Philadelphia UV index in April
Typical ultraviolet levels for Philadelphia during April, from the past year of data.
High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
April average
Philadelphia UV index — monthly trend
Average UV index by month over the past year, with April highlighted.
Visiting Philadelphia in April?
In April, Philadelphia's typical UV index is about 6.4289 — a high risk level. High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
Across the year, Philadelphia sees the strongest UV in Summer, peaking around 9.8446 in July. Plan sun protection accordingly.