Memory Cloud Atlas logo

The Memory Cloud Atlas

is created each year on Cloud Appreciation Day

Cloud Appreciation Day, which happens each year on the second Friday in September, is an internationally recognised day when people around the world spend a few moments with their heads in the clouds and share a photo of their skies to our Memory Cloud Atlas.

When adding their photo to the Atlas, contributors can also say how they feel about the sky that day. The Memory Cloud Atlas is open for contributions only on Cloud Appreciation Day itself. It then remains as an online resource for anyone who wants to explore the skies of the world. Besides the 2024 Memory Cloud Atlas, you can also explore the Atlas Archives from 2023 and 2022. In this way, the Atlas exists as a lasting testament to people coming together from different locations and cultures in appreciation of the sky, the most dynamic, evocative and poetic of nature’s displays.

The next Cloud Appreciation Day will be on Friday September 12th, 2025.

Cirrus fibratus spotted over Sydney, Australia by Tom Olson
Altocumulus at sunrise spotted over Kingston, Kent, England by Sue Hodgkins (Member 10,290)
Cirrus intortus spotted over Lompoc, California, US by Jeanette Brown
Altocumulus lenticularis spotted over Helena valley, Montana, US by Jana Walker (Member 54,383)
Anvil crawler lightning spotted over Visakhapatnam, India by Ashok Kolluru
Mamma spotted over Boulder, Colorado, US by Kyoko Saegusa
Stratocumulus spotted over Toronto, Ontario, Canada by Kristen-Rose DiMartino (Member 47,377)
Cumulus and Stratocumulus spotted at sunset over Zhejiang Province, China by 玮 徐 (Member 50,559)

ABOUT THE MEMORY CLOUD ATLAS

The Memory Cloud Atlas is a collaboration with artist Justin Wiggan that is open for contributions on Cloud Appreciation Day from anyone anywhere for free. Contributors can upload a photograph of their sky on the day and add some words about how the sky makes them feel.

Change the date in the header of the Memory Cloud Atlas to look back at cloudspotters’ contributions from past years:

RESOURCES FOR SCHOOLS

Our Cloud Appreciation Pack includes free lesson plans, resources and activities for schools and homeschools. We encouraged teachers to use the pack of resources to make Cloud Appreciation Day on Friday September 13th the focus of a week of lessons about the sky and clouds. The Atlas can be used as a resource to show young cloudspotters skies on the day all across the world.

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