Niteroi UV index in September
Typical ultraviolet levels for Niteroi during September, from the past year of data.
Very High
Niteroi
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
10.8
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
10.8431
Risk level
Very High
Yearly peak
16.1357
Peak month
January
Niteroi UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Niteroi in September?
In September, Niteroi's typical UV index is about 10.8431 — a very high risk level. Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
Across the year, Niteroi sees the strongest UV in Winter, peaking around 16.1357 in January. Plan sun protection accordingly.
