Very high risk. Unprotected skin burns rapidly.
UV index 8 is classified as very high risk. Unprotected fair skin burns in under 10 minutes. This level is dangerous and requires comprehensive sun protection.
UV 8 is typical of midday sun in southern Europe during summer, subtropical regions, and elevated tropical locations. Sand, water, and snow reflection can amplify this further.
Estimated minutes until sunburn begins for each Fitzpatrick skin type at UV 8 without sunscreen or protective clothing.
| Skin Type | Burn Time | With SPF 30 | With SPF 50 |
|---|---|---|---|
| Type I - Very fair, always burns | 8 min | ~24 min | ~32 min |
| Type II - Fair, burns easily | 11 min | ~33 min | ~44 min |
| Type III - Medium, sometimes burns | 19 min | ~57 min | ~76 min |
| Type IV - Olive, rarely burns | 30 min | ~90 min | ~120 min |
| Type V - Brown, very rarely burns | 45 min | ~120 min | ~120 min |
| Type VI - Dark, never burns | 68 min | ~120 min | ~120 min |
Times are estimates based on Fitzpatrick skin typing at UV 8. Actual burn times vary by skin condition, altitude, reflection, and acclimatisation.
Outdoor activities should be scheduled for early morning (before 10 AM) or late afternoon (after 4 PM). If midday exposure is unavoidable, full protective gear is essential.
Not safely. At UV 8, most skin burns before it tans. Seek shade around midday and wait for UV to fall to 3-5.
Best UV index for tanning - full guide →肌のタイプ、SPF、服装に基づいて日焼け予測をパーソナライズします。
直ちに日陰を探すか、SPF保護を塗布してください。