UV Index
UV Index
Today's UV index in Portland, United States 
will be up to 6.8, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-09
With Portland's UV index reaching 6.8, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Portland's UV index varies throughout the year, generally ranging from low in the winter to moderate or high in the summer months. The highest UV levels usually occur in June and July.
Portland experiences mild, wet winters and warm, dry summers. Rain is common from October to April, while July and August are the driest and sunniest months. Spring and fall bring moderate temperatures and some rain.
Compared to the Pacific Northwest, Portland gets less rain than Seattle but more than cities east of the Cascade Mountains. It has cooler, wetter conditions than California cities but milder winters than northern states like Montana or Minnesota.
See the UV index hour by hour for Portland, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.