San Bernardino UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index3.1
- Avg Clouds91%
- Max Temp13.6 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in San Bernardino, United States 
will reach a high of 3.1 today. This means a moderate level of sun exposure. See our tips below to stay safe!
Last checked: 2025-12-25
Hourly Forecast Chart
Today's Safety Tips
The sun is a bit strong. Find some shade during midday. Wear a hat, sunglasses, and use SPF 30+ sunscreen if you'll be outside for a while.
San Bernardino's UV Index
San Bernardino's UV index ranges mostly from moderate to high, peaking during summer months around 8 to 10, and lowering to about 2 to 4 in winter, reflecting strong sun exposure especially in warmer seasons.
Weather Seasons
The city experiences hot, dry summers with temperatures often above 90°F (32°C), and mild, wetter winters where temperatures range from 40°F to 65°F (4°C to 18°C). Rain usually falls between November and March.
San Bernardino's Climate
Compared to other parts of Southern California, San Bernardino is warmer and drier than coastal cities like Los Angeles but cooler than desert areas such as Palm Springs. It is less humid and sunnier than regions farther north in California and neighboring states.
Hourly UV Index Trend
See the UV index hour by hour for San Bernardino. When the level is high, it's smart to find some shade.
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