Hartford UV index in September
Typical ultraviolet levels for Hartford during September, from the past year of data.
Moderate
Hartford
Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
5.5
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
5.5211
Risk level
Moderate
Yearly peak
7.6883
Peak month
July
Hartford UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Hartford in September?
In September, Hartford's typical UV index is about 5.5211 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Across the year, Hartford sees the strongest UV in Summer, peaking around 7.6883 in July. Plan sun protection accordingly.
