California King Tides Project, which aims to enhance understanding of how king tides can inform future coastal management and planning.

Safety Considerations for Participants

While documenting the king tides, the commission advises beachgoers to exercise caution. Participants should be aware of slippery rocks and the potential for large waves, ensuring they maintain a safe distance from the water. Additionally, visitors are reminded to respect local wildlife, particularly shorebirds that may be present in areas above the tideline.

Broader Implications of King Tides

The documentation of king tides serves not only as a scientific endeavor but also as a community engagement initiative. By involving the public, the California Coastal Commission aims to foster greater awareness of the impacts of climate change on coastal ecosystems and infrastructure. The data collected through this project will contribute to a more comprehensive understanding of coastal dynamics and inform future environmental policies.

Verbatim Quotes

  • “Scientists say that king tides can give the public an idea of the flood and erosion risks in coastal areas as sea levels continue to rise with climate change.” — California Coastal Commission
  • “Avoid turning away from the ocean so you can keep an eye on its movements.” — California Coastal Commission

This initiative not only highlights the immediate effects of king tides but also emphasizes the importance of community involvement in addressing climate-related challenges facing California's coastline.