Solwind
Aurora forecast · iPhone & Apple Watch
Know when to look up.
Solwind turns the solar wind, the auroral oval, clouds, darkness and the moon into one number for the sky where you are. When it isn't worth going out, it says so.
Tonight's chance
One honest number for your sky.
Not a global Kp index you have to decode. Solwind scores 0 to 100 for your spot, hour by hour, and the number already knows about your clouds, your darkness and the moon.
- Clouds count. A strong storm behind thick cloud is still a quiet night, and Solwind tells you plainly.
- Hour by hour. See when the chance peaks tonight and when it is dark enough to matter.
- Where to look. Direction and best time, like "look north around 6:13 am".
Smart alerts
A tap only when it's worth it.
Solwind watches the sky through the night and alerts you when it is happening, dark and clear where you are, not every time a number moves somewhere else.
- Look now. When it is happening above you right now.
- Spotted nearby. When people around you report seeing it.
- Storm incoming. A day or two ahead of strong storms.
- Quiet hours. Sleep through small nights; wake only for the big ones if you want.
See the whole oval
Map, globe and the sun, live.
Follow the auroral oval on a live map with satellite clouds, spin the globe north or south, and check what the sun is sending our way.
Always within reach
Wrist, Lock Screen, Dynamic Island.
Glance at tonight's chance on Apple Watch, keep the score on your Lock Screen, and let a Live Activity follow the night for you.
- Apple Watch app with complications for your watch face.
- Home and Lock Screen widgets with tonight's chance and the best time.
- Live Activity that updates through the night and steps aside when it's over.
Privacy
No account. No name. Just the sky.
Approximate by design
Your places are snapped to a quarter-degree grid on your phone (about 28 km north to south) before they are sent.
No ads, no trackers
No advertising, no third-party analytics, nothing sold. This website loads nothing from anyone else either.
Anonymous sightings
Reports are rounded to about 11 km and disappear after a week.
Free and Pro
Free to start. Pro for the nights you don't want to miss.
Free
- Tonight's chance, hour by hour, for your place
- Live map, globe and solar wind
- Report sightings
Solwind Pro Pro
- Smart alerts, only when it's dark and clear
- Next 3 nights, hour by hour
- Widgets, Live Activity and Apple Watch
- Sightings near you, the moment it starts
- Unlimited places: home, cabin and the trip
Subscriptions are billed through your Apple ID and can be cancelled any time in Settings. See the terms.
Where the numbers come from