Rotterdam UV index in September

Typical ultraviolet levels for Rotterdam during September, from the past year of data.

Moderate Rotterdam

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

September average

September UV
5.0153
Risk level
Moderate
Yearly peak
8.2557
Peak month
July

Rotterdam UV index — monthly trend

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

How this is calculated

Visiting Rotterdam in September?

In September, Rotterdam's typical UV index is about 5.0153 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.

Across the year, Rotterdam sees the strongest UV in Summer, peaking around 8.2557 in July. Plan sun protection accordingly.