UV Hour

How long can skin type V tan without burning?

8.3 your limit
Very high UV

Fitzpatrick type V (burns very rarely, tans very easily) reaches the first redness after about 42 min at UV 8 and 67 min at UV 5, with no sunscreen. Its safe ceiling is UV 8.3 — above that, there is no unprotected midday window.

Brown skin, dark hair, dark eyes.

Today in Columbus

UV 0 right now (low) · peak UV 8.6 at 14:00 · skin type V window 11:07–13:34 and 14:14–17:49

8.6 peak today
Very high UV
  • 14:00 Peak UV hour
  • 39 min Time to redness at peak, type V
  • 11:07–13:34 First of 2 windows
  • 11:20–17:13 Protection recommended (UV 3+, WHO)
0 2 4 6 8 10 06:00 09:00 12:00 15:00 18:00 21:00 8.6 our 40-min cut-off — UV 8.3 06:12
Your window Under 40 min to redness UV index
Today's window in Columbus, by skin type. Times are local.
Skin typeWindowTime to redness at peak UV 8.6
I17:03–17:4916 min
II11:07–11:35, 16:36–17:4919 min
III11:07–11:45, 16:13–17:4923 min
IV11:07–12:20, 15:21–17:4931 min
V11:07–13:34, 14:14–17:4939 min
VI11:07–17:4947 min

Type V at every UV level

Minutes before the first redness for skin type V (MED 500 J/m²), at each UV level. Below 20 minutes is shown in red.
UV index No SPFSPF 15SPF 30SPF 50 Band
UV 1 5 h 33 over 24 h over 24 h over 24 h Low
UV 2 2 h 47 over 24 h over 24 h over 24 h Low
UV 3 1 h 51 over 24 h over 24 h over 24 h Moderate
UV 4 83 min 20 h 50 over 24 h over 24 h Moderate
UV 5 67 min 16 h 40 over 24 h over 24 h Moderate
UV 6 56 min 13 h 53 over 24 h over 24 h High
UV 7 48 min 11 h 54 23 h 49 over 24 h High
UV 8 42 min 10 h 25 20 h 50 over 24 h Very high
UV 9 37 min 9 h 16 18 h 31 over 24 h Very high
UV 10 33 min 8 h 20 16 h 40 over 24 h Very high
UV 11 30 min 7 h 35 15 h 09 over 24 h Extreme

Rows up to UV 8.3 are the levels where type V keeps at least 40 minutes before the first redness. How this is calculated.

What type V actually means

At 500 J/m² the burn times are long — 42 minutes at UV 8, more than an hour at UV 5 — and the limit sits at UV 8.3. Burning is uncommon but not impossible: type V does burn at extreme UV, at altitude, and on reflective surfaces, which are exactly the situations where nobody expects it to.

How to recognise it: Type V very rarely burns and deepens quickly in the sun. Common in South Asia, the Middle East and much of Africa.

What to do: Type V has a continuous window on almost every day of a northern-European summer. The exceptions worth knowing are snow, high altitude, and the tropics at midday.

Where type V sits among the six

Where the sun is strongest right now

Skin type V — the questions people actually ask

How long can skin type V stay in the sun?

It depends entirely on the UV index, not on the temperature or the season. Type V has a minimal erythemal dose of 500 J/m², which gives about 1 h 51 at UV 3, 67 min at UV 5, 42 min at UV 8 and 30 min at UV 11, with no sunscreen and a clear sky.

What UV index is safe for skin type V?

Up to UV 8.3. That is the level at which type V still has 40 minutes before the first redness — the threshold UV Hour uses everywhere. UV 8.3 sits in the very high band, so on days above that, type V gets a morning window and an afternoon window instead of one continuous one.

Am I skin type V?

Brown skin, dark hair, dark eyes. Burns very rarely, tans very easily. Type V very rarely burns and deepens quickly in the sun. Common in South Asia, the Middle East and much of Africa.

How much does SPF 30 change things for type V?

At UV 8 it takes type V from about 42 min to about 20 h 50 in laboratory conditions. In practice the two-hour reapplication rule arrives first, so treat SPF 30 as removing the burn deadline rather than extending it to a specific new time.