UV Index Today

See the UV index right now for any city or your location — today's peak, an hourly UV forecast, and a 3-day outlook, with sun-safety guidance. Free, powered by Open-Meteo.

UV index for your location
100% free, no sign-up No tracking, no ads UV data by Open-Meteo

How It Works

Pick a place and read the UV index — no account, no key.

1

Choose a location

Search for a city and select it, or tap "Use my location" and allow access. The coordinates are sent to Open-Meteo to fetch the UV index for that exact spot.

2

Read the UV now

See the current UV index and its risk band, today's peak UV and when it hits, plus an hour-by-hour UV curve for the rest of the day. Check the full weather forecast for temperature and rain.

3

Plan ahead

Scan the 3-day UV outlook, use the UV index scale below to know when to cover up, and read more on the UV index and your health.

UV Index Scale

The global UV index runs from 0 upward. Higher means a greater risk of harm from unprotected sun exposure.

UV indexLevelWhat to do
0–2LowMinimal risk. No protection needed for most people.
3–5ModerateSeek shade around midday; wear SPF 30+, a hat and sunglasses.
6–7HighReduce sun 10am–4pm; SPF 30+, shade, hat and sunglasses.
8–10Very HighMinimize midday sun; skin burns quickly. SPF 30+, cover up.
11+ExtremeAvoid sun 10am–4pm; take all precautions — burns in minutes.

Frequently Asked Questions

What is a safe UV index?
A UV index of 0–2 is Low and safe for most people with minimal protection. From 3 (Moderate) upward, sun protection is recommended, and at 8 or above (Very High to Extreme) unprotected skin can burn quickly — shade and cover-up matter most between about 10am and 4pm.
Can you get sunburned at a UV index of 6?
Yes. UV 6 is High: unprotected fair skin can start to burn in roughly half an hour to an hour, and faster as the index climbs. Use SPF 30+, seek shade around midday, and wear a hat and sunglasses.
Why is the UV index higher in summer and at altitude?
UV is strongest when the sun is high, so it peaks around solar noon and in summer. It also rises with altitude — roughly 10–12% more UV per 1,000 m — because there is less atmosphere to absorb it, and snow, sand and water reflect it.
Is the UV index the same as temperature?
No. The UV index measures ultraviolet radiation, not heat. You can get a high UV index on a cool or cloudy day — which is why sunburn often surprises people in spring or at altitude.
Where does this UV data come from?
From Open-Meteo, a free, open weather API. When you pick a location, your browser requests the current, hourly and daily UV values directly from Open-Meteo. No API key or sign-up is required, and LK Forge shows no ads and does not track you.