Johannesburg UV index in December
Typical ultraviolet levels for Johannesburg during December, from the past year of data.
Extreme
Johannesburg
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
14.7
UV Index
December average UTC
Low
Moderate
High
Very High
Extreme
December UV
14.674
Risk level
Extreme
Yearly peak
14.7256
Peak month
January
Johannesburg UV index — monthly trend
Average UV index by month over the past year, with December highlighted.
Visiting Johannesburg in December?
In December, Johannesburg's typical UV index is about 14.674 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, Johannesburg sees the strongest UV in Winter, peaking around 14.7256 in January. Plan sun protection accordingly.
