Sunny Hours / UV index / US / Boise

UV index in Boise, ID today

Today's peak UV index in Boise is 5 (moderate), around 2pm. It is 3 or above from 11am to 6pm, which is when the EPA recommends protecting your skin. Tomorrow's peak is 4 (moderate).

  • UV now5 (moderate)
  • Peak today5 (moderate)
  • Time of peakAround 2pm
  • Hours at 3 or above7
  • Sunrise7:51 am
  • Sunset7:11 pm

UV index in Boise by hour, next 7 days

Each square is one daylight hour and the number in it is the UV index for that hour. The numbers across the top are the hour of the day.

7a8a9a10a11a12p1p2p3p4p5p6p7p
Today0001345554310
Sat, Oct 100001234443210
Sun, Oct 110001233322110
Mon, Oct 120001234543210
Tue, Oct 130001244544210
Wed, Oct 140001334443210
Thu, Oct 150001344443210
  • Low (1 to 2)
  • Moderate (3 to 5)
  • High (6 to 7)
  • Very high (8 to 10)

Day by day

DayPeak UVLevelAt 3 or aboveSunriseSunset
Today5moderate11am to 6pm7:51 am7:11 pm
Sat, Oct 104moderate12pm to 5pm7:53 am7:09 pm
Sun, Oct 113moderate12pm to 3pm7:54 am7:07 pm
Mon, Oct 125moderate12pm to 5pm7:55 am7:06 pm
Tue, Oct 135moderate12pm to 5pm7:56 am7:04 pm
Wed, Oct 144moderate11am to 5pm7:57 am7:02 pm
Thu, Oct 154moderate11am to 5pm7:59 am7:01 pm

What today's level means

Today's peak of 5 is in the moderate band. The guidance for that band is: seek shade around midday, cover up and wear sunscreen. The EPA recommends protecting your skin whenever the index is 3 or higher, and you can burn even when it is cloudy.

The UV index depends mostly on how high the sun is in the sky, so it peaks around the middle of the day and is far higher in summer than in winter. It is not the same as temperature. For the full scale and what it means for tanning and burning, see what the UV index numbers mean.

UV tells you how strong the sun is, not whether it will be out. For that, see the sunshine forecast for Boise.

UV index in other cities

UV forecast for Boise, Idaho. Updated October 9 at 2:41 PM. This is a forecast, not a measurement. Weather data by Open-Meteo.