Use the Live UV Index & Sun Safety Calculator
See the real, live UV index for your exact location right now and for the next 48 hours, pulled from a live meteorological forecast API.
- Free to use
- No signup
- Nothing to install
- Works in any modern browser
Illustration. Open the tool for the real thing.
See it in action
The Live UV Index & Sun Safety Calculator with sample data entered and the result showing.
What is the Live UV Index & Sun Safety Calculator?
The UV index changes hour to hour based on real, current atmospheric conditions (cloud cover, ozone, sun angle) — not something a static seasonal chart or a chatbot can know for your exact location right now. This tool fetches the real, live UV index forecast for your searched location or current GPS position directly from a live meteorological forecast API, showing the current value and how it changes over the next 48 hours.
It then combines that real live UV index with your selected skin sensitivity type to estimate a real, honestly-labeled approximate time until unprotected skin is at meaningful risk of sunburn — a genuinely useful, live-data-driven safety estimate rather than a generic 'wear sunscreen' reminder.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Pulled from a live forecast API for your exact searched location or current GPS position, not a static seasonal average.
See how the UV index is expected to change through today and tomorrow, not just right now.
Combines the real live UV value with your selected sensitivity to estimate a rough safe-exposure window.
Search any city or use your current location for a real, location-specific reading.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
Anyone planning outdoor time in strong sun
Get a real, current UV reading for the exact place and time instead of a generic seasonal guess.
Try it freeParents planning kids' outdoor activities
See the live UV level and a rough safe-exposure estimate before a beach or park trip.
Try it freePeople with sun-sensitive skin or on photosensitizing medication
Check the real live UV index before spending extended time outdoors.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This calculator | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
Questions people ask
Is this UV index live, or a typical seasonal average?
It's a real, live value pulled directly from a meteorological forecast API for your exact searched location or current GPS position at the time you check — not a static seasonal average.
How is the safe exposure time calculated?
By combining the real live UV index value with a general skin-sensitivity multiplier for your selected skin type, using widely published general sun-safety guidance — it's a rough, honestly-labeled estimate, not a personalized medical calculation.
Does it account for sunscreen?
No, the estimate is for unprotected skin; wearing and properly reapplying sunscreen meaningfully extends safe exposure time beyond what's shown.
Can I see the UV forecast for later today or tomorrow, not just right now?
Yes — the tool shows a real 48-hour UV index forecast for the selected location, not just the current instant.
Where does the live data come from?
A live, free, public meteorological forecast API, the same kind of real-time data source used by this site's other live weather-based tools.
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Try the Live UV Index & Sun Safety Calculator now
Real live UV index for your exact location right now, plus how many minutes until sunburn. Free to use.
Try it free