High risk. Unprotected skin can burn quickly.
UV index 6 enters the high-risk zone. Fair skin can burn in 10-15 minutes. Sun protection is no longer optional - it is essential for everyone spending more than a few minutes outdoors.
UV 6 is typical of midday summer sun at mid-latitudes (40-50 degrees N/S), or morning/afternoon in subtropical and tropical areas. This is the level where sunburn becomes rapid for unprotected skin.
Estimated minutes until sunburn begins for each Fitzpatrick skin type at UV 6 without sunscreen or protective clothing.
| Skin Type | Burn Time | With SPF 30 | With SPF 50 |
|---|---|---|---|
| Type I - Very fair, always burns | 10 min | ~30 min | ~40 min |
| Type II - Fair, burns easily | 15 min | ~45 min | ~60 min |
| Type III - Medium, sometimes burns | 25 min | ~75 min | ~100 min |
| Type IV - Olive, rarely burns | 40 min | ~120 min | ~120 min |
| Type V - Brown, very rarely burns | 60 min | ~120 min | ~120 min |
| Type VI - Dark, never burns | 90 min | ~120 min | ~120 min |
Times are estimates based on Fitzpatrick skin typing at UV 6. Actual burn times vary by skin condition, altitude, reflection, and acclimatisation.
Plan outdoor activities for early morning or late afternoon. If midday exercise is unavoidable, wear UV clothing and take shade breaks every 30 minutes.
Only briefly. At UV 6, fair skin burns faster than it tans. Use SPF 30+ and limit sessions to a few minutes for skin types I-II.
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。