Hamamatsu UV index in September

Typical ultraviolet levels for Hamamatsu during September, from the past year of data.

Very High Hamamatsu

Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.

September average

September UV
8.3074
Risk level
Very High
Yearly peak
10.5572
Peak month
July

Hamamatsu UV index — monthly trend

Average UV index by month over the past year, with September highlighted.

How this is calculated

Visiting Hamamatsu in September?

In September, Hamamatsu's typical UV index is about 8.3074 — 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, Hamamatsu sees the strongest UV in Summer, peaking around 10.5572 in July. Plan sun protection accordingly.