What is the UV index in Hartford right now?

See the live UV index for Hartford 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 Hartford?

UV in Hartford 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 Hartford 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 Hartford Today — Check Current UV Levels in Hartford, Connecticut

Current UV Index in Hartford

1.2 Low

Low risk. Enjoy being outdoors.

Updated at 3:30 AM local time · Data from Open-Meteo

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

Current UV Index in Hartford

The UV index in Hartford changes throughout the day, typically peaking between 10am and 2pm local time. Connecticut River Valley with moderate summer UV peaks

Hourly UV Forecast for Hartford Today

Planning outdoor activities in Hartford, Connecticut? 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 Hartford

Plan your week in Hartford 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 Hartford

UV Index	Level	What to Do in Hartford
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 Hartford

Hartford typically experiences UV index values of 7-9 during peak season (June-August) and 1-2 during the off-season. Sharp seasonal contrast — summer UV can be surprisingly strong while winter UV is minimal

Best Time for Outdoor Activities in Hartford

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

Recommended SPF for Hartford

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

Hartford UV Index by Season

High UV Season in Hartford

UV levels in Hartford are highest during summer when days are longest, with the UV index regularly reaching 7-9. Protective clothing, wide-brim hats, and UV-blocking sunglasses are recommended alongside sunscreen.

Low UV Season in Hartford

UV levels drop in winter when the sun sits low, typically measuring 1-2. 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 Hartford

What is the average UV index in Hartford?

The average UV index in Hartford ranges from 1-2 during the low season to 7-9 during peak months (June-August).

When is UV highest in Hartford?

UV is highest in Hartford during summer when days are longest, peaking between 10am and 2pm local time.

Do I need sunscreen in Hartford?

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

UV Index Near Hartford

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About UV Index in Hartford

UV data for Hartford, Connecticut 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 Hartford are approximate and for informational purposes only — not medical advice.