Kumamoto UV index in September
Typical ultraviolet levels for Kumamoto during September, from the past year of data.
Very High
Kumamoto
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
9.2
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
9.2053
Risk level
Very High
Yearly peak
11.4034
Peak month
July
Kumamoto UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Kumamoto in September?
In September, Kumamoto's typical UV index is about 9.2053 — 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, Kumamoto sees the strongest UV in Summer, peaking around 11.4034 in July. Plan sun protection accordingly.
