UV Index
UV Index
Today's UV index in Monterrey, Mexico 
will be up to 11.8, 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: 2025-05-27
UV index at 11.8 in Monterrey 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.
The UV index in Monterrey is usually high, often reaching levels between 7 and 11 during the sunny months, especially in spring and summer, indicating strong sun exposure.
Monterrey experiences hot summers with temperatures often above 35°C (95°F) and mild winters around 12-20°C (54-68°F). Rain mainly falls in summer, while winters are dry and sunny.
Compared to nearby cities in northern Mexico, Monterrey is hotter and drier in summer but cooler in winter. It generally has less rain and higher UV levels than coastal Mexican cities. Neighboring Texas cities are cooler and wetter.
See the UV index hour by hour for Monterrey, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.