Caerdydd UV index in September
Typical ultraviolet levels for Caerdydd during September, from the past year of data.
Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
September average
Caerdydd UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Caerdydd in September?
In September, Caerdydd's typical UV index is about 4.9212 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Across the year, Caerdydd sees the strongest UV in Summer, peaking around 8.0988 in July. Plan sun protection accordingly.