Portsmouth UV index in September
Typical ultraviolet levels for Portsmouth during September, from the past year of data.
Moderate
Portsmouth
Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
4.8
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
4.8194
Risk level
Moderate
Yearly peak
7.7811
Peak month
July
Portsmouth UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Portsmouth in September?
In September, Portsmouth's typical UV index is about 4.8194 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Across the year, Portsmouth sees the strongest UV in Summer, peaking around 7.7811 in July. Plan sun protection accordingly.
