What is the UV index in Chattanooga right now?

See the live UV index for Chattanooga above — it updates every 15 minutes from Open-Meteo data. The UV index runs from 0 (low) to 11+ (extreme); protection is advised once it reaches 3 or higher.

What time is UV highest in Chattanooga?

UV in Chattanooga usually peaks between noon and 3 PM local time, when the sun is highest. Check the hour-by-hour chart above for today's exact peak time.

What SPF do I need in Chattanooga today?

At UV 3–5 use SPF 30; at UV 6–7 use SPF 50; at UV 8 or above use SPF 50+ and reapply every 2 hours. The tool shows the exact SPF for the current UV level.

How long can I stay in the sun before burning?

It depends on your skin type and the UV level. At UV 8 (very high), fair skin can burn in 15–25 minutes. Use the sunburn-time calculator above for a personalised estimate.

Does UV protective clothing actually work?

Yes. A UPF 50 garment blocks 98% of UV radiation — more reliably than most sunscreens. It's the most dependable protection for long periods outdoors.

UV Index in Chattanooga Today — Check Current UV Levels in Chattanooga, Tennessee

Current UV Index in Chattanooga

0 None

No UV radiation. No protection needed.

Updated at 1:00 AM local time · Data from Open-Meteo

Check the real-time UV index in Chattanooga right now. Get the current UV level, hourly UV forecast for today, and a 7-day UV outlook for Chattanooga, Tennessee.

Current UV Index in Chattanooga

The UV index in Chattanooga changes throughout the day, typically peaking between 10am and 2pm local time. Tennessee Valley city with extended warm season UV

Hourly UV Forecast for Chattanooga Today

Planning outdoor activities in Chattanooga, Tennessee? Check our hourly UV breakdown to find the safest windows. Our forecast updates every 15 minutes with data from Open-Meteo weather services.

7-Day UV Forecast for Chattanooga

Plan your week in Chattanooga with our 7-day UV index forecast. See which days will have the highest UV so you can prepare with the right level of sun protection.

Sun Protection Guide for Chattanooga

UV Index	Level	What to Do in Chattanooga
0–2	Low	Enjoy outdoor activities freely. Sunscreen optional for most skin types.
3–5	Moderate	Wear SPF 30+ sunscreen. Seek shade during midday hours.
6–7	High	Limit midday sun. Use SPF 50+, wear a hat and sunglasses.
8–10	Very High	Minimize outdoor time 10am–4pm. Full sun protection essential.
11+	Extreme	Avoid direct sun. Stay indoors or in full shade during peak hours.

Typical UV Levels in Chattanooga

Chattanooga typically experiences UV index values of 9-10 during peak season (May-September) and 2-4 during the off-season. UV follows a clear seasonal curve peaking in midsummer

Best Time for Outdoor Activities in Chattanooga

The safest time for outdoor activities in Chattanooga is before 10am and after 4pm when UV levels drop significantly. Always check the current UV index before extended outdoor plans.

Recommended SPF for Chattanooga

During peak UV season in Chattanooga (May-September), dermatologists recommend SPF 50+ broad-spectrum sunscreen. Apply 15–20 minutes before sun exposure and reapply every 2 hours.

Chattanooga UV Index by Season

High UV Season in Chattanooga

UV levels in Chattanooga are highest from late spring through early fall, with the UV index regularly reaching 9-10. Protective clothing, wide-brim hats, and UV-blocking sunglasses are recommended alongside sunscreen.

Low UV Season in Chattanooga

UV levels drop during the mild winter months, typically measuring 2-4. SPF 30 is still recommended for extended outdoor time even during cooler months.

Recommended Sun Protection

EltaMD UV Clear SPF 46 — Face sunscreen. $37
Neutrogena Ultra Sheer SPF 70 — Body sunscreen. $10
Banana Boat Light As Air SPF 50 — Twin pack. $15
Roadbox UPF 50+ Sun Shirt — UV clothing. $19
Outdoor Research Sombriolet Hat — UPF 50+ hat. $45

We may earn a commission from purchases through these links.

Sun Safety FAQ for Chattanooga

What is the average UV index in Chattanooga?

The average UV index in Chattanooga ranges from 2-4 during the low season to 9-10 during peak months (May-September).

When is UV highest in Chattanooga?

UV is highest in Chattanooga from late spring through early fall, peaking between 10am and 2pm local time.

Do I need sunscreen in Chattanooga?

Yes — whenever the UV index reaches 3 or higher. During peak season (May-September), daily sunscreen use is strongly advised.

UV Index Near Chattanooga

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About UV Index in Chattanooga

UV data for Chattanooga, Tennessee is updated every 15 minutes via Open-Meteo weather services. Always check the current UV index before spending extended time outdoors.

Disclaimer: UV index data and sun protection recommendations for Chattanooga are approximate and for informational purposes only — not medical advice.