Questions & Answers about Die UV-indeks is hoog.
Afrikaans often uses a hyphen in compounds when the first part is:
- an abbreviation
- initials
- a letter or symbol
So UV-indeks is the normal written form for UV index.
This is very common in Afrikaans spelling:
- TV-program
- DNA-toets
- A-span
Without the hyphen, it would look less natural in standard Afrikaans.