Grand Rapids UV index in September
Typical ultraviolet levels for Grand Rapids during September, from the past year of data.
High
Grand Rapids
High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
6.3
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
6.3362
Risk level
High
Yearly peak
8.9883
Peak month
July
Grand Rapids UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Grand Rapids in September?
In September, Grand Rapids's typical UV index is about 6.3362 — a high risk level. High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
Across the year, Grand Rapids sees the strongest UV in Summer, peaking around 8.9883 in July. Plan sun protection accordingly.
