UV index in Saint Johns River Estates today

Saint Johns River Estates is a Florida river suburb at 28.8°S. Typical summer peaks of 10–12 (very high to extreme) do not ease just because you are under a river red gum's thin shade. This is subtropical sun: protection weather for much of the year, with winter middays that still often reach 3 or more.

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

Today and tomorrow in Saint Johns River Estates

Peak UV, temperature and conditions for Saint Johns River Estates. 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 Saint Johns River Estates can still sit at protection levels. Why you burn on cloudy days.

When Saint Johns River Estates needs sun protection

Sun protection is needed in Saint Johns River Estates most of the year, including many winter middays. Time on the river reflects UV back up, so banks and boats need the same cover as a beach day.

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 Saint Johns River Estates need sun protection?
Whenever the UV index is 3 or above. In Saint Johns River Estates that is most of the year, including many winter middays. The EPA Sun Safety action steps apply at the same threshold used worldwide.
Does Saint Johns River Estates need sun protection in winter?
Usually yes. At 28.8°N, winter middays in Saint Johns River Estates still commonly reach UV 3 or higher. Check today's live reading on this page before a long lunch outside.
Does the water make UV worse in Saint Johns River Estates?
It can. The river 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.

Live UV nearby