Chula Vista UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index8.9
- Avg Clouds20%
- Max Temp24.2 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Chula Vista, United States 
will reach a high of 8.9 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.
Chula Vista's UV Index
Chula Vista's UV index varies seasonally, typically ranging from moderate levels in winter to high levels in summer, peaking around 8 to 10 during late spring and early summer months. This means the sun's rays are stronger in those times of the year.
Weather Seasons
The weather in Chula Vista shows warm, dry summers and mild, wetter winters. Temperatures are generally comfortable year-round, with summer highs in the mid-70s to mid-80s Fahrenheit and winter lows rarely dropping below the 40s or 50s.
Chula Vista's Climate
Compared to the wider Southern California region, Chula Vista has a similar Mediterranean climate but is slightly cooler due to its coastal location. It's milder and less rainy than inland areas and typically warmer and drier than northern California cities.
Hourly UV Index Trend
See the UV index hour by hour for Chula Vista. When the level is high, it's smart to find some shade.
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