About
Find the sun. Sit down.
Sunsipper tells you which terraces in Amsterdam are in the sun right now — and which ones will still be sunny when you get there.
What it does
You're out, the sky's doing its thing, and you want a drink in the sun in the next fifteen minutes. Sunsipper is for exactly that moment. Open the map, see which terraces are lit, scrub the time slider to see where the sun moves next, and walk to a seat that'll still be golden when you sit down.
No reviews to wade through, no trip to plan. Just: where's the sun, and how long does it last here?
Why you can trust it
Most “sunny spot” tips are someone's guess. Ours aren't. Sunsipper works from official City of Amsterdam open data for where terraces actually are and how tall the buildings around them stand, and from precise astronomical sun math for where the light falls across the day. The shadow a building throws at 17:00 in June is geometry, not opinion — so that's what we compute.
It means the answer is grounded in the real city: real terrace outlines, real building heights, the real path of the sun.
Honest about the limits
We show modeled sun estimates — very good ones, but estimates. We don't do weather, so a cloud can always overrule us, and we don't yet account for trees, parasols, or that one awning. Treat Sunsipper as a sharp head start, not a promise. Your own eyes get the final say.
Where we are
Right now Sunsipper is Amsterdam only. It's where the open data is best and where we can get the details right. More cities may follow once each one earns the same level of trust.
Data & sources
Sunsipper is built on open data. Terrace outlines and permits come from City of Amsterdam open data; building heights from 3DBAG (TU Delft / 3DGI); venue details from OpenStreetMap contributors; and the weather forecast from Open-Meteo.
Made with ♥ in Amsterdam. Got a terrace we're missing or getting wrong? Tell us.