Seattle UV index in April

Typical ultraviolet levels for Seattle during April, from the past year of data.

Moderate Seattle

Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.

April average

April UV
5.4692
Risk level
Moderate
Yearly peak
9.4524
Peak month
July

Seattle UV index — monthly trend

Average UV index by month over the past year, with April highlighted.

How this is calculated

Visiting Seattle in April?

In April, Seattle's typical UV index is about 5.4692 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.

Across the year, Seattle sees the strongest UV in Summer, peaking around 9.4524 in July. Plan sun protection accordingly.