uvlevel.net

UV index in Toronto

Ontario, Canada · 43.65, -79.38

Today's peak13:00 local
5.5

Today's peak reaches moderate levels. Unprotected skin starts to redden in about 31 min at the worst hour: shade, sunglasses and SPF 30 are enough.

Danger window today (UV 3+)
10:31 → 16:45
Sunrise → sunset
06:5819:25
Open the live dashboard for Toronto

About the UV index in Toronto

Toronto sits at 43.6° N, in the northern hemisphere. Today's UV peaks at 5.5: the "moderate" band, which uvlevel.net treats as caution for unprotected skin at the worst hour.

Toronto 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 Toronto, 43.65, -79.38, 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
08:000.3No danger
09:001No danger
10:002.3No danger
11:003.7Caution
12:004.9Caution
13:005.5Caution
14:005.1Caution
15:004.4Caution
16:004Caution
17:002.7No danger
18:001.6No danger
19:000.5No 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 5.5 in Toronto. 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 tans24 min
II · burns easily31 min
III · burns sometimes43 min
IV · rarely burns55 min
V · brown skin1 h 13 min
VI · deeply pigmented2 h 02 min

Next 7 days · daily peak

Today
10:3116:45
5.5
Thu 17
11:4912:08
3.1
Fri 18
10:2616:27
5.5
Sat 19
10:4316:14
5.1
Sun 20
10:3915:38
5.4
Mon 21
11:2115:18
3.8
Tue 22
11:3013:00
3.2

Frequently asked

Is the UV index dangerous in Toronto today?

Yes. UV in Toronto is forecast to reach 3 or higher from 10:31 to 16:45 local time today, peaking at 5.5.

What time is UV highest in Toronto?

UV is highest in Toronto at around 13:00 local time today, reaching 5.5.

How long can unprotected skin stay out in Toronto today?

At today's peak of 5.5, fair skin (Fitzpatrick type II) with no sunscreen burns in about 31 min. Darker skin types take longer. See the table above for every type.

Does the UV index in Toronto change with the seasons?

Toronto 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.