Peru · -13.53, -71.97
Today's peak is extreme. Unprotected skin burns in about 8 min at the worst hour. Treat the sun as a hazard: stay indoors or fully covered.
Cusco sits at 13.5° S, in the southern hemisphere. Today's UV peaks at 20.9: the "extreme" band, which uvlevel.net treats as extreme danger for unprotected skin at the worst hour.
Cusco sits close to the equator, so the sun stays high for most of the year: UV barely dips at any point, and there's no sharply defined "season" the way there is further from the equator.
Cusco sits about 3347 m above sea level. Thinner air scatters and absorbs less UV on the way down, so uvlevel.net adds roughly 27% to the modelled index here: uv = max(weather, CAMS) × (1 + 0.08 × metres/1000). That correction is already folded into every number on this page.
| Local time | UV index | Risk |
|---|---|---|
| 00:00 | 0 | No danger |
| 01:00 | 0 | No danger |
| 02:00 | 0 | No danger |
| 03:00 | 0 | No danger |
| 04:00 | 0 | No danger |
| 05:00 | 0 | No danger |
| 06:00 | 0.4 | No danger |
| 07:00 | 2.8 | No danger |
| 08:00 | 7.7 | Danger |
| 09:00 | 12.4 | Extreme danger |
| 10:00 | 17.8 | Extreme danger |
| 11:00 | 20.9 | Extreme danger |
| 12:00 | 20 | Extreme danger |
| 13:00 | 17.2 | Extreme danger |
| 14:00 | 11.5 | Extreme danger |
| 15:00 | 8.8 | Serious danger |
| 16:00 | 5.5 | Caution |
| 17:00 | 2.4 | No danger |
| 18:00 | 0.3 | No danger |
| 19:00 | 0 | No danger |
| 20:00 | 0 | No danger |
| 21:00 | 0 | No danger |
| 22:00 | 0 | No danger |
| 23:00 | 0 | No danger |
| Skin type | Time to burn |
|---|---|
| I · always burns, never tans | 6 min |
| II · burns easily | 8 min |
| III · burns sometimes | 11 min |
| IV · rarely burns | 14 min |
| V · brown skin | 19 min |
| VI · deeply pigmented | 32 min |
Yes. UV in Cusco is forecast to reach 3 or higher from 07:02 to 16:47 local time today, peaking at 20.9.
UV is highest in Cusco at around 11:00 local time today, reaching 20.9.
At today's peak of 20.9, fair skin (Fitzpatrick type II) with no sunscreen burns in about 8 min. Darker skin types take longer. See the table above for every type.
Cusco sits close to the equator, so the sun stays high for most of the year: UV barely dips at any point, and there's no sharply defined "season" the way there is further from the equator.
Forecasts and elevation from Open-Meteo. The second UV opinion contains modified Copernicus Atmosphere Monitoring Service (CAMS) information; neither the European Commission nor ECMWF is responsible for how it is used here.
uvlevel.net gives general sun-safety guidance, not medical advice. Photosensitising medication, skin conditions, infants and a history of skin cancer all call for stricter limits than shown here.