UV Index
UV Index
Today's UV index in Penzance, United States 
will be up to 11.1, indicating a extreme level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-21
UV index at 11.1 in Penzance means extreme risk: limit outdoor time especially from 10 a.m. to 4 p.m., actively seek shade, wear protective clothing, broad-brimmed hat, apply SPF 30+ sunscreen every 2 hours, and wear UV-blocking sunglasses. Watch for bright surfaces like water and snow increasing UV exposure.
Penzance is a town in Massachusetts, United States. The UV index there usually ranges from low to moderate, generally between 2 and 6, depending on the season and cloud cover.
The area experiences four distinct seasons: cold winters with occasional snow, mild springs, warm summers, and cool autumns. Rainfall is fairly evenly spread throughout the year, with wetter months in the spring and fall.
Compared to the wider New England region, Penzance has a coastal climate that can be milder in winter and cooler in summer. Neighboring towns in Massachusetts share similar weather patterns, but inland areas tend to be colder in winter.
See the UV index hour by hour for Penzance, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.