Unprotected UV exposure from the sun is the #1 cause of skin aging and skin cancer!

Sun Risk lets you check the risk to your skin right on your iPhone, iPad, and Apple Watch!

Sun Risk shows you the forecast for ultraviolet radiation levels throughout the day. (the UV index)

• See the hourly and daily risk of UV exposure in any U.S. city.
• UV forecasts provided by NOAA and the EPA.
• View risk for multiple cities in main app (cities in USA only).
• Includes Sun Risk widget; check the risk right on your lock screen!
• Includes Apple Watch app and Complication; see the risk right on your Watch face, and use Time Travel to see the upcoming risk throughout the day.

Featured by Apple - 2015

“… a smart watchOS app that uses some of the platform’s best features to bring UV forecasts to the wrist.” -


Have questions, need help, or have a great suggestion? I’d love to hear from you!
Email -
Twitter - @sunriskapp
Web -

What's New

Version 2.3.1

• Fixed text not fitting properly in widget when text size is increased on 4" devices.

• New main app layout provides more detail at a glance.
• New beautiful and informative color backgrounds.
• Intelligent and efficient background updating.
• Improved text legibility in main app and widget.
• Made getting current location more efficient.
• Two new descriptive large Apple Watch face complications.
• All Sun Risk Apple Watch face complications now much more reliable.
• Loading in Apple Watch app and glance now much faster and more reliable.
• SunDial: UV Index has a new name... Sun Risk!
• New icon to match new name!

Customer Reviews

4.4 out of 5

7 Ratings

7 Ratings

Great with Apple Watch

Dexter Dreaming Darkly

Just purchased this today, and so far so good! I can check the UV level by simply glancing at my watch using the complication. Works great and exactly what I was looking for! Seems to be updating the UV number throughout the day properly as well. I'll post an update if I notice any issues, but as of now, I can wholeheartedly recommend this app. Thanks developers for making this! It's so important to check the UV levels before sun exposure, and this app makes doing so incredibly convenient.

Good data but not up to Apple Design specs

DJ Rizzo

This is one of the few apps I own where I use the widget. It drives me crazy that they still have not updated the widget to comply with Apples current design standard of a translucent white background. I’m not a developer, but really how hard can it be to change that? One star off for this annoyance.

Otherwise data is good to have so easily accessible - occasionally I get an error that it can’t reach the server forcing me to try to find another source of sun info.



Simple and solid. I wanted to be able to get the current UV index from just a glance at my wrist. Sun Risk makes this happen quickly without useless gimmicks. It just works. Saves me a lot of time as I don't have to unlock my phone, find a weather app, open it, and scroll down (many times a day). Apps like these demonstrate the usefulness of the Apple Watch.


Interface Labs LLC
18.1 MB
Requires iOS 8.2 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2016 Interface Labs LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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