Vietnam · 21.03, 105.85
Today's peak reaches moderate levels. Unprotected skin starts to redden in about 45 min at the worst hour: shade, sunglasses and SPF 30 are enough.
Hanoi sits at 21.0° N, in the northern hemisphere. Today's UV peaks at 3.7: the "moderate" band, which uvlevel.net treats as caution 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.
| 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 | 0.2 | No danger |
| 08:00 | 0.6 | No danger |
| 09:00 | 1.4 | No danger |
| 10:00 | 2.2 | No danger |
| 11:00 | 3.3 | Caution |
| 12:00 | 3.7 | Caution |
| 13:00 | 2.6 | No danger |
| 14:00 | 2.1 | No danger |
| 15:00 | 1.2 | No danger |
| 16:00 | 1.5 | No danger |
| 17:00 | 1.1 | No danger |
| 18:00 | 0.2 | 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 | 36 min |
| II · burns easily | 45 min |
| III · burns sometimes | 1 h 03 min |
| IV · rarely burns | 1 h 21 min |
| V · brown skin | 1 h 48 min |
| VI · deeply pigmented | 3 h |
Yes. UV in Hanoi is forecast to reach 3 or higher from 10:45 to 12:38 local time today, peaking at 3.7.
UV is highest in Hanoi at around 12:00 local time today, reaching 3.7.
At today's peak of 3.7, fair skin (Fitzpatrick type II) with no sunscreen burns in about 45 min. Darker skin types take longer. See the table above for every type.
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.
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.