--- title: Friday the 13th Full Moon Is an Extremely Rare Occurrence description: September's full moon, known as the Harvest Moon,, will be visible shortly before midnight on Friday the 13th for many Americans. canonical: https://time.com/5673236/full-harvest-moon-friday-13th/ author: Gina Martinez article:opinion: false article:content_tier: free article:published_time: 2019-09-12T19:04:40.000Z article:modified_time: 2026-02-24T07:20:37.709Z article:section: Science og:title: There's a Full Moon on Friday the 13th for Most of the U.S. The Next One Isn't for Another 30 Years og:description: September's full moon, known as the Harvest Moon,, will be visible shortly before midnight on Friday the 13th for many Americans. og:url: https://time.com/5673236/full-harvest-moon-friday-13th/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blte79cc21505f115fb/6988e0a1bc6cfc85f23e3612/gettyimages-607442848.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 4204 og:image:height: 2365 og:image:alt: A full harvest moon rises behind Lower Manhattan and One World Trade Center in New York City og:type: article twitter:card: summary_large_image twitter:title: There's a Full Moon on Friday the 13th for Most of the U.S. The Next One Isn't for Another 30 Years twitter:description: September's full moon, known as the Harvest Moon,, will be visible shortly before midnight on Friday the 13th for many Americans. twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blte79cc21505f115fb/6988e0a1bc6cfc85f23e3612/gettyimages-607442848.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # There's a Full Moon Due on Friday the 13th for Most of the U.S. The Next One Isn't for Another 30 Years > Sponsored content. 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Future Proof is TIME's weekly climate and energy newsletter, written by senior correspondent Justin Worland. It connects the energy transition to the decisions reshaping business, technology, policy and markets. #### Where can I follow the energy transition as a business story? Future Proof covers climate and energy as an economic and business story rather than only an environmental one. It publishes every Friday and is free at time.com/newsletters. #### Who writes Future Proof? Justin Worland, a senior correspondent at TIME and an award-winning climate journalist, writes Future Proof. #### Is Future Proof free? Yes. Future Proof is free at time.com/newsletters. by [Gina Martinez](https://time.com/author/gina-martinez/) ## Gina Martinez Sep 12, 2019 7:04 PM UTC  A full harvest moon rises behind Lower Manhattan and One World Trade Center in New York City on September 16, 2016 as seen from Newark, NJ. A full harvest moon rises behind Lower Manhattan and One World Trade Center in New York City on September 16, 2016 as seen from Newark, NJ. Photo by Gary Hershorn—Getty by [Gina Martinez](https://time.com/author/gina-martinez/) ## Gina Martinez Sep 12, 2019 7:04 PM UTC The next [full moon](https://time.com/5624516/july-full-buck-moon/) is set to make an appearance on the [most ominous date on the calendar](https://time.com/3708916/friday-the-13th/) this month. A September full moon, also known as a “Harvest Moon,” will be visible to many Americans this Friday the 13th. According to [NASA](https://solarsystem.nasa.gov/news/1057/september-2019-the-next-full-moon-is-the-harvest-moon/), the moon will be full early Saturday morning, Sept. 14, at 12:33 a.m. EST, but for those who live in the Central, Mountain and Pacific time zones, the full moon will be visible shortly before midnight on Friday the 13th. NASA says that the moon will appear full for about three days centered around this time — from Thursday night through Sunday morning. [A full moon on Friday the 13th is an extremely rare occurrence](https://www.farmersalmanac.com/friday-13th-harvest-moon-36362), according to the _Farmers’ Almanac._ It reports that this will be the first full moon visible across the U.S. on Friday the 13th since Oct. 13, 2000. The next one isn’t expected to happen again for another 30 years—on Aug. 13, 2049. On average, the _Farmers’ Almanac_ says a Friday the 13th full moon is a 20-year occurrence. As you might expect, September’s full moon is called the “[Harvest Moon](https://www.almanac.com/content/what-harvest-moon)” because it comes at the peak of harvest season. According to NASA, this moon has historically been especially helpful to farmers who relied on moonlight during harvest season. Although the moon traditionally rises about 50 minutes later each night leading up to a full moon, in the days leading up to September’s full moon it generally rises just 25 to 30 minutes later across the northern U.S., and only 10 to 20 minutes later for much of Canada and Europe. The moon will also appear about 14% smaller because of its distance from Earth, which led to the September full moon’s additional nickname: “Micro Moon,” according to the _Almanac_. “Micro Moon” is a sort of opposite phenomenon to a “[Supermoon](https://time.com/5530480/super-snow-moon-2019/),” which makes the Moon appear larger in the night sky because it is orbiting especially close to Earth. September’s full moon nearly lines up with the point when the moon’s orbit is farthest from Earth—a point known as “apogee,” which the _Almanac_ says is a distance of about 252,100 miles away. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/5673236/full-harvest-moon-friday-13th/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/5673236/full-harvest-moon-friday-13th/"},"headline":"There's a Full Moon Due on Friday the 13th for Most of the U.S. The Next One Isn't for Another 30 Years","datePublished":"2019-09-12T19:04:40.000Z","dateModified":"2026-02-24T07:20:37.709Z","description":"September's Harvest Moon is also nicknamed the Micro Moon","url":"https://time.com/5673236/full-harvest-moon-friday-13th/","keywords":["Space","onetime"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blte79cc21505f115fb/6988e0a1bc6cfc85f23e3612/gettyimages-607442848.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Gina Martinez","jobTitle":null,"url":"https://time.com/author/gina-martinez/"}],"articleSection":"Science","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blte79cc21505f115fb/6988e0a1bc6cfc85f23e3612/gettyimages-607442848.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"A full harvest moon rises behind Lower Manhattan and One World Trade Center in New York City","caption":"A full harvest moon rises behind Lower Manhattan and One World Trade Center in New York City","creditText":"Photo by Gary Hershorn—Getty","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/science/","name":"Science"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/space/","name":"Space"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/5673236/full-harvest-moon-friday-13th/","name":"There's a Full Moon Due on Friday the 13th for Most of the U.S. The Next One Isn't for Another 30 Years"}}]}] ```