International Cloud Appreciation Day is September 12
View at EarthSky Community Photos. | Cecille Kennedy captured this image on August 19, 2025, in Oregon. Cecille wrote: “A patch of cirrocumulus clouds appeared in the late afternoon. Each cirrocumulus element in the patch is referred to as a cloudlet. Cirrocumulus clouds are sometimes called “mackerel clouds” because their appearance resembles the patterns on a mackerel fish’s skin when they are arranged in rows with a rippled or patchy appearance.” Thank you, Cecille! And today, September 12, 2025, is International Cloud Appreciation Day.
Happy Cloud Appreciation Day!
September 12, 2025, is Cloud Appreciation Day. The international online event is organized by the Cloud Appreciation Society, which has more than 60,000 members in 120 countries. Their Memory Cloud Atlas website goes live today, Friday September 12, at one minute after midnight your local time. It’s a place where anyone around the world can upload an image of their sky on Cloud Appreciation Day, locate themselves on a map and share what they feel about the sky and the clouds.
According to the Cloud Appreciation Society:
Once a year, on Cloud Appreciation Day, people from around the world pause to look up. They capture their sky and describe how it makes them feel, creating a shared, emotional snapshot of our planet’s atmosphere. Cloud Appreciation Day is on Friday September 12th, 2025, when anyone anywhere can take a photo of their sky and submit it for free to our Memory Cloud Atlas.
Last year thousands of images were uploaded to the 2024 atlas and can be viewed here. The 2023 atlas can be viewed here. Also, the images uploaded in 2022 can be viewed here.
Enjoy some beautiful clouds from our own EarthSky Community Photos below, and also read a book review of Gavin Pretor-Pinney’s book “A Cloud a Day” in our column Media we love.
Cloud gallery from EarthSky Community members
View at EarthSky Community Photos. | Lionel Huizar captured this image on August 31, 2025, from El Paso, Texas, and said “storm coming.” Thank you, Lionel!View at EarthSky Community Photos. | Ross Stone captured this image in California on July 31, 2024. Ross wrote: “When I saw this gigantic cumulonimbus cloud I had to pull off to the side of the road and take out my camera. I absolutely love the summertime clouds.” Thank you, Ross!View at EarthSky Community Photos. | Sally Mesarosh in Mesa, Arizona, captured this photo on September 13, 2024, and wrote: “This photo was taken during a very intense monsoon storm in Mesa, Arizona. Lightning continually flashed behind clouds.” Thank you, Sally!View at EarthSky Community Photos. | Alexander Krivenyshev captured mammatus clouds during a storm over New York on August 4, 2024. Thank you, Alexander.
More cloud photos from EarthSky Community members
View at EarthSky Community Photos. | Jean-Baptiste Feldmann in Gleizé, France, captured these noctilucent – or night-shining – clouds on July 13, 2024. Jean-Baptiste wrote: “Impressive festival of noctilucent clouds a little before 5 in the morning, while I was finishing my planetary observations with the telescope. I had never seen noctilucents with such intensity before. A real treat!” Thank you, Jean-Baptiste!View at EarthSky Community Photos. | Lina Tomlin in Texarkana, Texas, caught these mammatus clouds on April 29, 2024. Lina wrote: “Stepped outside and my jaw dropped. I loved watching this massive storm cell roll by. I saw more ‘bubble’ clouds appear and as the sun went down they lit up. I’ve never been this close to clouds like that. Thrilling!” Thank you, Lina!View at EarthSky Community Photos. | Osama Fathi in Giza, Egypt, captured this image on February 2, 2023, of the crescent moon, Jupiter and Venus peeking through the clouds above the Great Pyramid of Giza. Osama named this photo “Cosmic love above the pyramids.” Thank you, Osama!
Additional cloud gallery from EarthSky Community members
Of course, there are star clouds in the Milky Way. View at EarthSky Community Photos. | Mary Ditchie near Santa Margarita, California, captured this image on August 11, 2023. Mary wrote: “The town of Santa Margarita glows on the horizon through some clouds. The night sky was very clear there and the Milky Way showed up brilliantly next to an old oak tree.” Thank you, Mary! How many stars can you see in the night sky? Good luck counting all those!View at EarthSky Community Photos. | Noel Bowman in Kent, Washington, captured this photo of noctilucent clouds on June 25, 2023. Noel wrote: “Shot at Lake Meridian after sunset. Fairly wide display as well.” Thank you, Noel!View at EarthSky Community Photos. | Patricia Stush in Westwood, New Jersey, captured this image on June 21, 2023. Patricia wrote: “Summer solstice sunset.” Thank you, Patricia! Clouds naturally enhance the beauty of a sunset.
Bottom line: Cloud Appreciation Day is September 12, 2025. Enjoy this gallery of beautiful clouds and share your own with the Cloud Appreciation Society and us!
View at EarthSky Community Photos. | Cecille Kennedy captured this image on August 19, 2025, in Oregon. Cecille wrote: “A patch of cirrocumulus clouds appeared in the late afternoon. Each cirrocumulus element in the patch is referred to as a cloudlet. Cirrocumulus clouds are sometimes called “mackerel clouds” because their appearance resembles the patterns on a mackerel fish’s skin when they are arranged in rows with a rippled or patchy appearance.” Thank you, Cecille! And today, September 12, 2025, is International Cloud Appreciation Day.
Happy Cloud Appreciation Day!
September 12, 2025, is Cloud Appreciation Day. The international online event is organized by the Cloud Appreciation Society, which has more than 60,000 members in 120 countries. Their Memory Cloud Atlas website goes live today, Friday September 12, at one minute after midnight your local time. It’s a place where anyone around the world can upload an image of their sky on Cloud Appreciation Day, locate themselves on a map and share what they feel about the sky and the clouds.
According to the Cloud Appreciation Society:
Once a year, on Cloud Appreciation Day, people from around the world pause to look up. They capture their sky and describe how it makes them feel, creating a shared, emotional snapshot of our planet’s atmosphere. Cloud Appreciation Day is on Friday September 12th, 2025, when anyone anywhere can take a photo of their sky and submit it for free to our Memory Cloud Atlas.
Last year thousands of images were uploaded to the 2024 atlas and can be viewed here. The 2023 atlas can be viewed here. Also, the images uploaded in 2022 can be viewed here.
Enjoy some beautiful clouds from our own EarthSky Community Photos below, and also read a book review of Gavin Pretor-Pinney’s book “A Cloud a Day” in our column Media we love.
Cloud gallery from EarthSky Community members
View at EarthSky Community Photos. | Lionel Huizar captured this image on August 31, 2025, from El Paso, Texas, and said “storm coming.” Thank you, Lionel!View at EarthSky Community Photos. | Ross Stone captured this image in California on July 31, 2024. Ross wrote: “When I saw this gigantic cumulonimbus cloud I had to pull off to the side of the road and take out my camera. I absolutely love the summertime clouds.” Thank you, Ross!View at EarthSky Community Photos. | Sally Mesarosh in Mesa, Arizona, captured this photo on September 13, 2024, and wrote: “This photo was taken during a very intense monsoon storm in Mesa, Arizona. Lightning continually flashed behind clouds.” Thank you, Sally!View at EarthSky Community Photos. | Alexander Krivenyshev captured mammatus clouds during a storm over New York on August 4, 2024. Thank you, Alexander.
More cloud photos from EarthSky Community members
View at EarthSky Community Photos. | Jean-Baptiste Feldmann in Gleizé, France, captured these noctilucent – or night-shining – clouds on July 13, 2024. Jean-Baptiste wrote: “Impressive festival of noctilucent clouds a little before 5 in the morning, while I was finishing my planetary observations with the telescope. I had never seen noctilucents with such intensity before. A real treat!” Thank you, Jean-Baptiste!View at EarthSky Community Photos. | Lina Tomlin in Texarkana, Texas, caught these mammatus clouds on April 29, 2024. Lina wrote: “Stepped outside and my jaw dropped. I loved watching this massive storm cell roll by. I saw more ‘bubble’ clouds appear and as the sun went down they lit up. I’ve never been this close to clouds like that. Thrilling!” Thank you, Lina!View at EarthSky Community Photos. | Osama Fathi in Giza, Egypt, captured this image on February 2, 2023, of the crescent moon, Jupiter and Venus peeking through the clouds above the Great Pyramid of Giza. Osama named this photo “Cosmic love above the pyramids.” Thank you, Osama!
Additional cloud gallery from EarthSky Community members
Of course, there are star clouds in the Milky Way. View at EarthSky Community Photos. | Mary Ditchie near Santa Margarita, California, captured this image on August 11, 2023. Mary wrote: “The town of Santa Margarita glows on the horizon through some clouds. The night sky was very clear there and the Milky Way showed up brilliantly next to an old oak tree.” Thank you, Mary! How many stars can you see in the night sky? Good luck counting all those!View at EarthSky Community Photos. | Noel Bowman in Kent, Washington, captured this photo of noctilucent clouds on June 25, 2023. Noel wrote: “Shot at Lake Meridian after sunset. Fairly wide display as well.” Thank you, Noel!View at EarthSky Community Photos. | Patricia Stush in Westwood, New Jersey, captured this image on June 21, 2023. Patricia wrote: “Summer solstice sunset.” Thank you, Patricia! Clouds naturally enhance the beauty of a sunset.
Bottom line: Cloud Appreciation Day is September 12, 2025. Enjoy this gallery of beautiful clouds and share your own with the Cloud Appreciation Society and us!
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