Can I burn at UV 6 on a cool day?

Yes. UV and temperature are unrelated, a 19°C spring day can carry UV 6 just as easily as a 30°C one. Skin burns by dose of ultraviolet radiation, not by heat. Go by the UV index, never the thermometer.

How long does it take to burn at UV 6?

Around 20 minutes for very fair (type I) skin, about 28 minutes for fair (type II), roughly 40 minutes for light-medium (type III), and progressively longer for deeper tones, every skin type can still burn given enough time.

How long can you stay in the sun at UV 6?

UV 6 · High

UV 6 is where the scale officially turns 'high', and the numbers explain why: very fair skin can start to burn in about 20 minutes, shorter than most lunch breaks. This is the strength of a late-spring midday in Melbourne or a mild autumn day in Brisbane.

Burn times at UV 6, by skin type

Estimated from typical minimal erythemal doses. Reflection off sand, water or snow shortens all times. SPF 50 times assume proper application and are capped at 4 hours, reapply every 2. Educational only.
Skin type	Sun reaction	Unprotected at UV 6	With SPF 50+
I: Very fair	Always burns, never tans	22 min	4 h+
II: Fair	Burns easily, tans minimally	28 min	4 h+
III: Light to medium	Sometimes burns, tans gradually	39 min	4 h+
IV: Olive to tan	Rarely burns, tans easily	50 min	4 h+
V: Brown	Very rarely burns, tans deeply	1 h 7 min	4 h+
VI: Deep brown to black	Almost never burns	1 h 51 min	4 h+

When and where UV 6 happens in Australia

Sydney and Perth pass through UV 6 mid-morning on most summer days and hit it as the midday peak in early September and late April. Melbourne and Adelaide see UV 6 peaks through late October and February–March. Brisbane reaches it at midday from August onwards. Even Darwin's mildest dry-season middays sit near this level, the Top End never really drops below 'high' at noon.

What protection looks like at this level

Treat UV 6 as a proper sun day regardless of the temperature: SPF 50+, hat, sunglasses, and shade through the middle hours if you're out long. Fair-skinned people doing an hour of sport or yard work at UV 6 will burn without sunscreen, this is the level where 'I was only out for a bit' stories usually come from.

Frequently asked questions

Can I burn at UV 6 on a cool day?: Yes. UV and temperature are unrelated, a 19°C spring day can carry UV 6 just as easily as a 30°C one. Skin burns by dose of ultraviolet radiation, not by heat. Go by the UV index, never the thermometer.
How long does it take to burn at UV 6?: Around 20 minutes for very fair (type I) skin, about 28 minutes for fair (type II), roughly 40 minutes for light-medium (type III), and progressively longer for deeper tones, every skin type can still burn given enough time.

Keep reading

What does UV 6 mean for your skin?

A photo estimates your skin type; the live UV where you stand turns it into your personal burn time.

Check my burn time