São Paulo, Brazil · -23.55, -46.63
Today's peak reaches moderate levels. Unprotected skin starts to redden in about 32 min at the worst hour: shade, sunglasses and SPF 30 are enough.
São Paulo sits at 23.6° S, in the southern hemisphere. Today's UV peaks at 5.3: the "moderate" band, which uvlevel.net treats as caution for unprotected skin at the worst hour.
In the Southern Hemisphere at this latitude, UV climbs highest around December and January and eases, without disappearing, around June and July. Even the winter trough here can still cross the moderate band near midday.
São Paulo sits about 737 m above sea level. Thinner air scatters and absorbs less UV on the way down, so uvlevel.net adds roughly 6% 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 | No danger |
| 07:00 | 0.3 | No danger |
| 08:00 | 1.1 | No danger |
| 09:00 | 2 | No danger |
| 10:00 | 3.2 | Caution |
| 11:00 | 4 | Caution |
| 12:00 | 4.2 | Caution |
| 13:00 | 3.9 | Caution |
| 14:00 | 4.3 | Caution |
| 15:00 | 5.3 | Caution |
| 16:00 | 2.7 | No danger |
| 17:00 | 1.4 | 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 | 25 min |
| II · burns easily | 32 min |
| III · burns sometimes | 44 min |
| IV · rarely burns | 57 min |
| V · brown skin | 1 h 16 min |
| VI · deeply pigmented | 2 h 06 min |
Yes. UV in São Paulo is forecast to reach 3 or higher from 09:48 to 15:53 local time today, peaking at 5.3.
UV is highest in São Paulo at around 15:00 local time today, reaching 5.3.
At today's peak of 5.3, fair skin (Fitzpatrick type II) with no sunscreen burns in about 32 min. Darker skin types take longer. See the table above for every type.
In the Southern Hemisphere at this latitude, UV climbs highest around December and January and eases, without disappearing, around June and July. Even the winter trough here can still cross the moderate band near midday.
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.