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
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.
