UV Index
UV Index
Today's UV index in Gilbert, United States 
will be up to 10.3, 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: 2025-05-09
With a UV index of 10.3 in Gilbert, 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.
Gilbert’s UV index is very high during summer, often reaching levels of 10 or more, indicating strong sun exposure. In winter, the UV index is lower, around 3 to 5, reflecting milder sun intensity.
Gilbert has hot summers with temperatures often above 100°F (38°C) and mild winters with highs around 65-70°F (18-21°C). Rain mostly falls in the monsoon season from June to September, with dry weather the rest of the year.
Compared to nearby Phoenix, Gilbert has a similar hot desert climate but slightly less urban heat. It’s much hotter and drier than places farther north like Flagstaff, and much sunnier and warmer than northern states like Colorado or Utah.
See the UV index hour by hour for Gilbert, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.