Niteroi UV index in December
Typical ultraviolet levels for Niteroi during December, from the past year of data.
Extreme
Niteroi
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
16.1
UV Index
December average UTC
Low
Moderate
High
Very High
Extreme
December UV
16.1151
Risk level
Extreme
Yearly peak
16.1357
Peak month
January
Niteroi UV index — monthly trend
Average UV index by month over the past year, with December highlighted.
Visiting Niteroi in December?
In December, Niteroi's typical UV index is about 16.1151 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, Niteroi sees the strongest UV in Winter, peaking around 16.1357 in January. Plan sun protection accordingly.
