UV Index
UV Index
Today's UV index in Westerville, United States 
will be up to 9.7, indicating a very 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: 2025-06-16
With a UV index of 9.7 in Westerville, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
Westerville’s UV index can reach high levels, especially in summer months, often between 7 to 10. During winter, the UV index drops to low or moderate levels, usually around 1 to 3.
Westerville experiences four seasons, with cold, snowy winters and hot, humid summers. Spring and fall bring mild temperatures and moderate rainfall. Spring and summer have longer daylight, increasing UV exposure.
Compared to nearby cities like Columbus, Westerville’s weather patterns are very similar due to close proximity. It has milder winters than northern states like Michigan but hotter summers than northern parts of Ohio or Indiana.
See the UV index hour by hour for Westerville, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.