Does Southern Cross need sun protection in winter?

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

Can you burn on a cool day in Southern Cross?

Yes. UV is not heat. A cool, windy or lightly cloudy day in Southern Cross 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 Southern Cross today

Q: When does Southern Cross need sun protection?

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

Southern Cross is an inland Western Australia suburb at 31.2°S. Typical summer peaks of 10–12 (very high to extreme) arrive whether the day feels scorching or merely mild. 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 Southern Cross

Peak UV, temperature and conditions for Southern Cross. 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 day in Southern Cross can still sit at protection levels. Why you burn on cloudy days.

When Southern Cross needs sun protection

Sun protection is needed in Southern Cross typically from September through April, and any other day UV reaches 3. Inland heat or a cool change does not change the UV index; go by the number, not how the day feels.

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 Western Australia

Cancer Council WA: West Australian sun-safety campaigns and SunSmart schools.

Frequently asked questions

When does Southern Cross need sun protection?: Whenever the UV index is 3 or above. In Southern Cross that is typically from September through April, and any other day UV reaches 3. SunSmart and ARPANSA use the same rule Australia-wide.
Does Southern Cross need sun protection in winter?: Not every day. Midwinter middays in Southern Cross often sit below UV 3, but clear late-winter days (from August in much of Western Australia) cross the threshold before the weather feels like spring. Check the live index.
Can you burn on a cool day in Southern Cross?: Yes. UV is not heat. A cool, windy or lightly cloudy day in Southern Cross 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.