UV index today  UV Index

Boise UV Index Today

Day Summary

The UV index in Boise, United States Flag of United States will reach a high of 8.9 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!

Last checked: 2025-08-01

Hourly Forecast Chart

Today's Safety Tips

The risk is very high. It's best to stay out of the sun between 10 a.m. and 4 p.m. If you must be outside, wear protective clothing and apply sunscreen often.

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.

Disclaimer

* The information on this page about the UV index in Boise is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.