Lake sturgeon can live beyond a human lifetime, travel hundreds of miles, and grow longer than many people are tall. The species belongs to a lineage at least 150 million years old and lends its name to August’s full moon.
This year’s Sturgeon Moon will reach full phase at 11:18 p.m. CT on August 27, 2026, according to The Old Farmer’s Almanac.
During a full moon, the moon appears opposite the sun in Earth’s sky, bringing nearly all of its illuminated face into view. According to NASA, a full moon generally rises around sunset, sets around sunrise, and can appear full for several nights. Viewers should therefore see a nearly round moon on both Thursday and Friday.
Lunar eclipses can occur only during a full moon, but the moon’s tilted orbit prevents one from happening every month. On August 27, 2026, a partial eclipse will begin at 9:34 p.m. CT and peak at 11:13 p.m. CT, only five minutes before the Sturgeon Moon reaches full phase.
At the peak, about 96 percent of the moon’s visible disk will lie inside Earth’s umbra, the darkest part of its shadow, according to NASA. Only a narrow portion will remain brightly illuminated, while much of the shadowed moon may appear coppery.
Explore All OptionsWhy Is August’s Full Moon Called the Sturgeon Moon?
The moon’s nickname points toward the inland waters of eastern and central North America. The Old Farmer’s Almanac connects it to the lake sturgeon of the Great Lakes and Lake Champlain, where the fish once provided an important seasonal food source.
Late-summer sturgeon catches became associated with this point in the lunar cycle. However, Sturgeon Moon is a cultural and seasonal name, not an astronomical classification. The moon does not develop any special physical characteristics because of the nickname.
Although popular accounts frequently describe the Sturgeon Moon as a Native American name, Indigenous peoples did not share a single universal lunar calendar. Communities developed names connected to the foods, weather, and environmental changes they encountered where they lived.
According to Ojibwe.net, a resource documenting language from several Ojibwe communities, names associated with August include Ricing Moon, Blueberry Moon, Raspberry-Picking Moon, and Blackberry Moon. These variations reflect what different communities harvested and observed at that time of year.
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Meet the Fish Behind the Moon
Lake sturgeon are among North America’s largest and longest-lived freshwater fish. Hard, bony plates cover their bodies, while barbels around their mouths help them search lake and river bottoms for food.
Their slow pace of life leaves them vulnerable to environmental change. According to the U.S. Fish and Wildlife Service, an individual may spend its first 10 to 30 years growing before reproducing for the first time. Mature sturgeon also spawn intermittently rather than returning every year.
These traits made it difficult for populations to withstand commercial harvesting during the late 1800s and early 1900s. Dams created another problem by preventing adults from reaching the stretches of river where they reproduce. Pollution and other forms of habitat degradation added further pressure.
As sturgeon disappeared, communities also lost access to a fish that had provided food and held cultural importance for generations.
Helping Lake Sturgeon Return
Recovery has begun in some places, though it is moving slowly because lake sturgeon can take decades to mature. According to the Fish and Wildlife Service, hatchery releases and habitat restoration have returned sturgeon to several waterways and supported existing populations.
On August 27, 2026, look up for the coppery Sturgeon Moon — but according to folklore recorded by The Old Farmer’s Almanac, you may want to wait until another night to wash any new clothes, or they might wear out too soon.
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Article Sources
Our writers at Discovermagazine.com use peer-reviewed studies and high-quality sources for our articles, and our editors review for scientific accuracy and editorial standards. Review the sources used below for this article:
- This article references information from The Old Farmer’s Almanac: Full Sturgeon Moon August 2026: Meaning, Date, and How to See It
- This article references information from NASA: Moon Phases
- This article references information from NASA: August 27-28, 2026 Deep Partial Lunar Eclipse
- This article references information from NASA: The Moon & Eclipses
- This article references information from ojibwe.net: Moons & Days
- This article references information from the U.S. Fish and Wildlife Service: Acipenser fulvescens
