UV index in Sunk Island today
At 53.7°N, Sunk Island is surrounded by reflective water. Typical summer peaks of 8–10 (very high) plus sea glare make this a full-cover, full-sunscreen place. This is cool-temperate Britain: summer UV still climbs into the very high band, and spring arrives before the weather feels hot.
Live reading · data by Open-Meteo · reference monitoring by ARPANSA
Today and tomorrow in Sunk Island
Peak UV, temperature and conditions for Sunk Island. 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 island day in Sunk Island can still sit at protection levels. Why you burn on cloudy days.
When Sunk Island needs sun protection
Sun protection is needed in Sunk Island typically from May through September, and any clear spring or fall day UV reaches 3. With water on more than one side, reflection is the default, not a beach-only problem.
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
Frequently asked questions
- When does Sunk Island need sun protection?
- Whenever the UV index is 3 or above. In Sunk Island that is typically from May through September, and any clear spring or fall day UV reaches 3. The UK Health Security Agency and WHO use the same UV Index scale worldwide.
- Does Sunk Island need sun protection in winter?
- Not every day. Midwinter middays in Sunk Island often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.
- Does the water make UV worse in Sunk Island?
- It can. Sand and water reflect ultraviolet, so skin that is not covered (including under the chin and on the tops of feet) picks up extra dose on top of the direct sun. The live UV index on this page is the sky reading; reflection is on top of that.