The Sundaze app showing Paris at 18 degrees on a clear twilight evening, with the sun just under a cloud bank and the sea lit beneath it

Sundaze

Look up.

Sundaze is a weather app for iPhone that turns real conditions and forecasts into a living 3D sky, rendered in real time.

Download on the App Store
See how it works

The forecast is the sky.

Nothing in Sundaze is a recorded video. Cloud, light, rain, snow, wind, water and atmosphere are drawn on your iPhone, frame by frame, from the weather that is actually happening — and they keep changing as it does.

Sundaze showing Paris at 23 degrees, mild and partly cloudy, with sun rays through cumulus cloud
Paris, mild and partly cloudy
Sundaze showing Paris at 20 degrees with patchy rain nearby and a deep red sunset sky
Paris again, at sunset
Sundaze showing Tokyo at 29 degrees with smoky haze at night and a lit ocean liner on the horizon
Tokyo, hazy, after dark

Move through the day.

Swipe sideways and the sky runs forward: the light turns, the cloud thickens, the rain arrives. The same three days are there in numbers too — a day-by-day outlook and an hourly table, read under the sky they describe.

Sundaze three-day outlook for New York showing morning, afternoon and night temperatures for Friday, Saturday and Sunday
Three days, morning to night
Sundaze hourly table for Tokyo showing two-hourly temperature and feels-like values across the day
Hour by hour, with feels-like

Look closer. Then play.

Rare things pass through a real sky, so they pass through this one. Tap what you notice and it answers. What you find is kept as a card in your logbook — and a few of those finds are doors, opening onto small arcade games built out of the weather you are standing in. Or open the arcade any time from the game-controller button.

The Sundaze logbook in cards view: six holographic collectible cards in a grid — a match-3 board, a pinball table, a climb, a sunset, an ocean liner and a whale
Discoveries become cards
A pixel-art match-3 board of weather tiles — sun, moon, cloud, raindrop, snowflake and lightning — over a pixelated sky, with score, moves and target shown above
Cloudburst, matched out of weather
A pixel-art platform climb: a small figure jumps between floating rock shelves above clouds while the sea rises from below
Rising Tide, climbing the storm

Keep a piece of the sky.

Save any moment as a photo or a short video, with the place, the temperature and the hour written into it. Or change how the sky is painted altogether: loose watercolour, or eight-bit.

Sundaze in watercolour mode, the sky rendered as wet paint, with a colour wheel, brush tools and a palette of eight colours
Aquarelle
Sundaze rendering the sunset sky as large retro pixels
Eight-bit

Everything in Sundaze

Real weather, where you are

Live conditions for your location, eased in as they change. No account, no sign-in.

A sky rendered in 3D

Volumetric cloud, true sun and moon positions, terrain, sea, stars and a full day-to-night cycle.

Forecast you can scrub

Swipe through the hours, step by day, and read the full three-day and hourly tables.

Discoveries and cards

Hundreds of events and achievements, kept as holographic cards in the logbook.

Weather-built mini-games

Arcade cabinets made of what is in your own sky — a door crosses it, or the game-controller button opens them all.

Photo and video capture

Export the moment, stamped with the place, the temperature and the time.

The Sky Notes widget

Today's sky and today's reading, sitting on your Home Screen.

Sundaze Premium

One subscription for the full collection, video export, the widget, any city's sky and every mini-game.

The full three-day forecast is free.

Free, permanently

The complete living sky, the weather and the full three-day forecast where you are, your first trading card, one play of each mini-game every day, and photo export. No account. No sign-in.

Sundaze Premium

Adds the full event and card collection, video export, the Sky Notes widget on your Home Screen, the sky of any city in the world, and all the mini-games. Weekly or annual.

Subscriptions renew automatically until cancelled, and can be cancelled at any time in Settings. See the Terms of Use for the full detail.

Questions, answered.

What is Sundaze?

Sundaze is a 3D weather app for iPhone. It turns the real conditions and forecast where you are into a living sky, with volumetric cloud, true sun and moon positions, rain, snow, wind, sea and stars, rendered in real time on the device. Nothing in it is a recorded video.

Is Sundaze free?

Yes. Sundaze is free to download and free to use permanently. The free tier includes the complete living sky, the weather and the full three-day forecast where you are, your first trading card, one play of each mini-game every day, and photo export. There is no account and no sign-in.

What does Sundaze Premium add?

Sundaze Premium is an optional weekly or annual subscription. It adds the full event and card collection, video export, the Sky Notes widget on your Home Screen, the sky of any city in the world, and unlimited play of every mini-game.

Where does the weather data come from?

Weather is supplied by WeatherAPI.com, with Apple Weather as an automatic fallback. Sundaze reads live conditions, an hourly forecast and a three-day forecast, and draws the sky from them.

Where is Sundaze available, and on which devices?

Sundaze runs on iPhone with iOS 17 or later. It is available on the App Store in 19 countries: the United States, Canada, Mexico, the United Kingdom, Ireland, France, Germany, Spain, Austria, Switzerland, Belgium, Luxembourg, the Netherlands, Sweden, Norway, Denmark, Finland, Australia and New Zealand. The app is in English, French, German and Spanish.

Does Sundaze need my location or an account?

Sundaze has no account, no sign-in and no advertising. It uses your location only to retrieve the weather above you, and it does not use it for advertising, profiling or tracking. Without location access it can still show a demo sky.

What are the mini-games?

They are small arcade games built out of the weather in your own sky, such as Cloudburst, a match-3 of weather tiles, and Rising Tide, a platform climb above a rising sea. A door to one sometimes crosses the sky, and the game-controller button opens the arcade at any time.

Is Sundaze a weather-warning service?

No. Sundaze is an expressive forecast experience and should not be your only source for severe-weather, marine, aviation, medical or emergency decisions. Follow alerts and instructions from your official local authorities.