New Haven UV index in September
Typical ultraviolet levels for New Haven during September, from the past year of data.
High
New Haven
High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
6.8
UV Index
September average
Low
Moderate
High
Very High
Extreme
September UV
6.7903
Risk level
High
Yearly peak
9.494
Peak month
July
New Haven UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting New Haven in September?
In September, New Haven's typical UV index is about 6.7903 — a high risk level. High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
Across the year, New Haven sees the strongest UV in Summer, peaking around 9.494 in July. Plan sun protection accordingly.
