uvlevel.net

UV index in Osaka

Osaka, Japan · 34.69, 135.50

Today's peak12:00 local
4.9

Today's peak reaches moderate levels. Unprotected skin starts to redden in about 34 min at the worst hour: shade, sunglasses and SPF 30 are enough.

Danger window today (UV 3+)
08:51 → 13:58
Sunrise → sunset
05:4118:04
Open the live dashboard for Osaka

About the UV index in Osaka

Osaka sits at 34.7° N, in the northern hemisphere. Today's UV peaks at 4.9: 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.

Hour by hour today

UV index for every hour of today in Osaka, 34.69, 135.50, local time.
Local timeUV indexRisk
00:000No danger
01:000No danger
02:000No danger
03:000No danger
04:000No danger
05:000No danger
06:000.1No danger
07:000.5No danger
08:001.6No danger
09:003.3Caution
10:004.1Caution
11:004.1Caution
12:004.9Caution
13:004.5Caution
14:003No danger
15:002.4No danger
16:001.4No danger
17:001.4No 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 4.9 in Osaka. 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 tans27 min
II · burns easily34 min
III · burns sometimes48 min
IV · rarely burns1 h 02 min
V · brown skin1 h 22 min
VI · deeply pigmented2 h 17 min

Next 7 days · daily peak

Today
08:5113:58
4.9
Thu 17
08:4816:00
6.8
Fri 18
08:3014:48
6.8
Sat 19
08:4615:42
6.8
Sun 20
08:3915:54
6.6
Mon 21
09:1015:29
6.3
Tue 22
08:4115:52
6.6

Frequently asked

Is the UV index dangerous in Osaka today?

Yes. UV in Osaka is forecast to reach 3 or higher from 08:51 to 13:58 local time today, peaking at 4.9.

What time is UV highest in Osaka?

UV is highest in Osaka at around 12:00 local time today, reaching 4.9.

How long can unprotected skin stay out in Osaka today?

At today's peak of 4.9, fair skin (Fitzpatrick type II) with no sunscreen burns in about 34 min. Darker skin types take longer. See the table above for every type.

Does the UV index in Osaka 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

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.