Surabaya UV index in September
Typical ultraviolet levels for Surabaya during September, from the past year of data.
Extreme
Surabaya
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
13.6
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
13.5595
Risk level
Extreme
Yearly peak
15.0145
Peak month
March
Surabaya UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Surabaya in September?
In September, Surabaya's typical UV index is about 13.5595 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, Surabaya sees the strongest UV in Fall, peaking around 15.0145 in March. Plan sun protection accordingly.
