About
Borealis Radar · PublishedWhat is Borealis Radar?
Borealis Radar is a small, free companion for anyone who dreams of seeing the northern lights. It quietly watches the sky for you and answers one simple question: what are my chances of seeing the aurora tonight, right where I am?
There’s no login, no ads, and nothing to buy. Open it, glance at your score, and get back to watching the sky.
Why I built it
Aurora forecasts tend to be either overwhelming or vague. I wanted something kinder: a clear, honest answer for your exact spot, in the time it takes to look out the window.
So when the sky is about to put on a show, you’ll know it’s worth stepping outside — and when it isn’t, you can rest easy and try another night.
How it works
Behind the scenes, Borealis Radar keeps an eye on the things that decide whether the lights can be seen: how lively the sun has been, how dark your sky is, how bright the moon is shining, and whether clouds are standing in the way. It gently blends all of that into a single score and a plain-language verdict — no charts to decode, no jargon to learn.
A personal project
Borealis Radar is a labor of love, built and cared for by one person. If you’d like to say hello, share an idea, or help with translations, the Feedback button in the app comes straight to me.