Laos · 17.98, 102.63
Today's peak is high. Unprotected skin burns in about 25 min at the worst hour: stay in the shade around midday.
About the UV index in Vientiane
Vientiane sits at 18.0° N, in the northern hemisphere. Today's UV peaks at 6.7: the "high" band, which uvlevel.net treats as 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 | 0.5 | No danger |
| 08:00 | 1.5 | No danger |
| 09:00 | 2.2 | No danger |
| 10:00 | 3.1 | Caution |
| 11:00 | 5 | Caution |
| 12:00 | 4.5 | Caution |
| 13:00 | 6.7 | Danger |
| 14:00 | 5.4 | Caution |
| 15:00 | 4.8 | Caution |
| 16:00 | 4.4 | Caution |
| 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 | 20 min |
| II · burns easily | 25 min |
| III · burns sometimes | 35 min |
| IV · rarely burns | 45 min |
| V · brown skin | 1 h |
| VI · deeply pigmented | 1 h 40 min |
Next 7 days · daily peak
Frequently asked
Is the UV index dangerous in Vientiane today?
Yes. UV in Vientiane is forecast to reach 3 or higher from 09:53 to 16:28 local time today, peaking at 6.7.
What time is UV highest in Vientiane?
UV is highest in Vientiane at around 13:00 local time today, reaching 6.7.
How long can unprotected skin stay out in Vientiane today?
At today's peak of 6.7, fair skin (Fitzpatrick type II) with no sunscreen burns in about 25 min. Darker skin types take longer. See the table above for every type.
Does the UV index in Vientiane 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.