SkyFeels The UV Index is a way to describe the strength of ultraviolet radiation at the surface. A higher number means greater potential for skin and eye damage, and less time before protection matters. It is a separate question from whether the air feels warm, cloudy or pleasant.
Make it part of the same quick check
Before a walk, commute or outdoor plan, check the temperature, precipitation outlook and UV Index together. That gives you a more useful picture than temperature alone: a cool day can still have meaningful UV exposure, and an overcast sky does not automatically make UV irrelevant.
The daily value commonly represents the strongest part of the day, often around solar noon. Use an hourly view when available if the timing of an outdoor plan matters.
A simple decision rule
The World Health Organization recommends sun-protection measures when the UV Index reaches 3 or above. Protection can include shade, clothing, a hat, sunglasses and sunscreen used as directed. Your needs can differ with time outdoors, skin sensitivity, altitude, reflection from water or snow, and local guidance.
This is general weather information, not personal medical advice. If you have a health concern or a clinician’s instructions, follow those first.
In SkyFeels
SkyFeels places UV alongside the forecast so it can be part of a normal weather glance. Treat the number as context for planning, not as a judgment about whether it is a “good” weather day.