What is the UV index?

The UV index measures the strength of the sun's ultraviolet radiation at the Earth's surface on a scale from 0 (no risk) to 11+ (extreme). In Australia, UV regularly reaches 11+ in summer — among the highest in the world.

When is UV highest in Australia?

UV is strongest between 10am and 3pm AEST/AEDT, typically peaking around solar noon. Levels are highest in summer (December–February) and across northern Australia year-round.

Can you get sunburnt when the UV index is below 3?

Skin damage from UV is unlikely when the index is below 3, so sun protection generally isn't required. However, people with very fair skin or those on photosensitising medication should still take care.

What UV level requires sun protection?

Cancer Council Australia and ARPANSA recommend sun protection (SPF 50+ sunscreen, hat, sunglasses, protective clothing, shade) whenever the UV index reaches 3 or higher.

How accurate is the UV index forecast?

Forecasts use validated solar radiation models (Open-Meteo, ARPANSA, ECMWF) and are accurate to within ±1 UV unit under clear skies. Heavy cloud, smoke or haze can lower actual UV by 20–80%.

Does cloud cover block UV radiation?

No — up to 80% of UV passes through light cloud cover. You can still get sunburnt on overcast days, especially when the forecast UV is 6 or higher.

Mandurah UV Index — Live Readings & Forecast

Name: UV index observations and forecast — Mandurah
Creator: Open-Meteo
License: https://open-meteo.com/en/license

Get Mandurah weather & UV alerts

Push, email & SMS notifications for severe weather warnings in your area.

Get alerts

Live UV index — Mandurah

Current UV reading and outlook for the next 12 hours. Data refreshes hourly from Open-Meteo.

Nearby UV pages

Compare Mandurah's UV reading with other centres in Western Australia.

Can't find your location?

Visit our local weather forecast page, search for your town or suburb, and UV information will be shown alongside the weather for that location.

Search locations

7-day UV forecast — Mandurah

Daily peak UV index for the next week. Sun protection is required whenever UV reaches 3 or above.

Mandurah's combination of clear WA summer skies, long daylight hours and a heavily outdoor-oriented community (beaches, the Peel-Harvey estuary, crabbing and boating) produces UV doses among the highest in southern Australia. The city records UV 11–13 (extreme) on most clear summer afternoons between October and March, and remains in the high band well into autumn. Cancer Council WA notes that the sea breeze along the Peel coast frequently masks the underlying UV — air temperature is not a reliable indicator of sunburn risk. Solar noon UV peaks around 12:30pm AWST (WA does not observe daylight saving). ARPANSA recommends sun protection whenever the UV index reads 3 or higher, which in Mandurah applies to every daylight hour from late September through to April.

Peak UV season in Mandurah: October to April.

UV Index Scale & Sun Protection

Low (0–2)
No protection required
Moderate (3–5)
Sunscreen, hat, sunglasses
High (6–7)
Protection essential, seek shade midday
Very High (8–10)
Extra protection, avoid sun 10am–4pm
Extreme (11+)
Stay indoors when possible

Scale follows the WHO/ARPANSA Global Solar UV Index. Source: ARPANSA & Cancer Council Australia.

Sun protection in Mandurah

Cancer Council and ARPANSA recommend the SunSmart five whenever the UV index reaches 3: slip on protective clothing, slop on SPF 50+ sunscreen, slap on a broad-brimmed hat, seek shade and slide on sunglasses. UV is invisible and unrelated to temperature — cool, overcast days in Mandurah can still deliver a sunburn dose because up to 80% of UV penetrates light cloud.

National UV index hub →7-day Australian UV forecast →UV index Western Australia →Mandurah weather hub →

UV Index Mandurah — FAQs

UV data: Open-Meteo. Reference guidance: ARPANSA, Cancer Council Australia, Bureau of Meteorology.