Tamil Nadu, India · 13.08, 80.27
Today's peak is very high. Skin damage happens fast: roughly 17 min before burning at the worst hour. Avoid direct sun entirely inside the danger window below.
About the UV index in Chennai
Chennai sits at 13.1° N, in the northern hemisphere. Today's UV peaks at 10.1: the "very high" band, which uvlevel.net treats as serious danger for unprotected skin at the worst hour.
Chennai 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.
Hour by hour today
| 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 | 0.2 | No danger |
| 07:00 | 0.8 | No danger |
| 08:00 | 2.7 | No danger |
| 09:00 | 5.4 | Caution |
| 10:00 | 8 | Danger |
| 11:00 | 10.1 | Serious danger |
| 12:00 | 10.1 | Serious danger |
| 13:00 | 6.7 | Danger |
| 14:00 | 3.1 | Caution |
| 15:00 | 1.7 | No danger |
| 16:00 | 1.9 | No danger |
| 17:00 | 0.4 | No danger |
| 18:00 | 0.1 | 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 | 13 min |
| II · burns easily | 17 min |
| III · burns sometimes | 23 min |
| IV · rarely burns | 30 min |
| V · brown skin | 40 min |
| VI · deeply pigmented | 1 h 06 min |
Next 7 days · daily peak
Frequently asked
Is the UV index dangerous in Chennai today?
Yes. UV in Chennai is forecast to reach 3 or higher from 08:07 to 14:04 local time today, peaking at 10.1.
What time is UV highest in Chennai?
UV is highest in Chennai at around 11:00 local time today, reaching 10.1.
How long can unprotected skin stay out in Chennai today?
At today's peak of 10.1, fair skin (Fitzpatrick type II) with no sunscreen burns in about 17 min. Darker skin types take longer. See the table above for every type.
Does the UV index in Chennai change with the seasons?
Chennai 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.
Nearby cities
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.