Today's UV index in San Juan, Puerto Rico will be up to 11.8, indicating extreme risk of harm from the sun's UV rays for the average person.
If the UV index reading is 11 or higher, there's an extreme risk of harm from unprotected sun exposure.
With San Juan's UV index reaching up to 11.8 today, it's crucial to take all necessary precautions to avoid unprotected skin and eye damage, as they can burn in a matter of minutes.
It's best to avoid sun exposure altogether between 10 a.m. and 4 p.m. If you must be outdoors, seek shade and wear sun protective clothing, a wide-brimmed hat, and UV-blocking sunglasses.
Don't forget to generously apply broad-spectrum SPF 30+ sunscreen every two hours, even on cloudy days and after swimming or sweating.
Remember that bright surfaces like sand, water, and snow can increase UV exposure, so take extra care.