UV index today  UV Index

Santa Ana UV Index Today

Day Summary

The UV index in Santa Ana, United States Flag of United States will reach a high of 10.7 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!

Last checked: 2025-08-01

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.

Santa Ana's UV Index

The UV index in Santa Ana, United States, is usually moderate to high, especially during summer months, ranging between 5 and 9. It peaks around midday when the sun is strongest.

Weather Seasons

UV index

Santa Ana experiences mild, wet winters and hot, dry summers. Spring and autumn are short and pleasant with moderate temperatures. Rainfall mainly happens from November to March, with dry conditions the rest of the year.

Santa Ana's Climate

Compared to surrounding regions in Southern California, Santa Ana tends to be warmer and sunnier than coastal cities like Los Angeles. It is drier than areas to the north and east, such as the Inland Empire and deserts.

Hourly UV Index Trend

See the UV index hour by hour for Santa Ana. When the level is high, it's smart to find some shade.

Disclaimer

* The information on this page about the UV index in Santa Ana is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.