UV Index Today in Naples, Florida
Naples's UV Climate
Naples sits on the Gulf coast of Southwest Florida, where a low latitude and long beach season combine to produce some of the strongest sun exposure in the state. The city's famous white-sand beaches along the Gulf of Mexico amplify UV through reflection, and the outdoor lifestyle — golf, boating, beach walks along the Naples Pier — keeps residents and seasonal visitors in the sun for much of the year. Snowbirds arriving from northern states in winter are often caught off guard by how strong the midday sun remains even in January.
Average Annual UV Index
8.0
Peak UV Season
March - October
Sunny Days per Year
264
Typical UV Index by Season in Naples
| Season | Typical Midday UV | Protection Needed |
|---|---|---|
| Summer | Very High to Extreme (9-11+) | SPF 30+, hat, sunglasses; shade from 10 AM – 4 PM |
| Spring & Fall | High to Very High (7-9) | SPF 30+ for extended time outdoors |
| Winter | Moderate to High (4-6) | Sunscreen for long midday exposure; more on snow |
UV Index in Nearby Cities
- UV Index in Miami, FL103 mi away
- UV Index in Delray Beach, FL109 mi away
- UV Index in Key West, FL110 mi away
- UV Index in West Palm Beach, FL115 mi away
Practical Tips for Outdoor Activities
Make the most of outdoor activities while staying safe in Collier County:
- Check UV index and weather radar before planning outdoor activities
- Schedule outdoor activities during low UV hours
- Use appropriate sun protection based on UV levels
- Stay hydrated during outdoor activities
- Take regular breaks in shaded areas
- Monitor weather conditions for changes
- Be prepared for sudden weather changes
- Know the signs of heat-related illness
- Wear a hat and protective clothing
- Check visibility conditions before outdoor plans
- Stay alert to weather alerts and warnings
UV and Weather in Collier County
Learn about Collier County's unique climate patterns, UV radiation levels, and how they affect your daily life. Enter your zip code for location-specific weather radar data and UV forecasts to help you make informed decisions about outdoor activities and sun protection.
Climate and UV Patterns
Naples has a tropical savanna climate with a pronounced dry season from November through April and a wet season from May through October. UV index values routinely reach 10-11+ from late spring through summer, and even the winter dry season sees midday readings of 4-6 on clear days. Because the dry season is also the sunniest stretch of the year, winter in Naples delivers more cumulative UV than many northern cities see in summer.
UV Index and Health Impact
Understanding UV radiation levels is crucial for protecting your health. Typical clear-day UV index values in Naples through the year:
- Summer: Very High to Extreme (9-11+)
- Spring/Fall: High to Very High (7-9)
- Winter: Moderate to High (4-6)
- Peak UV hours: 10 AM - 4 PM
- Cloud cover can reduce UV by 20-40%, but does not eliminate it
- Clear skies bring maximum UV exposure
Local Weather Patterns
During the wet season, Naples follows a reliable daily rhythm: clear, intensely sunny mornings followed by afternoon thunderstorms that build inland and drift toward the coast. That pattern means the most dangerous UV window — roughly 10 AM to 2 PM — is usually cloud-free even on days that end in rain. Gulf breezes keep beach temperatures comfortable, which encourages longer sun exposure than people realize. The dry season brings weeks of uninterrupted sunshine with low humidity, ideal conditions for maximum UV penetration.
Frequently Asked Questions About UV in Naples
What is the UV index in Naples today?
The live UV index for Naples, FL is shown at the top of this page and updates throughout the day, along with today's maximum and an hourly forecast.
When is the sun strongest in Naples?
UV radiation is strongest between 10 AM and 4 PM. Naples's peak UV season runs March - October, when the midday index typically reaches Very High to Extreme (9-11+).
How high does the UV index get in Naples?
Summer days in Naples typically reach Very High to Extreme (9-11+). Spring and fall usually bring High to Very High (7-9), while winter values are typically Moderate to High (4-6).
Do I need sunscreen in Naples during winter?
Yes. Winter is Naples' sunny dry season, and midday UV regularly reaches levels that damage unprotected skin, so daily sunscreen is recommended year-round.
How sunny is Naples compared to other cities?
Naples averages about 264 sunny days per year with an average annual UV index around 8.0.