Texas, United States · 29.76, -95.37
Today's peak is extreme. Unprotected skin burns in about 15 min at the worst hour. Treat the sun as a hazard: stay indoors or fully covered.
About the UV index in Houston
Houston sits at 29.8° N, in the northern hemisphere. Today's UV peaks at 11: the "extreme" band, which uvlevel.net treats as extreme 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 | 0.3 | No danger |
| 07:00 | 1.5 | No danger |
| 08:00 | 3.7 | Caution |
| 09:00 | 6.2 | Danger |
| 10:00 | 8.6 | Serious danger |
| 11:00 | 10.3 | Serious danger |
| 12:00 | 11 | Extreme danger |
| 13:00 | 10.3 | Serious danger |
| 14:00 | 9.5 | Serious danger |
| 15:00 | 7.9 | Danger |
| 16:00 | 5.5 | Caution |
| 17:00 | 3.1 | Caution |
| 18:00 | 1.3 | No danger |
| 19:00 | 0.3 | 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 | 12 min |
| II · burns easily | 15 min |
| III · burns sometimes | 21 min |
| IV · rarely burns | 27 min |
| V · brown skin | 36 min |
| VI · deeply pigmented | 1 h 01 min |
Next 7 days · daily peak
Frequently asked
Is the UV index dangerous in Houston today?
Yes. UV in Houston is forecast to reach 3 or higher from 07:40 to 17:03 local time today, peaking at 11 (estimated from solar position, live forecast data was unavailable).
What time is UV highest in Houston?
UV is highest in Houston at around 12:00 local time today, reaching 11 (estimated from solar position, live forecast data was unavailable).
How long can unprotected skin stay out in Houston today?
At today's peak of 11, fair skin (Fitzpatrick type II) with no sunscreen burns in about 15 min (estimated from solar position, live forecast data was unavailable). Darker skin types take longer. See the table above for every type.
Does the UV index in Houston 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.