Does Mount Wilson need sun protection in winter?

Not every day. Midwinter middays in Mount Wilson often sit below UV 3, but clear late-winter days (from August in much of New South Wales) cross the threshold before the weather feels like spring. Check the live index.

Can you burn on a cool day in Mount Wilson?

Yes. UV is not heat. A cool, windy or lightly cloudy day in Mount Wilson can still sit at UV 3 or above, especially from spring through autumn. Temperature on this page is for context only; the UV number is what decides protection.

UV index in Mount Wilson today

Q: When does Mount Wilson need sun protection?

Whenever the UV index is 3 or above. In Mount Wilson that is typically from September through April, and any other day UV reaches 3. SunSmart and ARPANSA use the same rule Australia-wide.

Mount Wilson sits in New South Wales high country at 33.5°S, where thinner air lets more UV through than the cool temperature suggests. Summer middays typically reach 10–12 (very high to extreme). This is warm-temperate Australia: a long protection season from early spring through autumn, with the odd clear winter midday that still burns.

Live reading · data by Open-Meteo · reference monitoring by ARPANSA

Today and tomorrow in Mount Wilson

Peak UV, temperature and conditions for Mount Wilson. Tomorrow’s peak is the number to plan around if you’re heading out in the middle of the day.

Weather conditions right now

Cloud and rain cut heat more than they cut UV. A partly cloudy high-country day in Mount Wilson can still sit at protection levels. Why you burn on cloudy days.

When Mount Wilson needs sun protection

Sun protection is needed in Mount Wilson typically from September through April, and any other day UV reaches 3. Altitude lets more UV through; a cool lookout is still protection weather when the index is 3 or above.

The threshold, per SunSmart and ARPANSA: whenever UV reaches 3 or above, Slip on covering clothing, Slop on SPF 50+ sunscreen, Slap on a hat, Seek shade and Slide on sunglasses. Read the full sun safety guide.

The UV scale at a glance

0–2Low
3–5Moderate
6–7High
8–10Very high
11+Extreme

Local support in New South Wales

Cancer Council NSW: Sun-safety programs and skin-cancer support across New South Wales.

Frequently asked questions

When does Mount Wilson need sun protection?: Whenever the UV index is 3 or above. In Mount Wilson that is typically from September through April, and any other day UV reaches 3. SunSmart and ARPANSA use the same rule Australia-wide.
Does Mount Wilson need sun protection in winter?: Not every day. Midwinter middays in Mount Wilson often sit below UV 3, but clear late-winter days (from August in much of New South Wales) cross the threshold before the weather feels like spring. Check the live index.
Can you burn on a cool day in Mount Wilson?: Yes. UV is not heat. A cool, windy or lightly cloudy day in Mount Wilson can still sit at UV 3 or above, especially from spring through autumn. Temperature on this page is for context only; the UV number is what decides protection.