Manhattan UV index in December
Typical ultraviolet levels for Manhattan during December, from the past year of data.
Low UV. You can safely enjoy being outside; the sun's rays are not very strong.
December average
Manhattan UV index — monthly trend
Average UV index by month over the past year, with December highlighted.
Visiting Manhattan in December?
In December, Manhattan's typical UV index is about 1.6099 — a low risk level. Low UV. You can safely enjoy being outside; the sun's rays are not very strong.
Across the year, Manhattan sees the strongest UV in Summer, peaking around 10.1029 in July. Plan sun protection accordingly.