California, United States · 32.72, -117.16
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 San Diego
San Diego sits at 32.7° 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.
In the Northern Hemisphere at this latitude, UV climbs highest around June and July and eases, without disappearing, around December and January. Even the winter trough here can still cross the moderate band near midday.
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 | No danger |
| 07:00 | 0.3 | No danger |
| 08:00 | 1.3 | No danger |
| 09:00 | 3.1 | Caution |
| 10:00 | 5.6 | Caution |
| 11:00 | 8 | Serious danger |
| 12:00 | 9.7 | Serious danger |
| 13:00 | 10.1 | Serious danger |
| 14:00 | 9.1 | Serious danger |
| 15:00 | 7.6 | Danger |
| 16:00 | 6.2 | Danger |
| 17:00 | 4.5 | Caution |
| 18:00 | 2.6 | No danger |
| 19:00 | 1.1 | No danger |
| 20:00 | 0.2 | 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 San Diego today?
Yes. UV in San Diego is forecast to reach 3 or higher from 08:58 to 17:47 local time today, peaking at 10.1.
What time is UV highest in San Diego?
UV is highest in San Diego at around 13:00 local time today, reaching 10.1.
How long can unprotected skin stay out in San Diego 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 San Diego change with the seasons?
In the Northern Hemisphere at this latitude, UV climbs highest around June and July and eases, without disappearing, around December and January. Even the winter trough here can still cross the moderate band near midday.
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.