UV Index
UV Index
Today's UV index in San Antonio la Isla, Mexico 
will be up to 13.6, 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: 2025-07-20
UV index at 13.6 in San Antonio la Isla 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.
San Antonio la Isla typically experiences a UV index ranging from moderate to high, especially during the dry season months from March to May. UV levels decrease during the rainy season but remain significant.
The weather shows a clear pattern with a warm, dry season from November to April and a rainy season from May to October. Temperatures are generally warm year-round, with more rainfall and humidity in summer.
Compared to nearby Mexico City, San Antonio la Isla is slightly warmer and has less rainfall. It experiences similar seasonal changes but often enjoys more sunshine than areas to the east and south in the State of Mexico.
See the UV index hour by hour for San Antonio la Isla, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.