UV Index Perth today
Measured 3:45 pm AWST on Tuesday 27 October · just now
Slip on a shirt, slop on sunscreen, slap on a hat.
Sun protection times
Calculated from the clear-sky forecast, so it assumes no cloud. Cloud may reduce the UV level on the day, but it can clear at any time — treat these as the hours to be careful.
Today's forecast
Peak 9.6 at 12:00 pm, with cloud included.
Tomorrow
Forecast to peak at 9.8 Very High around 12:00 pm.
This time of year
In October, Perth's UV typically peaks around 8.4 Very High.
Across 2016–2025, ARPANSA's measurements reached:
- 3 or more, when sun protection is needed, on every October day
- 8 or more, Very High or worse, on 76% of October days
- 11 or more, Extreme, on 2% of October days
Calculated by uvatlas from ARPANSA's historical UV measurements on data.gov.au, licensed CC BY 2.5 AU. Each day's peak is its highest five-minute average; 310 October days.
What to do today
At 2.5 Moderate.
- Slip on clothing that covers your shoulders and back.
- Slop on SPF 50+ sunscreen 20 minutes before going out, and reapply every two hours.
- Slap on a broad-brimmed hat, and wrap on sunglasses.
- Seek shade around the middle of the day.
What the UV index numbers mean
Nearby
UV observations courtesy of ARPANSA.
© Commonwealth of Australia as represented by the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA). ARPANSA disclaimer.
Forecast contains modified Copernicus Atmosphere Monitoring Service information 2026. Neither the European Commission nor ECMWF is responsible for any use of this information.