Hartford UV index in September
Typical ultraviolet levels for Hartford during September, from the past year of data.
UV moderado. Protege tu piel durante las horas del mediodía; se recomienda usar sombrero y aplicar protector solar.
September average UTC
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 moderado risk level. UV moderado. Protege tu piel durante las horas del mediodía; se recomienda usar sombrero y aplicar protector solar.
Across the year, Hartford sees the strongest UV in Summer, peaking around 7.6883 in July. Plan sun protection accordingly.