Chula Vista UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index6.4
- Avg Clouds25%
- Max Temp23.6 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Chula Vista, United States 
will reach a high of 6.4 today. This means a high level of sun exposure. See our tips below to stay safe!
Last checked: 2025-10-09
Hourly Forecast Chart
Today's Safety Tips
Be careful! The sun's rays are strong. Try to stay in the shade between 10 a.m. and 4 p.m. Wear a hat, sunglasses, and reapply SPF 30+ sunscreen every 2 hours.
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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