UV Index in Clanwilliam, South Africa

Last updated: May 3, 2025

In Clanwilliam, South Africa, understanding the UV Index is crucial for safeguarding your skin against harmful rays. With a climate classified as BSh, residents and visitors alike should be aware that UV levels can peak during midday, reaching a maximum of 6 around 1 PM. By keeping an eye on the UV Index, you can effectively prevent sunburn, reduce the risk of skin cancer, and maintain overall skin health. As you enjoy the sun-soaked beauty of Clanwilliam, staying informed about UV exposure risks will help you make smart choices for your outdoor activities.

Hourly UV Index in Clanwilliam

The UV Index for today paints a clear picture of sun exposure throughout the day. Starting from a low of 0 at 07:00, the intensity gradually rises, reaching a moderate 6 at 13:00, marking the peak of midday sun. As the clock ticks down from 14:00, the UV Index begins to decline, dropping to 5 and later tapering off to 1 by 17:00. Finally, by 18:00, the UV Index falls back to a safe 0, indicating it's time to seek shelter from the sun. If you're planning outdoor activities, ensure to wear protective gear during the peak hours between 11:00 and 14:00 for optimal safety.

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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	4	moderate	30 min
12:00	5	moderate	30 min
13:00	6	high	25 min
14:00	5	moderate	30 min
15:00	3	moderate	30 min
16:00	2	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 Clanwilliam

Throughout the year, UV exposure varies significantly, with January, February, October, November, and December experiencing extreme conditions, characterized by a high UV Index of 15 or 14 and a burn time of just 10 minutes. March follows closely with a UV Index of 12. The high-risk months for UV exposure are thus primarily found in the first quarter of the year and again in late fall. In contrast, April marks a transition to very high exposure (UV Index 9), while May and August shift to a high risk classification. Summer months, particularly June and July, moderate to a 4 on the UV scale, requiring less caution (30 minutes burn time). Visitors and residents should take extra precautions during peak months — especially from January to March and from October to December — by wearing protective clothing, using sunscreen, and limiting sun exposure to avoid harmful effects.

Monthly Maximum UV Index for Clanwilliam, South Africa

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Clanwilliam. 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 Clanwilliam, 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 Clanwilliam UV Index with Other South Africa Cities

The table above highlights how UV exposure in Clanwilliam 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.

Clanwilliam'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
Clanwilliam	15	14	12	9	6	4	4	6	9	12	13	15
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