Fortaleza UV index in September
Typical ultraviolet levels for Fortaleza during September, from the past year of data.
Extreme
Fortaleza
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
14.8
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
14.8081
Risk level
Extreme
Yearly peak
15.6749
Peak month
October
Fortaleza UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Fortaleza in September?
In September, Fortaleza's typical UV index is about 14.8081 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, Fortaleza sees the strongest UV in Fall, peaking around 15.6749 in October. Plan sun protection accordingly.
