uvlevel.net

UV index in Porto

Portugal · 41.15, -8.61

Today's peak13:00 local
3.6

Today's peak reaches moderate levels. Unprotected skin starts to redden in about 46 min at the worst hour: shade, sunglasses and SPF 30 are enough.

Danger window today (UV 3+)
11:15 → 14:18
Sunrise → sunset
07:09 → 17:26
Open the live dashboard for Porto →

About the UV index in Porto

Porto sits at 41.1° N, in the northern hemisphere. Today's UV peaks at 3.6: the "moderate" band, which uvlevel.net treats as caution for unprotected skin at the worst hour.

Porto sees the widest UV swing of the year of any latitude band: a sharp summer peak around June and July, and a winter trough around December and January where midday UV can sit near zero for weeks at a time.

Hour by hour today

UV index for every hour of today in Porto, 41.15, -8.61, local time.
Local timeUV indexRisk
00:000No danger
01:000No danger
02:000No danger
03:000No danger
04:000No danger
05:000No danger
06:000No danger
07:000No danger
08:000.2No danger
09:000.9No danger
10:001.9No danger
11:002.9No danger
12:003.5Caution
13:003.6Caution
14:003.3Caution
15:002.5No danger
16:001.5No danger
17:000.5No danger
18:000.1No danger
19:000No danger
20:000No danger
21:000No danger
22:000No danger
23:000No danger

Time to burn today

Time to burn without sunscreen, per Fitzpatrick skin type, at today's peak of UV 3.6 in Porto. Real-world sunscreen use is about a third of the tested layer, so a treated time is a ceiling, not a promise.
Skin typeTime to burn
I · always burns, never tans37 min
II · burns easily46 min
III · burns sometimes1 h 05 min
IV · rarely burns1 h 23 min
V · brown skin1 h 51 min
VI · deeply pigmented3 h 05 min

Next 7 days · daily peak

Today
11:15–14:18
3.6
Thu 5
11:15–14:18
3.7
Fri 6
11:46–13:17
3.2
Sat 7
12:43–13:36
3.2
Sun 8
1.3
Mon 9
1.5
Tue 10
1.5

Frequently asked

Is the UV index dangerous in Porto today?

Yes. UV in Porto is forecast to reach 3 or higher from 11:15 to 14:18 local time today, peaking at 3.6.

What time is UV highest in Porto?

UV is highest in Porto at around 13:00 local time today, reaching 3.6.

How long can unprotected skin stay out in Porto today?

At today's peak of 3.6, fair skin (Fitzpatrick type II) with no sunscreen burns in about 46 min. Darker skin types take longer. See the table above for every type.

Does the UV index in Porto change with the seasons?

Porto sees the widest UV swing of the year of any latitude band: a sharp summer peak around June and July, and a winter trough around December and January where midday UV can sit near zero for weeks at a time.

Nearby cities

Browse all cities →Burn-time guide →How the forecast works →

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.