# UV Index Singapore Today: Live Reading and Sun Advice

Singapore's UV index right now, live from NEA, with today's hour-by-hour trend, the UV category (low to extreme) and the sun protection to use.

Interactive tool: https://lookup.sg/tools/uv-index-singapore

## How this works
The reading comes live from the National Environment Agency (NEA) through data.gov.sg and refreshes every 5 minutes. NEA measures the UV index at the Changi Meteorological Station between 7am and 7pm; the data feed gives one value per hour, and this page shows the latest one with the hour it is for and when NEA published it.

NEA's categories are Low (0 to 2), Moderate (3 to 5), High (6 to 7), Very high (8 to 10) and Extreme (11 and above). Cloud and rain lower the index, so it can differ in other parts of the island.

Protection advice follows the World Health Organization: at 0 to 2 you can safely enjoy being outside; at 3 to 7 seek shade during midday hours and wear a shirt, sunscreen and a hat; at 8 and above avoid being outside during midday hours. NEA and MOH advise sunscreen of at least SPF 30, an umbrella or shade, UVA/UVB sunglasses and a broad-brimmed hat, especially between 11am and 3pm, when UV is highest.

## FAQs
### What is a high UV index in Singapore?
NEA classes a UV index of 6 to 7 as High, 8 to 10 as Very high and 11 and above as Extreme. NEA says UV levels are highest between 11am and 3pm, so that is when protection matters most.

### What time is UV strongest in Singapore?
Between 11am and 3pm, according to NEA. The hourly chart on this page shows how today's index has built up since 7am.

### Do I need sunscreen at UV index 3?
Yes. WHO advises sun protection from a UV index of 3: seek shade during midday hours and wear a shirt, sunscreen and a hat. NEA recommends sunscreen of at least SPF 30.

### Where is Singapore's UV index measured?
At NEA's Changi Meteorological Station, between 7am and 7pm. Because cloud and rain reduce UV, conditions elsewhere on the island can be higher or lower than the reading.

## Sources
- [NEA: Ultraviolet index](https://www.nea.gov.sg/weather/ultraviolet-index)
- [data.gov.sg: Ultraviolet Index (UVI) dataset (NEA)](https://data.gov.sg/datasets/d_1b676cd174a9af4704fdb3f9aa58ff5e/view)
- [WHO: Radiation, the ultraviolet (UV) index](https://www.who.int/news-room/questions-and-answers/item/radiation-the-ultraviolet-(uv)-index)

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Source: Lookup (https://lookup.sg) · Data as of October 2026 · Listings compiled from Singapore government open data (data.gov.sg), OneMap and Overture Maps places. Free listings never show contact details; contact details appear only on Lookup Verified listings.