United States
UV Index in Connecticut — Current UV Levels
Check the current UV index for 4 cities in Connecticut. Select a city below for real-time UV data, hourly forecasts, and sun protection advice.
UV Index by City in Connecticut
Sun Safety in Connecticut
UV levels in Connecticut vary by season, altitude, and proximity to water. The WHO recommends sun protection whenever UV reaches 3 or higher. Apply SPF 30+ before outdoor activities and reapply every 2 hours.
UV Index in Connecticut: What to Know
Connecticut has moderate UV typical of the Northeast, peaking at high levels in midsummer around the June solstice.
Across Connecticut, the UV index peaks in the four hours around solar noon (roughly noon to 3 PM local time). The World Health Organization recommends sun protection whenever the UV index reaches 3 or higher: apply broad-spectrum SPF 30 at UV 3–5, SPF 50 at UV 6–7, and SPF 50+ with reapplication every two hours at UV 8 and above. Check the live, hour-by-hour UV index for Bridgeport, Hartford and New Haven on the city pages above before heading outdoors.
Common Questions About UV in Connecticut
When is the UV index highest in Connecticut?
UV in Connecticut is strongest between noon and 3 PM local time, and highest in the summer months when the sun sits highest in the sky. Check the hourly chart for Bridgeport above to see today's exact peak.
Do I need sunscreen in Connecticut?
Yes — whenever the UV index reaches 3 or higher, which in Connecticut covers most of the daytime hours from spring through fall. Even on cloudy days, up to 80% of UV can reach the ground.
How accurate is this UV data for Connecticut?
Our UV index for Connecticut comes from Open-Meteo, which aggregates national weather-service models, and updates every 15 minutes. Levels follow the official WHO global solar UV index scale.