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Life & fun · July 16, 2026

A map of cafes that are in the sun

I wanted to sit outside for coffee but there was no way to see which cafes are in the sun right now. So I built a map that shows which cafes, benches, and outdoor seats are in the sun vs. shade at any time of day. It ray-marches building shadows live in a WebGL shader over a MapLibre map. I also pre-index all places from OpenStreetMap into H3 hex cells and serve them as static JSON on Cloudflare R2, so the client just fetches the cells in view and no backend is needed. Feedback welcome, especially on shadow accuracy in your city. Currently only buildings and trees are taken into account when…

A map of cafes that are in the sun launched on July 16, 2026 with 8 votes, #2,235 of 24,623 launches that month and more than 75% of that year's launches.

Visit sunny.coffee ↗Alternativestop 9% of July 2026

What it does

Find cafes that are in the sun right now.

In the maker’s words, at launch

I wanted to sit outside for coffee but there was no way to see which cafes are in the sun right now. So I built a map that shows which cafes, benches, and outdoor seats are in the sun vs. shade at any time of day. It ray-marches building shadows live in a WebGL shader over a MapLibre map. I also pre-index all places…

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