Nov. 19 2025 | Abbi Duhart | News Editor
King tides — formally known as perigean spring tides — made an appearance along the Oregon coast Nov. 4-7. These tides occur when a full or new moon reaches perigee, when the moon is at the closest point in orbit to the Earth, and when the sun, moon and Earth are in alignment. The combination of these two things creates a strong gravitational pull on the ocean, which leads to higher-than-normal tides that push waves the furthest upshore. In general, king tides are the highest level of tides that can be predicted.
Scientists have pointed out factors that contribute to these recent king tide occurrences being more drastic and deadly than others. Over the past decade, sea levels have continued to rise drastically from climate change. The continually higher sea levels cause king tides to reach a higher point on the shore. Additionally, the coast has faced turbulent weather, with large wind and rain storms causing harsher conditions in the ocean. The high levels of wind cause water to swell, intensifying the waves and making the king tides stronger. Normally, king tides aren’t as dangerous, but the combination of all these factors made the tides that occurred recently the most dangerous that have happened.
Newport, Oregon was hit the worst, and was reported to have tides that rose higher than 10 feet. Oregon scientists discussed the high possibility of erosion and flooding. Because the tides were predicted to be so harsh, it was likely that the tides coming so far into the shore would create erosion along the sand and rocks. The tides combined with the stormy weather were a big indicator for flooding as well, potentially even up to U.S. Route 101. Scientists are using the king tide occurrences to observe and document the impacts rising sea levels have on erosion and flooding.
The king tides often attract tourists, whether it be for photography or just viewing. While watching them can be an amazing opportunity, residents are advised by Oregon scientists to remember the dangers they create. Those who go are encouraged to watch from a safe distance and area, and remember to never turn their back on the ocean.
Many residents enjoy visiting the beaches after the tides occur as well, because the high tides often bring in copious amounts of sea treasures for collectors. If anyone likes sea combing, they are recommended to visit right after the king tides because they often yield the best finds. For those who missed these occurrences of the king tides and would like the opportunity to go see them, the tides will appear again Dec. 4-6, 2025, and Jan. 1-4, 2026.
Contact the author at howlnews@mail.wou.edu
