{"id":17164,"date":"2026-05-25T14:33:53","date_gmt":"2026-05-25T09:03:53","guid":{"rendered":"https:\/\/johnsonfrancis.org\/techworld\/?p=17164"},"modified":"2026-05-25T14:33:54","modified_gmt":"2026-05-25T09:03:54","slug":"the-peak-of-solar-cycle-25","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/techworld\/the-peak-of-solar-cycle-25\/","title":{"rendered":"The Peak of Solar Cycle 25"},"content":{"rendered":"<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/8pe-9Fzf4L8?si=HPKhc81rF15znIWX\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n\n<h3 class=\"wp-block-heading\">The Peak of Solar Cycle 25<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The definitive peak\u2014or &#8220;solar maximum&#8221;\u2014of <a href=\"https:\/\/www.forbes.com\/sites\/jamiecartereurope\/2026\/05\/24\/scientists-warn-the-sun-could-be-about-to-produce-a-superflare\/\" type=\"link\" id=\"https:\/\/www.forbes.com\/sites\/jamiecartereurope\/2026\/05\/24\/scientists-warn-the-sun-could-be-about-to-produce-a-superflare\/\">Solar Cycle 25 occurred in <strong>October 2024<\/strong><\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At its peak, the cycle reached a maximum smoothed sunspot number of roughly <strong>161<\/strong>.<sup><\/sup> The highest un-smoothed (raw) monthly sunspot count happened slightly earlier, in August 2024, hitting a count of 216.<sup><\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Key Details About the Cycle 25 Maximum<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Beating Expectations:<\/strong> Solar Cycle 25 proved to be significantly more active than scientists originally forecasted. Back in 2019, the official Solar Cycle Prediction Panel projected a relatively mild cycle peaking around July 2025 with a maximum sunspot number of only 115.<\/li>\n\n\n\n<li><strong>Arriving Early:<\/strong> Because the sun&#8217;s magnetic activity ramped up much faster and stronger than anticipated, the solar maximum arrived earlier than the initially predicted late-2025 window. NASA and NOAA officially confirmed the sun was in its peak maximum phase in mid-to-late 2024.<\/li>\n\n\n\n<li><strong>How the Peak is Confirmed:<\/strong> The exact peak month of any solar cycle is always declared in hindsight. Astronomers calculate it using a 13-month &#8220;smoothed&#8221; sunspot average (which requires data from six months before and six months after a given month). Because of this formula, the true mathematical peak of October 2024 could only be definitively confirmed well into 2025 once solar activity had shown a consistent downward trend.<\/li>\n\n\n\n<li><strong>The Downward Slope:<\/strong> While the sun has passed its primary peak, space weather events like solar flares and coronal mass ejections (CMEs) often remain elevated for a year or two following a maximum. Cycle 25 will now continue to gradually wind down, with the next solar minimum expected around <strong>2030<\/strong>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The Peak of Solar Cycle 25 The definitive peak\u2014or &#8220;solar maximum&#8221;\u2014of Solar Cycle 25 occurred in October 2024. At its peak, the cycle reached a maximum smoothed sunspot number of roughly 161. The highest un-smoothed (raw) monthly sunspot count happened slightly earlier, in August 2024, hitting a count of 216. Key Details About the Cycle [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":17165,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-17164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amateur-radio-ham-radio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The Peak of Solar Cycle 25 - Johnson&#039;s Techworld<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/techworld\/the-peak-of-solar-cycle-25\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Peak of Solar Cycle 25 - Johnson&#039;s Techworld\" \/>\n<meta property=\"og:description\" content=\"The Peak of Solar Cycle 25 The definitive peak\u2014or &#8220;solar maximum&#8221;\u2014of Solar Cycle 25 occurred in October 2024. At its peak, the cycle reached a maximum smoothed sunspot number of roughly 161. The highest un-smoothed (raw) monthly sunspot count happened slightly earlier, in August 2024, hitting a count of 216. Key Details About the Cycle [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/techworld\/the-peak-of-solar-cycle-25\/\" \/>\n<meta property=\"og:site_name\" content=\"Johnson&#039;s Techworld\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-25T09:03:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-25T09:03:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/techworld\/wp-content\/uploads\/2026\/05\/The-Peak-of-Solar-Cycle-25.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1203\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/the-peak-of-solar-cycle-25\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/the-peak-of-solar-cycle-25\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"headline\":\"The Peak of Solar Cycle 25\",\"datePublished\":\"2026-05-25T09:03:53+00:00\",\"dateModified\":\"2026-05-25T09:03:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/the-peak-of-solar-cycle-25\\\/\"},\"wordCount\":251,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/#\\\/schema\\\/person\\\/6201c843e80ccd3578e6196b1d007027\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/the-peak-of-solar-cycle-25\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/The-Peak-of-Solar-Cycle-25.jpg\",\"articleSection\":[\"Amateur Radio (Ham Radio)\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/the-peak-of-solar-cycle-25\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/techworld\\\/the-peak-of-solar-cycle-25\\\/\",\"name\":\"The Peak of Solar Cycle 25 - 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