UV Index
Boise UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index7.9
- Avg Clouds12%
- Max Temp36.1 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Boise, United States 
will reach a high of 7.9 today. This means a high level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-23
Hourly Forecast Chart
Today's Safety Tips
Be careful! The sun's rays are strong. Try to stay in the shade between 10 a.m. and 4 p.m. Wear a hat, sunglasses, and reapply SPF 30+ sunscreen every 2 hours.
Boise's UV Index
Boise's UV index varies from low in winter to moderate and sometimes high in summer, peaking around midday in July. Seasonal patterns include cold, snowy winters and hot, dry summers with occasional thunderstorms. Compared to the nearby Pacific Northwest, Boise is drier and sunnier, with warmer summers than cities like Seattle but less humid than places further east, like Denver.
Hourly UV Index Trend
See the UV index hour by hour for Boise. When the level is high, it's smart to find some shade.
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