uv2Day app
uv2Day app
- An app to show ultraviolet index (UVI) information all over New Zealand, Australia, South Pacific and Antarctic – its peak value and it's progression throughout the day at your current location. The UVI measures levels of ultraviolet radiation from the sun.

uv2Day app | By Jeremy Burke |
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Features
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Country of origin | New Zealand |
Clinical review |
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Security and privacy | Does the app:
Read more about safety and security when using apps. Brochures: |
Cost | Free |
Advertisements | This app contains no ads. |
How to get the app |
The uv2day app helps users to know when to take more care in the sun by providing information about the UV index during the day at a location of choice. The app provides information on the UV index (UVI) forecasts throughout the day at your specified location. You can also access information on other selected locations within New Zealand, Australia, South Pacific and Antarctic regions. The app is useful for planning outdoor activities throughout the year and has a specific New Zealand ski region section. It alerts you when the UVI is 3 or above and gives corresponding information on the exposure period within which skin damage can occur. It prompts you to avoid exposure or use skin protection (slip, slop, slap and wrap(external link)). Data in the app is provided by NIWA (National Institute of Water and Atmospheric). For a more detailed description of the app, see Google Play(external link) and for a detailed review, see reviews below.
PROS | CONS |
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✔ Includes behavioural messages. ✔ Provides education on UV index in a graph format – easy to understand. ✔ Has local region and town-specific info. |
✘ A possible improvement is more detail on the types of sun protection required for the different UVI readings. For example, how often to apply sunscreen, what strength SPF is recommended or tips on how to cover up.
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Clinical review
Reviewer: Angela Lambie, Pharmacist
Date of review: December 2023
Version: 22.1
Platform: Apple
Comments: uv2day helps users to know when to take more care in the sun by providing information about the UV index during the day at a location of choice. It is useful for people who are interested in knowing the UV index at their location so they can be prepared if they are going outside during periods of high UV and reduce skin damage from the sun.
Safety concerns: None
New Zealand relevance: Yes
Calculation of UVI for smartphone apps(external link) NIWA
UV radiation(external link) Health Promotion Agency, New Zealand
Buller DB, Berwick M, Lantz K, et al. Smartphone mobile application delivering personalized, real-time sun protection advice – a randomized clinical trial.(external link) JAMA Dermatol. 2015 May;151(5):497-504.
Resources
A smartphone app for summer sun protection [PDF, 222 KB] Cancer Society of NZ, 2017
Disclaimer: The NZ Health App Library is a free consumer service to help you decide whether a health app would be suitable for you. Our review process is independent. We have no relationship with the app developers or companies and no responsibility for the service they provide. This means that if you have an issue with one of the apps we have reviewed, you will need to contact the app developer or company directly. |
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