UV Index in Zeerust, South Africa

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Zeerust, South Africa, where the sun's rays can pose significant risks year-round. With a climate classified as BSh, Zeerust experiences periods of elevated UV levels, particularly during midday hours when UV Index readings can soar to 6, indicating a high risk of harm from unprotected sun exposure. Being aware of these levels not only helps in preventing painful sunburn but also plays a vital role in maintaining overall skin health. By familiarizing yourself with UV exposure risks, you can enjoy the beautiful South African outdoors while keeping your skin safe from its harmful effects.

Hourly UV Index in Zeerust

The UV Index forecast showcases a dynamic day ahead, starting off gently in the early morning with values of 1 at 07:00 and 08:00. As the sun rises higher, we see a gradual increase, peaking at 6 between 12:00 and 13:00, indicating a need for sun protection during these hours. Particularly, the 11:00 and 12:00 slots mark significant levels, reaching 5 and 6 respectively, suggesting that outdoor activities should be planned with caution. As the afternoon progresses, the UV Index dips to 5 at 14:00 and continues to fall, descending to 3 by 15:00. By evening, the UV Index returns to a safer level of 1 by 16:00, and drops to 0 from 18:00 onwards, indicating a soothing end to the day.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	5	moderate	30 min
12:00	6	high	25 min
13:00	6	high	25 min
14:00	5	moderate	30 min
15:00	3	moderate	30 min
16:00	1	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Zeerust

The UV index varies significantly throughout the year, with extremely high levels from January to April and in September through November. The highest risk months are January, February, and December, each showing an index of 16 and a burn time of just 10 minutes for unprotected skin. During these months, it is crucial for visitors and residents to take precautions, such as wearing protective clothing, applying sunscreen regularly, and seeking shade whenever possible. As we move into the warmer months, like May through August, while the UV index decreases slightly, it remains at very high to high levels. In these months, a burn time of 15-25 minutes indicates that extra care is still needed, particularly during midday hours. To ensure safety throughout the year, staying informed and cautious about UV exposure is essential.

Monthly Maximum UV Index for Zeerust, South Africa

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Zeerust. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Zeerust, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Zeerust UV Index with Other South Africa Cities

The table above highlights how UV exposure in Zeerust compares to other major locations across South Africa. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Zeerust's solar exposure compared to other cities in South Africa. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cape Town UVI	14	13	11	8	5	3	4	6	9	11	12	14
Durban UVI	14	13	12	9	6	4	5	7	9	11	13	15
Johannesburg UVI	15	15	13	10	7	6	6	8	11	12	14	16
Pretoria UVI	16	15	13	10	7	6	6	9	11	13	14	16
Soweto UVI	16	15	13	11	7	6	6	8	11	13	15	16
Zeerust	16	16	13	11	8	6	6	9	11	13	14	16