Johannesburg UV index in May
Typical ultraviolet levels for Johannesburg during May, from the past year of data.
High
Johannesburg
High UV. Avoid the sun during peak hours and wear protective clothing, sunscreen, and a hat.
6.9
UV Index
May average
Low
Moderate
High
Very High
Extreme
May UV
6.8933
Risk level
High
Yearly peak
14.7256
Peak month
January
Johannesburg UV index — monthly trend
Average UV index by month over the past year, with May highlighted.
Visiting Johannesburg in May?
In May, Johannesburg's typical UV index is about 6.8933 — a high risk level. High UV. Avoid the sun during peak hours and wear protective 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.
