UV Index
UV Index
Today's UV index in Stockton, United States 
will be up to 8.8, 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: 2025-05-21
With a UV index of 8.8 in Stockton, 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.
Stockton's UV index varies seasonally, often reaching higher levels around midday in summer, typically ranging from moderate to high. In winter, the UV index is generally lower, reflecting the sun's weaker intensity.
Stockton experiences hot, dry summers with temperatures frequently above 90°F (32°C) and mild, wet winters. Rainfall mainly occurs between November and March, while summers remain mostly dry and sunny with occasional fog.
Compared to the wider Central Valley region in California, Stockton’s weather is quite typical with hot summers and mild winters. Neighboring areas like Sacramento share similar patterns, though coastal cities like San Francisco have cooler, foggier conditions year-round.
See the UV index hour by hour for Stockton, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.