Niigata UV index in May
Typical ultraviolet levels for Niigata during May, from the past year of data.
Very High
Niigata
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
8.7
UV Index
May average
Low
Moderate
High
Very High
Extreme
May UV
8.679
Risk level
Very High
Yearly peak
9.8141
Peak month
July
Niigata UV index — monthly trend
Average UV index by month over the past year, with May highlighted.
Visiting Niigata in May?
In May, Niigata's typical UV index is about 8.679 — 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, Niigata sees the strongest UV in Summer, peaking around 9.8141 in July. Plan sun protection accordingly.
