King Tides: A Glimpse into Our Future
Become a Citizen Scientist! Help Document High Tides for the April 2025 King Tide
What Are King Tides?
On April 27, 2025, a New Moon Supermoon—the closest of the year at 221,917 miles (357,141 km) from Earth—will occur. Beginning April 28, a three-day period of extreme high and low tides known as Perigean Spring Tides (or King Tides) will follow. These exceptionally high tides happen when a full or new moon aligns with the moon’s closest approach to Earth. While natural, King Tides offer a glimpse into future sea level rise driven by climate change.
Why Do They Matter in Newburyport?
Flooding Impacts – Streets, parks, and homes in low-lying areas may experience temporary flooding.
Future Sea Levels – Today’s King Tides resemble the everyday tides of tomorrow if sea levels continue to rise.
Community Science – Documenting these tides helps scientists and policymakers prepare for coastal challenges.
See It for Yourself
King Tides are predictable. Here are the dates for the Perigean Spring Tides in Newburyport:
📅 April 28-April 30 2025Best Viewing Locations: Waterfront Park, Plum Island, Joppa Flats (click on map to enlarge)
How You Can Help
Take Photos: Capture King Tides in action and share them to raise awareness.
Log Data: Submit photos and observations to MyCoast app, click on the image to the right to download the app.Support Resiliency Efforts: Learn how Newburyport is adapting to coastal flooding. https://www.cityofnewburyport.com/resiliency
