New Haven UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index5.8
- Avg Clouds38%
- Max Temp20.3 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in New Haven, United States 
will reach a high of 5.8 today. This means a moderate level of sun exposure. See our tips below to stay safe!
Last checked: 2025-09-20
Hourly Forecast Chart
Today's Safety Tips
The sun is a bit strong. Find some shade during midday. Wear a hat, sunglasses, and use SPF 30+ sunscreen if you'll be outside for a while.
New Haven's UV Index
New Haven's UV index varies throughout the year, reaching higher levels during summer months, often between 6 and 8, and lower levels in winter, usually around 1 to 2. The UV index peaks around noon when the sun is strongest.
Weather Seasons
New Haven experiences four distinct seasons with warm, humid summers and cold winters. Spring and fall are mild with moderate temperatures and occasional rain. Snow is common in winter, while summer sees frequent sunshine and thunderstorms.
New Haven's Climate
Compared to the wider Northeastern United States, New Haven has similar weather patterns but tends to be slightly milder because it's near the coast. Neighboring states like Connecticut and Rhode Island share similar seasonal changes and UV levels.
Hourly UV Index Trend
See the UV index hour by hour for New Haven. When the level is high, it's smart to find some shade.
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