Fresno UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index8.7
- Avg Clouds33%
- Max Temp41.8 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Fresno, United States 
will reach a high of 8.7 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-20
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.
Fresno's UV Index
Fresno's UV index often reaches high levels, especially during summer, with values around 8 to 11 on sunny days. Winter UV levels are lower, generally between 2 and 4. UV exposure is strongest midday.
Weather Seasons
The city experiences hot, dry summers with temperatures often above 90°F (32°C) and mild, wetter winters with temperatures around 50-60°F (10-15°C). Rainfall mostly occurs from November to March, while summers are mostly dry and sunny.
Fresno's Climate
Compared to nearby coastal cities, Fresno has hotter summers and less humidity. Its UV levels are higher than coastal areas but similar to other Central Valley locations. Neighboring states like Nevada and Arizona often have even stronger UV radiation and hotter summers.
Hourly UV Index Trend
See the UV index hour by hour for Fresno. When the level is high, it's smart to find some shade.
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