The society for people who love the sky
Welcome, artists, scientists, cloudspotters and dreamers. You've come to the right place!
Join the Cloud Appreciation Society or Sign Up a Friend
Today's Cloud-a-Day
Friday 3rd October 2025
Rick Sorensen (Member 1,434) noticed a golden sunrise light over the neighbourhood of Devils Lake, Oregon, US. The sky had been a dull grey, but the morning rays soon lit up the clouds, and bright yellow eyelashes appeared to brush across …
Cloud of the Month
October 2025
Download Our Free CloudSpotter App
Discover the wonders of clouds with our CloudSpotter app.
Discover the amazing world of clouds with your pocket guide to the wonders of the sky and have your spottings verified as you build a collection of clouds.
Our CloudSpotter app will teach you how to spot 58 different cloud formations and optical effects, from the common ones like Cumulus clouds and rainbows to rare ones like the fleeting fluctus cloud or the hard to spot circumzenithal arc. Learn what makes each formation special with expert text from the Cloud Appreciation Society and stunning reference photographs by our app users around the world.
Build up your own Collection of spottings and use our innovative tools to find out what type of clouds or optical effects you’ve spotted. See New Spottings by other users around the world and say (with our help) if you think they got the clouds right. CloudSpotter can even analyse your image and say what cloud types it thinks you’ve spotted. Becoming an expert cloudspotter has never been easier or more fun!
Cloudspotting for Beginners
Shortlisted for the 2025 Wainwright Prize (Children’s Non-fiction)
A collaboration with award-winning illustrator William Grill, Cloudspotting for Beginners is a stunning introduction to clouds and the sky. We are very proud of this beautiful hardback book, which has been shortlisted for the prestigious Wainwright Prize (Children’s Non-fiction) for nature writing. Charming, uplifting, and easy to understand for all ages, Cloudspotting for Beginners will inspire anyone curious about clouds to look up at the sky with a new understanding and appreciation.
The 2025 Memory Cloud Atlas
Once a year, on Cloud Appreciation Day in September, 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.
These individual moments are brought together in the Memory Cloud Atlas, a global archive of sky photos and feelings — a lasting record of people around the world pausing to reflect on the atmosphere we all share.
In 2025, Cloud Appreciation Day took place on Friday, September 12th. The Memory Cloud Atlas was open for contributions on that day only.
New from our Members
A Survival Kit for the Imagination
Our downloadable lesson plans and resources for schools and homeschools teaching about the sky.
News
What Thanks Would You Give to the Clouds?
“Consolation of Clouds” by Robin Boord
