UV Index
Jacksonville UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index10.4
- Avg Clouds85%
- Max Temp31.2 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Jacksonville, United States 
will reach a high of 10.4 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-12
Hourly Forecast Chart
Today's Safety Tips
The risk is very high. It's best to stay out of the sun between 10 a.m. and 4 p.m. If you must be outside, wear protective clothing and apply sunscreen often.
Jacksonville's UV Index
Jacksonville's UV index varies from low in winter to very high in summer, often reaching 8 or 9 on sunny days, indicating strong sunlight exposure during peak months. The city experiences hot, humid summers with frequent afternoon thunderstorms and mild, drier winters. Compared to other southeastern U.S. cities, Jacksonville has a slightly higher humidity and more sun, but its weather is less extreme than in Florida's southern regions or Gulf Coast areas.
Hourly UV Index Trend
See the UV index hour by hour for Jacksonville. When the level is high, it's smart to find some shade.
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