A little sun sense.

UV context, alongside your sunscreen routine.

Reading the scale

  1. 0-2 Low
  2. 3-5 Moderate
  3. 6-7 High
  4. 8-10 Very High
  5. 11+ Extreme

Higher numbers mean stronger ultraviolet radiation. Sunclub shows the value, severity, source, and update time.

Your forecast

Choose current location or a saved city in Settings → UV & Weather. Open Forecast from Today for hourly UV.

Why values change

UV varies with time, season, weather, and location. A forecast helps with planning; it does not measure your personal exposure.

Apple Weather and estimates

Apple Weather forecasts are cached for up to eight hours. Last-known values may appear for up to 24 hours, with their age shown. Without a usable forecast, Sunclub labels its on-device estimate. Logging always remains available.

Reapplication timing

Your timer follows your saved reapplication plan. A logged application or running timer does not confirm protection. Follow your sunscreen’s directions, including after swimming or sweating.

Sunclub is a habit tracker, not medical advice.