UV Work Log
A daily record of the sun you get at work. Pick your town, enter when you started outside and for how many hours, and see the estimated UV dose for that day. Add each day to your log, then print it or download a spreadsheet to hand to your employer. Free, no sign-up, works offline.
An estimate, not advice. The UV figures come from a computer model of the atmosphere with a grid about 40 km wide, not from a meter at your site. Cloud, shade, clothing, sunscreen, reflection and your own skin all change what you really got. This page does not say you are safe or at risk, and it is not medical or work health and safety advice. Your log stays in this browser and is never uploaded.
1. Where and when
2. Your time outside
Hours outside means the time you were out in the open, added up (a long break indoors is a gap, so enter the two stints as two log lines). Your skin type is used on this screen only and is left out of the printout and the download.
3. The day's estimate
Choose a town and a day.
4. Your log
Nothing logged yet.
How this works
- The dose: each hour of the day has a modelled UV index. The estimate adds up the UV index across the hours you were outside and converts it to standard erythemal doses (SED; 1 SED is 100 joules per square metre of sunburn-weighted UV). One hour at UV index 10 is 9 SED. It assumes bare skin in the open with no shade or sunscreen.
- The reference level: the figure shown beside your dose is the low end of the published range of the dose that first reddens skin (the minimal erythemal dose) for each Fitzpatrick skin type, in SED: I 2, II 2.5, III 3, IV 4, V 6, VI 6. Source: Fajuyigbe and Young, "The impact of skin colour on human photobiological responses", Pigment Cell & Melanoma Research 2016, Table 1 (full text). It is a guide, not medical advice: not a safe limit, not a promise that anything below it is harmless, and people differ. UV adds up.
- The data: Contains modified Copernicus Atmosphere Monitoring Service information 2026 (Copernicus Atmosphere Monitoring Service, ECMWF, CC BY 4.0). Neither the European Commission nor ECMWF is responsible for any use that may be made of the information it contains. UV values are modelled estimates, not measurements. It is not from ARPANSA or the Bureau of Meteorology. For official sun protection times use the SunSmart app or your state cancer council.
- Privacy: the log, your name and your skin type are kept in this browser's storage on this device. Clearing browser data removes them.
Want more?
Planned paid plan: one sheet for several workers, history saved across your devices, and a record in your business name, A$29 a year (price not final). It does not exist yet.
I'd want this: A$29/year Not charged yet, price not final. Nothing is sold, charged or collected on this page.