🧴 Daily UV Skin Cancer Risk Score
Estimate how risky today’s UV exposure might be for your skin based on UV index, time outdoors, protection, and sensitivity.
Last Updated: November 2025 • For today’s pattern only (lifetime risk depends on many days like this)
Today’s UV Risk Snapshot
0 / 100
How your daily UV risk score is calculated
We estimate a UV dose by combining:
- Today’s UV index (higher = stronger UV).
- How many hours you plan to be outdoors in peak vs. non‑peak times.
- Your skin sensitivity (how easily you burn).
- Your protection level (SPF, clothing, hats, shade).
- Environment (altitude / snow can increase UV intensity).
Each factor contributes to a 0–100 daily risk index (higher = more potentially hazardous UV for your skin that day). This doesn’t measure lifetime cancer risk, but it helps you decide whether today’s plan is low, moderate, or high risk and where you can reduce exposure.
Using UV Index for Skin Protection
UV index is a scale from 1 (low) to 11+ (extreme) that summarizes the strength of sunburn‑producing UV radiation. Higher UV index values mean skin damage can occur faster. Pairing UV index with your time outdoors and protection habits gives a clearer picture of daily risk than any one factor alone.
Rule of Thumb
- UV 1–2: Low (still wear SPF if out for long periods).
- UV 3–5: Moderate (seek shade in midday, SPF 30+ recommended).
- UV 6–7: High (reduce midday time, SPF 30+, hats and sunglasses).
- UV 8–10: Very high (minimize midday exposure, strong protection).
- UV 11+: Extreme (avoid midday sun; strong protection essential).